org.apache.phoenix.execute.visitor.QueryPlanVisitor Maven / Gradle / Ivy
/*
* 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.phoenix.execute.visitor;
import org.apache.phoenix.compile.ListJarsQueryPlan;
import org.apache.phoenix.compile.QueryPlan;
import org.apache.phoenix.compile.TraceQueryPlan;
import org.apache.phoenix.execute.*;
/**
*
* Visitor for a QueryPlan (which may contain other nested query-plans)
*
*/
public interface QueryPlanVisitor {
E defaultReturn(QueryPlan plan);
E visit(AggregatePlan plan);
E visit(ScanPlan plan);
E visit(ClientAggregatePlan plan);
E visit(ClientScanPlan plan);
E visit(LiteralResultIterationPlan plan);
E visit(TupleProjectionPlan plan);
E visit(HashJoinPlan plan);
E visit(SortMergeJoinPlan plan);
E visit(UnionPlan plan);
E visit(UnnestArrayPlan plan);
E visit(CursorFetchPlan plan);
E visit(ListJarsQueryPlan plan);
E visit(TraceQueryPlan plan);
}