* Make RowSet a public static class to allow its methods to be called by Rhino.
This commit is contained in:
hns
parent
a40d1191ab
commit
a38f504db3
1 changed files with 338 additions and 336 deletions
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@ -259,373 +259,375 @@ public class DatabaseObject {
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}
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return databaseMetaData;
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}
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}
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/**
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* A RowSet object
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*/
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public static class RowSet {
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/**
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* A RowSet object
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*/
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class RowSet {
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private transient String sql = null;
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private transient Statement statement = null;
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private transient ResultSet resultSet = null;
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private transient ResultSetMetaData resultSetMetaData = null;
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private transient Vector colNames = null;
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private transient boolean lastRowSeen = false;
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private transient boolean firstRowSeen = false;
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private transient Exception lastError = null;
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private transient String sql = null;
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private transient Statement statement = null;
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private transient ResultSet resultSet = null;
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private transient ResultSetMetaData resultSetMetaData = null;
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private transient Vector colNames = null;
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private transient boolean lastRowSeen = false;
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private transient boolean firstRowSeen = false;
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private transient Exception lastError = null;
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RowSet(String sql,
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DatabaseObject database,
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Statement statement,
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ResultSet resultSet) throws SQLException {
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this.sql = sql;
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this.statement = statement;
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this.resultSet = resultSet;
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RowSet(String sql,
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DatabaseObject database,
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Statement statement,
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ResultSet resultSet) throws SQLException {
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this.sql = sql;
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this.statement = statement;
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this.resultSet = resultSet;
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if (sql==null) throw new NullPointerException("sql");
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if (resultSet==null) throw new NullPointerException("resultSet");
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if (statement==null) throw new NullPointerException("statement");
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if (database==null) throw new NullPointerException("database");
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if (sql==null) throw new NullPointerException("sql");
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if (resultSet==null) throw new NullPointerException("resultSet");
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if (statement==null) throw new NullPointerException("statement");
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if (database==null) throw new NullPointerException("database");
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try {
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this.resultSetMetaData = resultSet.getMetaData();
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int numcols = resultSetMetaData.getColumnCount();
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//IServer.getLogger().log("$$NEXT : " + numcols);
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colNames = new Vector(numcols);
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for (int i=0; i<numcols; i++) {
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String colName = resultSetMetaData.getColumnLabel(i+1);
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//IServer.getLogger().log("$$COL : " + colName);
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colNames.addElement(colName);
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}
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} catch(SQLException e) {
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colNames = new Vector(); // An empty one
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throw new SQLException("Could not get column names: "+e);
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// System.err.println("##Cannot get column names: " + e);
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// e.printStackTrace();
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}
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}
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public String getClassName() {
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return "RowSet";
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}
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public String toDetailString() {
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return "ES:[Object: builtin " + this.getClass().getName() + ":" +
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this.toString() + "]";
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}
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public int getColumnCount() {
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return colNames.size();
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}
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public Object getMetaData()
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{
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return resultSetMetaData;
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}
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public Object getLastError() {
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if (lastError == null) {
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return null;
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} else {
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return lastError;
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}
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}
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public void release() {
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try {
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if (statement!= null) statement.close();
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if (resultSet != null) resultSet.close();
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} catch (SQLException e) {
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// ignored
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}
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statement = null;
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resultSet = null;
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resultSetMetaData = null;
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}
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public boolean hasMoreRows() {
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return !lastRowSeen; // Simplistic implementation
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}
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public String getColumnName(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (idx>0 && idx <=colNames.size()) {
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return (String) colNames.elementAt(idx-1); // to base 0
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return null;
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}
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}
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public int getColumnDatatypeNumber(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return -1;
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}
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if (idx>0 && idx <=colNames.size()) {
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try {
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return resultSetMetaData.getColumnType(idx);
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} catch (SQLException e) {
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lastError = e;
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return -1;
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this.resultSetMetaData = resultSet.getMetaData();
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int numcols = resultSetMetaData.getColumnCount();
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//IServer.getLogger().log("$$NEXT : " + numcols);
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colNames = new Vector(numcols);
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for (int i=0; i<numcols; i++) {
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String colName = resultSetMetaData.getColumnLabel(i+1);
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//IServer.getLogger().log("$$COL : " + colName);
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colNames.addElement(colName);
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}
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} catch(SQLException e) {
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colNames = new Vector(); // An empty one
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throw new SQLException("Could not get column names: "+e);
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// System.err.println("##Cannot get column names: " + e);
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// e.printStackTrace();
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}
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return -1;
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}
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}
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public String getColumnDatatypeName(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (idx>0 && idx <=colNames.size()) {
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try {
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return resultSetMetaData.getColumnTypeName(idx);
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} catch (SQLException e) {
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lastError = e;
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public String getClassName() {
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return "RowSet";
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}
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public String toDetailString() {
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return "ES:[Object: builtin " + this.getClass().getName() + ":" +
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this.toString() + "]";
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}
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public int getColumnCount() {
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return colNames.size();
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}
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public Object getMetaData()
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{
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return resultSetMetaData;
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}
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public Object getLastError() {
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if (lastError == null) {
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return null;
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} else {
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return lastError;
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}
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return null;
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}
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}
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public Object getColumnItem(String propertyName) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (!firstRowSeen) {
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lastError = new SQLException("Attempt to access data before the first row is read");
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return null;
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}
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try {
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public void release() {
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try {
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int index = Integer.parseInt(propertyName);
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return getProperty(index);
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} catch (NumberFormatException e) {
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int index = resultSet.findColumn(propertyName);
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return getProperty(index);
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if (statement!= null) statement.close();
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if (resultSet != null) resultSet.close();
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} catch (SQLException e) {
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// ignored
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}
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} catch (SQLException e) {
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//System.err.println("##Cannot get property '" + propertyName + "' " + e);
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//e.printStackTrace();
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lastError = e;
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}
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return null;
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}
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statement = null;
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resultSet = null;
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resultSetMetaData = null;
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}
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/* FIXME: dunno if this method is still used somewhere
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public Object getProperty(String propertyName, int hash) {
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//System.err.println(" &&& Getting property '" + propertyName + "'");
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public boolean hasMoreRows() {
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return !lastRowSeen; // Simplistic implementation
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}
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// Length property is firsy checked
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// First return system or or prototype properties
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if (propertyName.equals("length")) {
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return new Integer(colNames.size());
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} else {
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public String getColumnName(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (idx>0 && idx <=colNames.size()) {
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return (String) colNames.elementAt(idx-1); // to base 0
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return null;
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}
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}
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public int getColumnDatatypeNumber(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return -1;
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}
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if (idx>0 && idx <=colNames.size()) {
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try {
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return resultSetMetaData.getColumnType(idx);
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} catch (SQLException e) {
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lastError = e;
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return -1;
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}
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return -1;
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}
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}
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public String getColumnDatatypeName(int idx) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (idx>0 && idx <=colNames.size()) {
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try {
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return resultSetMetaData.getColumnTypeName(idx);
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} catch (SQLException e) {
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lastError = e;
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return null;
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}
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} else {
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lastError = new SQLException("Column index (base 1) " + idx +
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" out of range, max: " +colNames.size());
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return null;
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}
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}
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public Object getColumnItem(String propertyName) {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (!firstRowSeen) {
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lastError = new SQLException("Attempt to access data before the first row is read");
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return null;
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}
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try {
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try {
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int index = Integer.parseInt(propertyName);
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return getProperty(index);
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} catch (NumberFormatException e) {
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int index = resultSet.findColumn(propertyName);
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return getProperty(index);
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}
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} catch (SQLException e) {
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//System.err.println("##Cannot get property '" + propertyName + "' " + e);
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//e.printStackTrace();
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lastError = e;
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}
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return null;
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}
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/* FIXME: dunno if this method is still used somewhere
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public Object getProperty(String propertyName, int hash) {
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//System.err.println(" &&& Getting property '" + propertyName + "'");
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// Length property is firsy checked
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// First return system or or prototype properties
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if (propertyName.equals("length")) {
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return new Integer(colNames.size());
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} else {
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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if (!firstRowSeen) {
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lastError = new SQLException("Attempt to access data before the first row is read");
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return null;
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}
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try {
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int index = -1; // indicates not a valid index value
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try {
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char c = propertyName.charAt(0);
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if ('0' <= c && c <= '9') {
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index = Integer.parseInt(propertyName);
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}
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} catch (NumberFormatException e) {
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} catch (StringIndexOutOfBoundsException e) { // for charAt
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}
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if (index>=0) {
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return getProperty(index);
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}
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Object value = resultSet.getObject(propertyName);
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// IServer.getLogger().log("&& @VALUE : " + value);
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lastError = null;
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return value;
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} catch (SQLException e) {
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// System.err.println("##Cannot get property '" + propertyName + "' " + e);
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// e.printStackTrace();
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lastError = e;
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}
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}
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return null;
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}
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*/
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public Object getProperty(int index) {
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if (!firstRowSeen) {
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lastError = new SQLException("Attempt to access data before the first row is read");
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return null;
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}
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try {
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int index = -1; // indicates not a valid index value
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try {
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char c = propertyName.charAt(0);
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if ('0' <= c && c <= '9') {
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index = Integer.parseInt(propertyName);
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}
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} catch (NumberFormatException e) {
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} catch (StringIndexOutOfBoundsException e) { // for charAt
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}
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if (index>=0) {
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return getProperty(index);
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}
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Object value = resultSet.getObject(propertyName);
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// IServer.getLogger().log("&& @VALUE : " + value);
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lastError = null;
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return value;
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} catch (SQLException e) {
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// System.err.println("##Cannot get property '" + propertyName + "' " + e);
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// e.printStackTrace();
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lastError = e;
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}
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}
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return null;
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}
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*/
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public Object getProperty(int index) {
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if (!firstRowSeen) {
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lastError = new SQLException("Attempt to access data before the first row is read");
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return null;
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}
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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lastError = null;
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try {
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int type = resultSetMetaData.getColumnType(index);
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switch (type) {
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case Types.BIT:
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return new Boolean(resultSet.getBoolean(index));
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case Types.TINYINT:
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case Types.BIGINT:
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case Types.SMALLINT:
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case Types.INTEGER:
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return new Long(resultSet.getLong(index));
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case Types.REAL:
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case Types.FLOAT:
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case Types.DOUBLE:
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return new Double(resultSet.getDouble(index));
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case Types.DECIMAL:
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case Types.NUMERIC:
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BigDecimal num = resultSet.getBigDecimal(index);
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if (num == null) {
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break;
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}
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if (num.scale() > 0) {
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return new Double(num.doubleValue());
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} else {
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return new Long(num.longValue());
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}
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case Types.VARBINARY:
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case Types.BINARY:
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return resultSet.getString(index);
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case Types.LONGVARBINARY:
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case Types.LONGVARCHAR:
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try {
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return resultSet.getString(index);
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} catch (SQLException x) {
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Reader in = resultSet.getCharacterStream(index);
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char[] buffer = new char[2048];
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int read = 0;
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int r = 0;
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while ((r = in.read(buffer, read, buffer.length - read)) > -1) {
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read += r;
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if (read == buffer.length) {
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// grow input buffer
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char[] newBuffer = new char[buffer.length * 2];
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System.arraycopy(buffer, 0, newBuffer, 0,
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buffer.length);
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buffer = newBuffer;
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}
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}
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return new String(buffer, 0, read);
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}
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case Types.DATE:
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case Types.TIME:
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case Types.TIMESTAMP:
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return resultSet.getTimestamp(index);
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case Types.NULL:
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return null;
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case Types.CLOB:
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Clob cl = resultSet.getClob(index);
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if (cl == null) {
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return null;
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}
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char[] c = new char[(int) cl.length()];
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Reader isr = cl.getCharacterStream();
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isr.read(c);
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return String.copyValueOf(c);
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default:
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return resultSet.getString(index);
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if (resultSet == null) {
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lastError = new SQLException("Attempt to access a released result set");
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return null;
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}
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} catch (SQLException e) {
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// System.err.println("##Cannot get property: " + e);
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// e.printStackTrace();
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lastError = e;
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} catch (IOException ioe) {
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lastError = ioe;
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}
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return null;
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}
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/*
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* Returns an enumerator for the key elements of this object.
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*
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* @return the enumerator - may have 0 length of coulmn names where not found
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*/
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public Enumeration getProperties() {
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if (resultSet == null) {
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return (new Vector()).elements();
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}
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return colNames.elements();
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}
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|
||||
public String[] getSpecialPropertyNames() {
|
||||
return new String[] {"length"};
|
||||
}
|
||||
|
||||
|
||||
public boolean next() {
|
||||
boolean status = false;
|
||||
if (lastRowSeen) {
|
||||
lastError = new SQLException("Attempt to access a next row after last row has been returned");
|
||||
return false;
|
||||
}
|
||||
if (resultSet == null) {
|
||||
lastError = new SQLException("Attempt to access a released result set");
|
||||
return false;
|
||||
}
|
||||
try {
|
||||
status = resultSet.next();
|
||||
lastError = null;
|
||||
} catch (SQLException e) {
|
||||
// System.err.println("##Cannot do next:" + e);
|
||||
// e.printStackTrace();
|
||||
lastError = e;
|
||||
}
|
||||
if (status) firstRowSeen = true;
|
||||
else lastRowSeen = true;
|
||||
return status;
|
||||
}
|
||||
try {
|
||||
int type = resultSetMetaData.getColumnType(index);
|
||||
switch (type) {
|
||||
case Types.BIT:
|
||||
return new Boolean(resultSet.getBoolean(index));
|
||||
|
||||
case Types.TINYINT:
|
||||
case Types.BIGINT:
|
||||
case Types.SMALLINT:
|
||||
case Types.INTEGER:
|
||||
return new Long(resultSet.getLong(index));
|
||||
|
||||
case Types.REAL:
|
||||
case Types.FLOAT:
|
||||
case Types.DOUBLE:
|
||||
return new Double(resultSet.getDouble(index));
|
||||
|
||||
case Types.DECIMAL:
|
||||
case Types.NUMERIC:
|
||||
BigDecimal num = resultSet.getBigDecimal(index);
|
||||
if (num == null) {
|
||||
break;
|
||||
}
|
||||
|
||||
if (num.scale() > 0) {
|
||||
return new Double(num.doubleValue());
|
||||
} else {
|
||||
return new Long(num.longValue());
|
||||
}
|
||||
|
||||
case Types.VARBINARY:
|
||||
case Types.BINARY:
|
||||
return resultSet.getString(index);
|
||||
|
||||
case Types.LONGVARBINARY:
|
||||
case Types.LONGVARCHAR:
|
||||
try {
|
||||
return resultSet.getString(index);
|
||||
} catch (SQLException x) {
|
||||
Reader in = resultSet.getCharacterStream(index);
|
||||
char[] buffer = new char[2048];
|
||||
int read = 0;
|
||||
int r = 0;
|
||||
|
||||
while ((r = in.read(buffer, read, buffer.length - read)) > -1) {
|
||||
read += r;
|
||||
|
||||
if (read == buffer.length) {
|
||||
// grow input buffer
|
||||
char[] newBuffer = new char[buffer.length * 2];
|
||||
|
||||
System.arraycopy(buffer, 0, newBuffer, 0,
|
||||
buffer.length);
|
||||
buffer = newBuffer;
|
||||
}
|
||||
}
|
||||
return new String(buffer, 0, read);
|
||||
}
|
||||
|
||||
case Types.DATE:
|
||||
case Types.TIME:
|
||||
case Types.TIMESTAMP:
|
||||
return resultSet.getTimestamp(index);
|
||||
|
||||
case Types.NULL:
|
||||
return null;
|
||||
|
||||
case Types.CLOB:
|
||||
Clob cl = resultSet.getClob(index);
|
||||
if (cl == null) {
|
||||
return null;
|
||||
}
|
||||
char[] c = new char[(int) cl.length()];
|
||||
Reader isr = cl.getCharacterStream();
|
||||
isr.read(c);
|
||||
return String.copyValueOf(c);
|
||||
|
||||
default:
|
||||
return resultSet.getString(index);
|
||||
}
|
||||
} catch (SQLException e) {
|
||||
// System.err.println("##Cannot get property: " + e);
|
||||
// e.printStackTrace();
|
||||
lastError = e;
|
||||
} catch (IOException ioe) {
|
||||
lastError = ioe;
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns an enumerator for the key elements of this object.
|
||||
*
|
||||
* @return the enumerator - may have 0 length of coulmn names where not found
|
||||
*/
|
||||
public Enumeration getProperties() {
|
||||
if (resultSet == null) {
|
||||
return (new Vector()).elements();
|
||||
}
|
||||
return colNames.elements();
|
||||
}
|
||||
|
||||
|
||||
public String[] getSpecialPropertyNames() {
|
||||
return new String[] {"length"};
|
||||
}
|
||||
|
||||
|
||||
public boolean next() {
|
||||
boolean status = false;
|
||||
if (lastRowSeen) {
|
||||
lastError = new SQLException("Attempt to access a next row after last row has been returned");
|
||||
return false;
|
||||
}
|
||||
if (resultSet == null) {
|
||||
lastError = new SQLException("Attempt to access a released result set");
|
||||
return false;
|
||||
}
|
||||
try {
|
||||
status = resultSet.next();
|
||||
lastError = null;
|
||||
} catch (SQLException e) {
|
||||
// System.err.println("##Cannot do next:" + e);
|
||||
// e.printStackTrace();
|
||||
lastError = e;
|
||||
}
|
||||
if (status) firstRowSeen = true;
|
||||
else lastRowSeen = true;
|
||||
return status;
|
||||
}
|
||||
|
||||
public String toString() {
|
||||
return "[RowSet: '"+sql+"'" +
|
||||
(resultSet==null ? " - released]" :
|
||||
(lastRowSeen ? " - at end]" :
|
||||
(firstRowSeen ? "]" : " - at start]")));
|
||||
}
|
||||
|
||||
public String toString() {
|
||||
return "[RowSet: '"+sql+"'" +
|
||||
(resultSet==null ? " - released]" :
|
||||
(lastRowSeen ? " - at end]" :
|
||||
(firstRowSeen ? "]" : " - at start]")));
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue