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* Reenable prefetchChildren() for grouped subnodes.

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* Make Subnodelist.add()/get() type-safe by using NodeHandle instead of java.lang.Object.
This commit is contained in:
hns 2009-08-14 11:42:42 +00:00
parent d781142af1
commit a56cdaee59
4 changed files with 39 additions and 52 deletions
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2
src/helma/objectmodel/db/Node.java
View file

@ -1119,7 +1119,7 @@ public final class Node implements INode, Serializable {
for (int i = 0; i < l; i++)
try {
NodeHandle shandle = (NodeHandle) subnodes.get(i);
NodeHandle shandle = subnodes.get(i);
if (subid.equals(shandle.getID())) {
// System.err.println ("FOUND SUBNODE: "+shandle);

44
src/helma/objectmodel/db/NodeManager.java
View file

@ -1039,7 +1039,7 @@ public final class NodeManager {
protected List collectMissingKeys(SubnodeList list, int start, int length) {
List retval = null;
for (int i = start; i < start + length; i++) {
NodeHandle handle = (NodeHandle) list.get(i);
NodeHandle handle = list.get(i);
if (handle != null && !cache.containsKey(handle.getKey())) {
if (retval == null) {
retval = new ArrayList();
@ -1121,18 +1121,25 @@ public final class NodeManager {
// group nodes.
String groupName = null;
/* if (groupbyProp != null) {
if (groupbyProp != null) {
groupName = node.getString(groupbyProp);
if (groupName != null) {
Node groupNode = (Node) groupbySubnodes.get(groupName);
SubnodeList sn = (SubnodeList) groupbySubnodes.get(groupName);
if (groupNode == null) {
groupNode = home.getGroupbySubnode(groupName, true);
groupbySubnodes.put(groupName, groupNode);
}
if (sn == null) {
sn = new SubnodeList(safe, rel);
groupbySubnodes.put(groupName, sn);
SubnodeList subnodes = groupNode.getSubnodeList();
if (subnodes == null) {
subnodes = groupNode.createSubnodeList();
// mark subnodes as up-to-date
subnodes.lastSubnodeFetch = subnodes.getLastSubnodeChange();
}
subnodes.add(new NodeHandle(key));
}
sn.add(new NodeHandle(key));
} */
}
// if relation doesn't use primary key as accessName, get secondary key
if (accessProp != null) {
@ -1151,28 +1158,9 @@ public final class NodeManager {
// register new nodes with the cache. If an up-to-date copy
// existed in the cache, use that.
registerNewNode(node, secondaryKey);
fetchJoinedNodes(rs, joins, columns.length);
}
// If these are grouped nodes, build the intermediary group nodes
// with the subnod lists we created
/* if (groupbyProp != null) {
for (Iterator i = groupbySubnodes.keySet().iterator();
i.hasNext();) {
String groupname = (String) i.next();
if (groupname == null) {
continue;
}
Node groupnode = home.getGroupbySubnode(groupname, true);
groupnode.setSubnodes((SubnodeList) groupbySubnodes.get(groupname));
groupnode.lastSubnodeFetch =
groupnode.getLastSubnodeChange(groupnode.dbmap.getSubnodeRelation());
}
} */
} catch (Exception x) {
app.logError("Error in prefetchNodes()", x);
} finally {

20
src/helma/objectmodel/db/SegmentedSubnodeList.java
View file

@ -33,34 +33,34 @@ public class SegmentedSubnodeList extends SubnodeList {
* Adds the specified object to this list performing
* custom ordering
*
* @param obj element to be inserted.
* @param handle element to be inserted.
*/
public synchronized boolean add(Object obj) {
public synchronized boolean add(NodeHandle handle) {
if (!hasRelationalNodes() || segments == null) {
return super.add(obj);
return super.add(handle);
}
if (subnodeCount == -1) {
update();
}
subnodeCount++;
segments[segments.length - 1].length += 1;
return list.add(obj);
return list.add(handle);
}
/**
* Adds the specified object to the list at the given position
* @param index the index to insert the element at
* @param obj the object t add
* @param handle the object to add
*/
public synchronized void add(int index, Object obj) {
public synchronized void add(int index, NodeHandle handle) {
if (!hasRelationalNodes() || segments == null) {
super.add(index, obj);
super.add(index, handle);
return;
}
if (subnodeCount == -1) {
update();
}
subnodeCount++;
list.add(index, obj);
list.add(index, handle);
// shift segment indices by one
int s = getSegment(index);
segments[s].length += 1;
@ -69,7 +69,7 @@ public class SegmentedSubnodeList extends SubnodeList {
}
}
public Object get(int index) {
public NodeHandle get(int index) {
if (!hasRelationalNodes() || segments == null) {
return super.get(index);
}
@ -77,7 +77,7 @@ public class SegmentedSubnodeList extends SubnodeList {
return null;
}
loadSegment(getSegment(index), false);
return list.get(index);
return (NodeHandle) list.get(index);
}
public synchronized boolean contains(Object object) {

25
src/helma/objectmodel/db/SubnodeList.java
View file

@ -50,30 +50,30 @@ public class SubnodeList implements Serializable {
* Adds the specified object to this list performing
* custom ordering
*
* @param obj element to be inserted.
* @param handle element to be inserted.
*/
public boolean add(Object obj) {
return list.add(obj);
public boolean add(NodeHandle handle) {
return list.add(handle);
}
/**
* Adds the specified object to the list at the given position
* @param idx the index to insert the element at
* @param obj the object t add
* @param handle the object to add
*/
public void add(int idx, Object obj) {
list.add(idx, obj);
public void add(int idx, NodeHandle handle) {
list.add(idx, handle);
}
public Object get(int index) {
public NodeHandle get(int index) {
if (index < 0 || index >= list.size()) {
return null;
}
return list.get(index);
return (NodeHandle) list.get(index);
}
public Node getNode(int index) {
Node retval = null;
NodeHandle handle = (NodeHandle) get(index);
NodeHandle handle = get(index);
if (handle != null) {
retval = handle.getNode(node.nmgr);
@ -149,12 +149,11 @@ public class SubnodeList implements Serializable {
}
DbMapping dbmap = getSubnodeMapping();
Relation rel = getSubnodeRelation();
if (!dbmap.isRelational() || rel.getGroup() != null) {
return;
if (dbmap.isRelational()) {
Relation rel = getSubnodeRelation();
node.nmgr.prefetchNodes(node, rel, this, start, length);
}
node.nmgr.prefetchNodes(node, rel, this, start, length);
}
/**