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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 16:54:14 $ */
#include "commonj/sdo/DataGraphImpl.h"
#include "commonj/sdo/DataObjectImpl.h"
#include "commonj/sdo/SDORuntimeException.h"
namespace commonj{
namespace sdo {
/**
* DataGraphImpl implements DataGraph.
* DataGraph holds a whole graph of data objects, starting from
* a single root. This class is not currently used in the C++
* implementation, but will be required by DAS implementations.
*/
DataGraphImpl::~DataGraphImpl()
{
}
DataGraphImpl::DataGraphImpl(DataFactoryPtr fac)
{
factory = fac;
root = 0;
}
DataObjectPtr DataGraphImpl::getRootObject()
{
return root;
}
const char* DataGraphImpl::getRootElementName()
{
if (root == 0) return 0;
return root->getInstanceProperties()[0].getName();
}
void DataGraphImpl::setRootObject(DataObjectPtr dob)
{
if (root != 0)
{
SDO_THROW_EXCEPTION("setRootObject",SDOUnsupportedOperationException,
"Root data object already exists");
}
root = dob;
}
DataObjectPtr DataGraphImpl::createRootObject(const char* uri,
const char* name)
{
if (root != 0)
{
SDO_THROW_EXCEPTION("createRootObject",SDOUnsupportedOperationException,
"Root data object already exists");
}
root = factory->create(uri,name);
if (root->getInstanceProperties()[0].getType().isDataType())
{
SDO_THROW_EXCEPTION("createRootObject",SDOUnsupportedOperationException,
"Root data object cannot have a datatype property at element 0");
}
return root;
}
DataObjectPtr DataGraphImpl::createRootObject(const Type& t)
{
if (root != 0)
{
SDO_THROW_EXCEPTION("createRootObject",SDOUnsupportedOperationException,
"Root data object already exists");
}
root = factory->create(t);
if (root->getInstanceProperties()[0].getType().isDataType())
{
SDO_THROW_EXCEPTION("createRootObject",SDOUnsupportedOperationException,
"Root data object cannot have a datatype property at element 0");
}
return root;
}
ChangeSummaryPtr DataGraphImpl::getChangeSummary()
{
if (!root) return 0;
return root->getChangeSummary();
}
const Type& DataGraphImpl::getType(const char* uri,
const char* name)
{
return factory->getType(uri,name);
}
};
};
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