/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.supplement;
import org.waveprotocol.wave.model.id.WaveletId;
import org.waveprotocol.wave.model.version.HashedVersion;
import java.util.Map;
/**
* Defines the aspects of a wave view in which {@link SupplementedWaveImpl}
* is interested.
*
*/
// TODO(anorth, hearnden): Replace wavelet ids with string conversation ids.
public interface SupplementWaveView {
/**
* @return the ids of all conversational wavelets.
*/
Iterable<WaveletId> getWavelets();
/**
* @return the current version of a wavelet.
*/
long getVersion(WaveletId id);
/**
* @return the signature hash of the specified wavelet
* at its current version.
*/
HashedVersion getSignature(WaveletId id);
/**
* @param id The id of the wavelet to get blip versions for.
* @return The version of each blip in the wavelet with id, ignoring blips
* which are deleted.
*/
Map<String, Long> getBlipVersions(WaveletId id);
/**
* @return true if the account viewing this wave is listed as an explicit
* participant.
*/
boolean isExplicitParticipant();
}