antville/helma
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increased node serialization version, check for order in getGroupbySubnode

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hns 2001-01-09 21:40:09 +00:00
parent 433fb5d580
commit 30f539b396
1 changed files with 14 additions and 6 deletions
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20
src/helma/objectmodel/db/Node.java
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@ -46,6 +46,9 @@ public class Node implements INode, Serializable {
private void readObject (ObjectInputStream in) throws IOException {
try {
// as a general rule of thumb, if a string can bu null use read/writeObject,
// if not it's save to use read/writeUTF.
// version indicates the serialization version
int version = in.readShort ();
id = in.readUTF ();
name = in.readUTF ();
@ -59,15 +62,17 @@ public class Node implements INode, Serializable {
proplinks = (Vector) in.readObject ();
propMap = (Hashtable) in.readObject ();
anonymous = in.readBoolean ();
if (version > 1)
if (version == 2)
prototype = in.readUTF ();
else if (version == 3)
prototype = (String) in.readObject ();
} catch (ClassNotFoundException x) {
throw new IOException (x.toString ());
}
}
private void writeObject (ObjectOutputStream out) throws IOException {
out.writeShort (2); // serialization version
out.writeShort (3); // serialization version
out.writeUTF (id);
out.writeUTF (name);
out.writeObject (parentID);
@ -84,7 +89,7 @@ public class Node implements INode, Serializable {
out.writeObject (proplinks);
out.writeObject (propMap);
out.writeBoolean (anonymous);
out.writeUTF (prototype);
out.writeObject (prototype);
}
transient String prototype;
@ -795,14 +800,17 @@ public class Node implements INode, Serializable {
Relation srel = dbmap.getSubnodeRelation ();
Relation prel = dbmap.getPropertyRelation ();
DbMapping dbm = new DbMapping ();
Relation gsrel = srel.getGroupbySubnodeRelation();
dbm.setSubnodeMapping (srel.other);
dbm.setSubnodeRelation (srel.getGroupbySubnodeRelation());
dbm.setSubnodeRelation (gsrel);
dbm.setPropertyMapping (prel.other);
dbm.setPropertyRelation (prel.getGroupbyPropertyRelation());
node.setDbMapping (dbm);
String snrel = "WHERE "+srel.groupby +"='"+sid+"'";
if (dbm.getSubnodeRelation().direction == Relation.BACKWARD)
snrel += " AND "+dbm.getSubnodeRelation().remoteField+"='"+getNonVirtualHomeID()+"'";
if (gsrel.direction == Relation.BACKWARD)
snrel += " AND "+gsrel.remoteField+"='"+getNonVirtualHomeID()+"'";
if (gsrel.order != null)
snrel += " ORDER BY "+gsrel.order;
node.setSubnodeRelation (snrel);
return node;
} catch (Exception noluck) {}