/* | |
* 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.visitors; | |
import edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.AggregateFunctionCallExpression; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ConstantExpression; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.ScalarFunctionCallExpression; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.StatefulFunctionCallExpression; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.UnnestingFunctionCallExpression; | |
import edu.uci.ics.hyracks.algebricks.core.algebra.expressions.VariableReferenceExpression; | |
public interface ILogicalExpressionVisitor<R, T> { | |
public R visitConstantExpression(ConstantExpression expr, T arg) throws AlgebricksException; | |
public R visitVariableReferenceExpression(VariableReferenceExpression expr, T arg) throws AlgebricksException; | |
public R visitAggregateFunctionCallExpression(AggregateFunctionCallExpression expr, T arg) | |
throws AlgebricksException; | |
public R visitScalarFunctionCallExpression(ScalarFunctionCallExpression expr, T arg) throws AlgebricksException; | |
public R visitStatefulFunctionCallExpression(StatefulFunctionCallExpression expr, T arg) throws AlgebricksException; | |
public R visitUnnestingFunctionCallExpression(UnnestingFunctionCallExpression expr, T arg) | |
throws AlgebricksException; | |
} |