/**
* Creates a new child node join condition.
*
* @param parent the inner query hits.
* @param reader the index reader.
* @param resolver the hierarchy resolver.
* @param condition the QOM child node join condition.
* @throws IOException if an error occurs while reading from the index.
*/
public ChildNodeJoin(
MultiColumnQueryHits parent,
IndexReader reader,
HierarchyResolver resolver,
ChildNodeJoinConditionImpl condition)
throws IOException {
super(parent);
this.reader = reader;
this.resolver = resolver;
int idx = getIndex(parent, condition.getParentSelectorQName());
ScoreNode[] nodes;
while ((nodes = parent.nextScoreNodes()) != null) {
Integer docNum = nodes[idx].getDoc(reader);
parentIndex.addScoreNodes(docNum, nodes);
}
}
/**
* Creates an ancestor path node join.
*
* @param context the inner query hits.
* @param contextSelectorName the selector name for the inner query hits.
* @param relPath the relative path of the join condition.
* @param hmgr the hierarchy manager of the workspace.
* @throws IOException if an error occurs while reading from the index.
*/
public AncestorPathNodeJoin(
MultiColumnQueryHits context, Name contextSelectorName, Path relPath, HierarchyManager hmgr)
throws IOException {
super(context);
this.hmgr = hmgr;
this.relPath = relPath;
int idx = getIndex(context, contextSelectorName);
ScoreNode[] nodes;
while ((nodes = context.nextScoreNodes()) != null) {
try {
Path p = hmgr.getPath(nodes[idx].getNodeId());
contextIndex.addScoreNodes(p, nodes);
} catch (RepositoryException e) {
// ignore
}
}
}