/**
* Copyright 2008 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.operation.wave;
import org.waveprotocol.wave.model.wave.data.BlipData;
/**
* Operation class for submitting a blip.
*
*/
public final class SubmitBlip extends InvertibleBlipOperation {
private static final int HASH = SubmitBlip.class.getName().hashCode();
/**
* Constructs a submit operation.
*/
public SubmitBlip(WaveletOperationContext context) {
super(context);
}
/**
* Applies to a target blip by submitting it.
*/
@Override
protected void doApply(BlipData target) {
target.submit();
}
@Override
protected void doUpdate(BlipData target) {
// Do nothing
}
@Override
public BlipOperation invert(WaveletOperationContext newContext) {
return new SubmitBlip(newContext);
}
@Override
public void acceptVisitor(BlipOperationVisitor visitor) {
visitor.visitSubmitBlip(this);
}
@Override
public boolean updatesBlipMetadata(String blipId) {
return false;
}
@Override
public String toString() {
return "submit";
}
@Override
public int hashCode() {
/*
* NOTE(user): We may be able to get rid of this hash function in the
* future if this class becomes a singleton.
*/
return HASH;
}
@Override
public boolean equals(Object obj) {
/*
* NOTE(user): We're ignoring context in equality comparison. The plan is
* to remove context from all operations in the future.
*/
return obj instanceof SubmitBlip;
}
}