org.apache.jackrabbit.core.query.lucene.constraint
Class ChildNodeConstraint
java.lang.Object
org.apache.jackrabbit.core.query.lucene.constraint.SelectorBasedConstraint
org.apache.jackrabbit.core.query.lucene.constraint.HierarchyConstraint
org.apache.jackrabbit.core.query.lucene.constraint.ChildNodeConstraint
- All Implemented Interfaces:
- Constraint
public class ChildNodeConstraint
- extends HierarchyConstraint
ChildNodeConstraint
implements a child node constraint.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ChildNodeConstraint
public ChildNodeConstraint(ChildNodeImpl constraint,
SelectorImpl selector)
- Creates a child node constraint from the given QOM
constraint
on the given selector
.
- Parameters:
constraint
- the QOM child node constraint.selector
- the selector.
evaluate
public boolean evaluate(ScoreNode[] row,
Name[] selectorNames,
EvaluationContext context)
throws IOException
- Evaluates this constraint for the given row.
- Parameters:
row
- the current row of score nodes.selectorNames
- the selector names associated with row
.context
- the evaluation context.
- Returns:
true
if the row satisfies the constraint,
false
otherwise.
- Throws:
IOException
- if an error occurs while evaluating the constraint.
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