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/*
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* $Rev$ $Date: 2005/12/22 16:54:15 $ */
#ifndef _EQUALITYHELPER_H_
#define _EQUALITYHELPER_H_
#include "commonj/sdo/RefCountingPointer.h"
namespace commonj{
namespace sdo{
/**
* EqualityHelper provides static helper methods for equals.
* equalsShallow compares the DataType properties of the
* two data objects.
* equals performs a check on all the memebers and verifies that
* the same data objects are children.
*/
class EqualityHelper
{
public:
/**
* Shallow compare of DataObjects
*
* Compares two DataObjects for each property where
* property.getType().isDataObjectType() is false.
* Compares dataObject1.get(property).equals(dataObject2.get(property))
* Properties where property.getType().isDataObjectType() is true
* are not compared.
* DataObjects must have the same type
* dataObject1.getType() == dataObject2.getType()
* Returns true if all values of all compared properties are equal.
* @param dataObject1 DataObject to be compared
* @param dataObject2 DataObject to be compared
* @return true if equal
*/
static SDO_API bool equalShallow(DataObjectPtr dataObject1, DataObjectPtr dataObject2);
/**
* Deep compare of DataObjects
* Compares dataObject1 and dataObject2 and all their contained
* DataObjects (property.isContainment() is true) recursively.
* Values of properties are comapred as in isEqualShallow,
* and values of properties where
* property.getType().isDataObjectType() is true
* are compared where each value copied must be a corresponding
* DataObject contained by the source dataObject.
* The dataObject trees must be closed.
* If any DataObject referenced in either tree is not part of the
* containment trees an IllegalArgumentException is thrown.
* If a ChangeSummary is part of the tree they must contain an
* identical summary for their respective trees.
*
* @param dataObject1 DataObject to be compared
* @param dataObject2 DataObject to be compared
* @return true if all compared aspects of all compared objects are equal
* @throws IllegalArgumentException if any referenced DataObject
* is not part of the containment trees.
*/
static SDO_API bool equal(DataObjectPtr dataObject1, DataObjectPtr dataObject2);
private:
static bool internalEqual(DataObjectPtr dataObject1,
DataObjectPtr dataObject2,
bool fullEqual);
static bool comparelist(DataObjectList& to, DataObjectList& from, Type::Types t);
static bool compareitem(DataObjectPtr to, DataObjectPtr from, const Property& p);
};
};
};
#endif //_EQUALITYHELPER_H_
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