/**
* Copyright 2009 the original author or authors.
*
* 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 net.sf.katta.lib.mapfile;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import org.apache.hadoop.io.ArrayWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
/**
* This class provides a way to return a list of Text objects via Hadoop RPC. It
* provides a zero-arg constructor, which Hadoop RPC requires for return types.
*/
public class TextArrayWritable implements Writable {
public ArrayWritable array;
@SuppressWarnings("unchecked")
public TextArrayWritable() {
this(Collections.EMPTY_LIST);
}
public TextArrayWritable(List<Text> texts) {
array = new ArrayWritable(Text.class, texts.toArray(new Writable[texts.size()]));
}
public void readFields(DataInput in) throws IOException {
array.readFields(in);
}
public void write(DataOutput out) throws IOException {
array.write(out);
}
}