org.datamanager.constraint
Class AttributeNameEqualsConstraint

java.lang.Object
  |
  +--org.datamanager.kernel.AbstractEntityConstraint
        |
        +--org.datamanager.constraint.AttributeNameEqualsConstraint

All Implemented Interfaces:

Constraint, EntityConstraint, EntityValue, Serializable

public class AttributeNameEqualsConstraint

extends AbstractEntityConstraint

Selects for Entities which have attributes of a specified name which equal a specified string.

Author:

Matt Liggett

See Also:

Serialized Form

Field Summary

Fields inherited from class org.datamanager.kernel.AbstractEntityConstraint

DEBUG_ACCEPTS_MESSAGE

Fields inherited from interface org.datamanager.constraint.EntityConstraint

NONE

Constructor Summary

AttributeNameEqualsConstraint(String attributeName, String matchValue)
Creates a new AttributeNameEqualstConstraint which matches Entities which have StringEntityValue attributes whose name is attributeName and whose value equals matchValue.

Method Summary

protected boolean

describes(Entity entity) The method required by this class.

Methods inherited from class org.datamanager.kernel.AbstractEntityConstraint

accepts

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeNameEqualsConstraint

public AttributeNameEqualsConstraint(String attributeName,
                                     String matchValue)

Creates a new AttributeNameEqualstConstraint which matches Entities which have StringEntityValue attributes whose name is attributeName and whose value equals matchValue.

Method Detail

describes

protected boolean describes(Entity entity)
                     throws DataManagerException

Description copied from class: AbstractEntityConstraint

The method required by this class. This method has the exact same semantics as the interface EntityConstraint's accepts() method.

Specified by:

describes in class AbstractEntityConstraint

Parameters:

entity - An entity to check.

Returns:

Whether the entity is acceptable or not.

DataManagerException