org.apache.jackrabbit.oak.query.plan.SelectorExecutionPlan Maven / Gradle / Ivy
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* 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.apache.jackrabbit.oak.query.plan;
import org.apache.jackrabbit.oak.query.ast.SelectorImpl;
import org.apache.jackrabbit.oak.spi.query.QueryIndex;
import org.apache.jackrabbit.oak.spi.query.QueryIndex.IndexPlan;
/**
* An execution plan for one selector in a query. The conditions of the given
* selectors are compiled into a filter, and the execution plan for the selector
* is to use a certain query index, which will result in an estimated cost to
* use that index to retrieve nodes for this index.
*/
public class SelectorExecutionPlan implements ExecutionPlan {
private final SelectorImpl selector;
private final double estimatedCost;
private final QueryIndex index;
private final IndexPlan plan;
public SelectorExecutionPlan(SelectorImpl selector, QueryIndex index, IndexPlan plan, double estimatedCost) {
this.selector = selector;
this.index = index;
this.estimatedCost = estimatedCost;
this.plan = plan;
}
@Override
public double getEstimatedCost() {
return estimatedCost;
}
public SelectorImpl getSelector() {
return selector;
}
public QueryIndex getIndex() {
return index;
}
public IndexPlan getIndexPlan() {
return plan;
}
}