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

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

Direct Known Subclasses:

FullTextSearchScoreOperand, LengthOperand, LowerCaseOperand, NodeLocalNameOperand, NodeNameOperand, PropertyValueOperand, UpperCaseOperand

public abstract class DynamicOperand
extends Object

DynamicOperand is a base class for dynamic operands.

Field Summary

protected static Value[]

EMPTY An empty Value array.

Constructor Summary

DynamicOperand()

Method Summary

abstract Value[]

getValues(ScoreNode sn, EvaluationContext context) Returns the values for the given score node sn of this dynamic operand.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

protected static final Value[] EMPTY

An empty Value array.

Constructor Detail

DynamicOperand

public DynamicOperand()

Method Detail

getValues

public abstract Value[] getValues(ScoreNode sn,
                                  EvaluationContext context)
                           throws RepositoryException

Returns the values for the given score node sn of this dynamic operand. If there are no values for the given score node, then an empty array is returned.

Parameters:

sn - the current score node.

context - the evaluation context.

Returns:

the values for the given score node.

Throws:

RepositoryException - if an error occurs while retrieving the value.