org.apache.jackrabbit.core.query.lucene.constraint
Class AndConstraint

java.lang.Object
  org.apache.jackrabbit.core.query.lucene.constraint.AndConstraint

All Implemented Interfaces:

Constraint

public class AndConstraint
extends Object
implements Constraint

AndConstraint implements an AND constraint.

Constructor Summary

AndConstraint(Constraint left, Constraint right)
Creates a new AND constraint.

Method Summary

boolean

evaluate(ScoreNode[] row, Name[] selectorNames, EvaluationContext context) Evaluates this constraint for the given row.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AndConstraint

public AndConstraint(Constraint left,
                     Constraint right)

Creates a new AND constraint.

Parameters:

left - the left operand.

right - the right operand.

Method Detail

evaluate

public boolean evaluate(ScoreNode[] row,
                        Name[] selectorNames,
                        EvaluationContext context)
                 throws IOException

Evaluates this constraint for the given row.

Specified by:

evaluate in interface Constraint

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.