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// Copyright 2015 Google Inc. All rights reserved.
//
// 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.devtools.build.lib.query2.engine;
import com.google.common.base.Preconditions;
import java.util.Set;
/**
* The result of a query evaluation, containing a set of elements.
*
* @param <T> the node type of the elements.
*/
public class QueryEvalResult<T> {
protected final boolean success;
protected final Set<T> resultSet;
public QueryEvalResult(
boolean success, Set<T> resultSet) {
this.success = success;
this.resultSet = Preconditions.checkNotNull(resultSet);
}
/**
* Whether the query was successful. This can only be false if the query was run with
* <code>keep_going</code>, otherwise evaluation will throw a {@link QueryException}.
*/
public boolean getSuccess() {
return success;
}
/**
* Returns the result as a set of targets.
*/
public Set<T> getResultSet() {
return resultSet;
}
@Override
public String toString() {
return (getSuccess() ? "Successful" : "Unsuccessful") + ", result size = "
+ getResultSet().size() + ", " + getResultSet();
}
}
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