| /** |
| * 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.tajo.engine.planner; |
| |
| import org.apache.tajo.algebra.*; |
| |
| import java.util.Stack; |
| |
| public interface AlgebraVisitor<CONTEXT, RESULT> { |
| // Relational Operators |
| RESULT visitProjection(CONTEXT ctx, Stack<Expr> stack, Projection expr) throws PlanningException; |
| RESULT visitLimit(CONTEXT ctx, Stack<Expr> stack, Limit expr) throws PlanningException; |
| RESULT visitSort(CONTEXT ctx, Stack<Expr> stack, Sort expr) throws PlanningException; |
| RESULT visitHaving(CONTEXT ctx, Stack<Expr> stack, Having expr) throws PlanningException; |
| RESULT visitGroupBy(CONTEXT ctx, Stack<Expr> stack, Aggregation expr) throws PlanningException; |
| RESULT visitJoin(CONTEXT ctx, Stack<Expr> stack, Join expr) throws PlanningException; |
| RESULT visitFilter(CONTEXT ctx, Stack<Expr> stack, Selection expr) throws PlanningException; |
| RESULT visitUnion(CONTEXT ctx, Stack<Expr> stack, SetOperation expr) throws PlanningException; |
| RESULT visitExcept(CONTEXT ctx, Stack<Expr> stack, SetOperation expr) throws PlanningException; |
| RESULT visitIntersect(CONTEXT ctx, Stack<Expr> stack, SetOperation expr) throws PlanningException; |
| RESULT visitSimpleTableSubQuery(CONTEXT ctx, Stack<Expr> stack, SimpleTableSubQuery expr) throws PlanningException; |
| RESULT visitTableSubQuery(CONTEXT ctx, Stack<Expr> stack, TablePrimarySubQuery expr) throws PlanningException; |
| RESULT visitRelationList(CONTEXT ctx, Stack<Expr> stack, RelationList expr) throws PlanningException; |
| RESULT visitRelation(CONTEXT ctx, Stack<Expr> stack, Relation expr) throws PlanningException; |
| RESULT visitScalarSubQuery(CONTEXT ctx, Stack<Expr> stack, ScalarSubQuery expr) throws PlanningException; |
| RESULT visitExplain(CONTEXT ctx, Stack<Expr> stack, Explain expr) throws PlanningException; |
| |
| // Data definition language |
| RESULT visitCreateDatabase(CONTEXT ctx, Stack<Expr> stack, CreateDatabase expr) throws PlanningException; |
| RESULT visitDropDatabase(CONTEXT ctx, Stack<Expr> stack, DropDatabase expr) throws PlanningException; |
| RESULT visitCreateTable(CONTEXT ctx, Stack<Expr> stack, CreateTable expr) throws PlanningException; |
| RESULT visitDropTable(CONTEXT ctx, Stack<Expr> stack, DropTable expr) throws PlanningException; |
| RESULT visitAlterTablespace(CONTEXT ctx, Stack<Expr> stack, AlterTablespace expr) throws PlanningException; |
| RESULT visitAlterTable(CONTEXT ctx, Stack<Expr> stack, AlterTable expr) throws PlanningException; |
| RESULT visitTruncateTable(CONTEXT ctx, Stack<Expr> stack, TruncateTable expr) throws PlanningException; |
| |
| // Insert or Update |
| RESULT visitInsert(CONTEXT ctx, Stack<Expr> stack, Insert expr) throws PlanningException; |
| |
| // Logical operators |
| RESULT visitAnd(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitOr(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitNot(CONTEXT ctx, Stack<Expr> stack, NotExpr expr) throws PlanningException; |
| |
| // comparison predicates |
| RESULT visitEquals(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitNotEquals(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitLessThan(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitLessThanOrEquals(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitGreaterThan(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitGreaterThanOrEquals(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| |
| // Other Predicates |
| RESULT visitBetween(CONTEXT ctx, Stack<Expr> stack, BetweenPredicate expr) throws PlanningException; |
| RESULT visitCaseWhen(CONTEXT ctx, Stack<Expr> stack, CaseWhenPredicate expr) throws PlanningException; |
| RESULT visitIsNullPredicate(CONTEXT ctx, Stack<Expr> stack, IsNullPredicate expr) throws PlanningException; |
| RESULT visitInPredicate(CONTEXT ctx, Stack<Expr> stack, InPredicate expr) throws PlanningException; |
| RESULT visitValueListExpr(CONTEXT ctx, Stack<Expr> stack, ValueListExpr expr) throws PlanningException; |
| RESULT visitExistsPredicate(CONTEXT ctx, Stack<Expr> stack, ExistsPredicate expr) throws PlanningException; |
| |
| // String Operator or Pattern Matching Predicates |
| RESULT visitLikePredicate(CONTEXT ctx, Stack<Expr> stack, PatternMatchPredicate expr) throws PlanningException; |
| RESULT visitSimilarToPredicate(CONTEXT ctx, Stack<Expr> stack, PatternMatchPredicate expr) throws PlanningException; |
| RESULT visitRegexpPredicate(CONTEXT ctx, Stack<Expr> stack, PatternMatchPredicate expr) throws PlanningException; |
| RESULT visitConcatenate(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| |
| // arithmetic operators |
| RESULT visitPlus(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitMinus(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitMultiply(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitDivide(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| RESULT visitModular(CONTEXT ctx, Stack<Expr> stack, BinaryOperator expr) throws PlanningException; |
| |
| // other expressions |
| RESULT visitSign(CONTEXT ctx, Stack<Expr> stack, SignedExpr expr) throws PlanningException; |
| RESULT visitColumnReference(CONTEXT ctx, Stack<Expr> stack, ColumnReferenceExpr expr) throws PlanningException; |
| RESULT visitTargetExpr(CONTEXT ctx, Stack<Expr> stack, NamedExpr expr) throws PlanningException; |
| RESULT visitQualifiedAsterisk(CONTEXT ctx, Stack<Expr> stack, QualifiedAsteriskExpr expr) throws PlanningException; |
| |
| // functions |
| RESULT visitFunction(CONTEXT ctx, Stack<Expr> stack, FunctionExpr expr) throws PlanningException; |
| RESULT visitGeneralSetFunction(CONTEXT ctx, Stack<Expr> stack, GeneralSetFunctionExpr expr) |
| throws PlanningException; |
| RESULT visitCountRowsFunction(CONTEXT ctx, Stack<Expr> stack, CountRowsFunctionExpr expr) throws PlanningException; |
| RESULT visitWindowFunction(CONTEXT ctx, Stack<Expr> stack, WindowFunctionExpr expr) throws PlanningException; |
| |
| // Literal |
| RESULT visitCastExpr(CONTEXT ctx, Stack<Expr> stack, CastExpr expr) throws PlanningException; |
| |
| RESULT visitDataType(CONTEXT ctx, Stack<Expr> stack, DataTypeExpr expr) throws PlanningException; |
| RESULT visitLiteral(CONTEXT ctx, Stack<Expr> stack, LiteralValue expr) throws PlanningException; |
| RESULT visitNullLiteral(CONTEXT ctx, Stack<Expr> stack, NullLiteral expr) throws PlanningException; |
| RESULT visitTimestampLiteral(CONTEXT ctx, Stack<Expr> stack, TimestampLiteral expr) throws PlanningException; |
| RESULT visitIntervalLiteral(CONTEXT ctx, Stack<Expr> stack, IntervalLiteral expr) throws PlanningException; |
| RESULT visitTimeLiteral(CONTEXT ctx, Stack<Expr> stack, TimeLiteral expr) throws PlanningException; |
| RESULT visitDateLiteral(CONTEXT ctx, Stack<Expr> stack, DateLiteral expr) throws PlanningException; |
| } |