/***********************************************************************************************************************
* Copyright (C) 2010-2013 by the Stratosphere project (http://stratosphere.eu)
*
* 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.
**********************************************************************************************************************/
package eu.stratosphere.pact.runtime.test.util;
import java.io.IOException;
import java.util.Iterator;
import eu.stratosphere.types.Record;
import eu.stratosphere.util.MutableObjectIterator;
/**
*
*/
public class MutableObjectIteratorWrapper implements MutableObjectIterator<Record>
{
private final Iterator<Record> source;
public MutableObjectIteratorWrapper(Iterator<Record> source)
{
this.source = source;
}
@Override
public Record next(Record reuse) throws IOException {
if (this.source.hasNext()) {
this.source.next().copyTo(reuse);
return reuse;
}
else {
return null;
}
}
}