fullstack/algebricks/algebricks-core/src/main/java/edu/uci/ics/hyracks/algebricks/core/algebra/operators/logical/IOperatorExtension.java

/*
 * Copyright 2009-2010 by The Regents of the University of California
 * 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 from
 * 
 *     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 edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical;

import java.util.Collection;
import java.util.List;

import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException;
import edu.uci.ics.hyracks.algebricks.core.algebra.base.IPhysicalOperator;
import edu.uci.ics.hyracks.algebricks.core.algebra.base.LogicalVariable;
import edu.uci.ics.hyracks.algebricks.core.algebra.operators.logical.AbstractLogicalOperator.ExecutionMode;
import edu.uci.ics.hyracks.algebricks.core.algebra.visitors.ILogicalExpressionReferenceTransform;

/**
 * @author rico
 */
public interface IOperatorExtension {

    void setExecutionMode(ExecutionMode mode);

    boolean isMap();

    public IOperatorExtension newInstance();

    boolean acceptExpressionTransform(ILogicalExpressionReferenceTransform transform) throws AlgebricksException;

    void setSchema(List<LogicalVariable> schema);

    IPhysicalOperator getPhysicalOperator();

    void setPhysicalOperator(IPhysicalOperator physicalOperator);

    ExecutionMode getExecutionMode();
    
    public void getUsedVariables(Collection<LogicalVariable> usedVars);
    
    public void getProducedVariables(Collection<LogicalVariable> producedVars);
}