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// Copyright (C) 2010 The Android Open Source Project
//
// 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 com.google.gerrit.server.query.change;
import com.google.gerrit.index.IndexConfig;
import com.google.gerrit.index.query.AndSource;
import com.google.gerrit.index.query.IsVisibleToPredicate;
import com.google.gerrit.index.query.Predicate;
import java.util.Collection;
import java.util.List;
public class AndChangeSource extends AndSource<ChangeData> implements ChangeDataSource {
public AndChangeSource(Collection<Predicate<ChangeData>> that, IndexConfig indexConfig) {
super(that, indexConfig);
}
public AndChangeSource(
Predicate<ChangeData> that,
IsVisibleToPredicate<ChangeData> isVisibleToPredicate,
int start,
IndexConfig indexConfig) {
super(that, isVisibleToPredicate, start, indexConfig);
}
@Override
public boolean hasChange() {
return source instanceof ChangeDataSource && ((ChangeDataSource) source).hasChange();
}
@Override
protected List<ChangeData> transformBuffer(List<ChangeData> buffer) {
if (!hasChange()) {
ChangeData.ensureChangeLoaded(buffer);
}
return super.transformBuffer(buffer);
}
@Override
public int compare(Predicate<ChangeData> a, Predicate<ChangeData> b) {
int cmp = super.compare(a, b);
if (cmp == 0 && a instanceof ChangeDataSource && b instanceof ChangeDataSource) {
ChangeDataSource as = (ChangeDataSource) a;
ChangeDataSource bs = (ChangeDataSource) b;
cmp = (as.hasChange() ? 0 : 1) - (bs.hasChange() ? 0 : 1);
}
return cmp;
}
}
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