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

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

public class PropertyValueOperand
extends DynamicOperand

PropertyValueOperand implements a property value operand.

Field Summary

Fields inherited from class org.apache.jackrabbit.core.query.lucene.constraint.DynamicOperand

EMPTY

Constructor Summary

PropertyValueOperand(PropertyValueImpl operand)
Creates a new property value operand.

Method Summary

Property	getProperty(ScoreNode sn, EvaluationContext context) Returns the property for the given score node or null if none exists.
PropertyState	getPropertyState(ScoreNode sn, EvaluationContext context) Returns the property state for the given score node or null if none exists.
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

Constructor Detail

PropertyValueOperand

public PropertyValueOperand(PropertyValueImpl operand)

Creates a new property value operand.

Parameters:

operand - the QOM operand.

Method Detail

getPropertyState

public final PropertyState getPropertyState(ScoreNode sn,
                                            EvaluationContext context)
                                     throws RepositoryException

Returns the property state for the given score node or null if none exists.

Parameters:

sn - the current score node.

context - the evaluation context.

Returns:

the property state or null.

Throws:

RepositoryException - if an error occurs while reading.

getProperty

public final Property getProperty(ScoreNode sn,
                                  EvaluationContext context)
                           throws RepositoryException

Returns the property for the given score node or null if none exists.

Parameters:

sn - the current score node.

context - the evaluation context.

Returns:

the property or null.

Throws:

RepositoryException - if an error occurs while reading.

getValues

public 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.

Specified by:

getValues in class DynamicOperand

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.