StubDocumentFactory.java

/**
 * Copyright 2010 Google Inc.
 *
 * 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 org.waveprotocol.wave.model.wave.data.impl;

import org.waveprotocol.wave.model.document.operation.DocInitialization;
import org.waveprotocol.wave.model.id.WaveletId;
import org.waveprotocol.wave.model.wave.data.DocumentFactory;
import org.waveprotocol.wave.model.wave.data.DocumentOperationSink;

/**
 * Dummy {@link DocumentFactory} which throws
 * {@link UnsupportedOperationException} if invoked.
 *
 */
public class StubDocumentFactory implements DocumentFactory<DocumentOperationSink> {

  public static final StubDocumentFactory INSTANCE = new StubDocumentFactory();

  @Override
  public DocumentOperationSink create(WaveletId waveletId, String docId,
       DocInitialization content) {
    throw new UnsupportedOperationException(
        "Unsupported document creation attempt " + waveletId + ":" + docId);
  }
}