| /********************************************************************** |
| // @@@ START COPYRIGHT @@@ |
| // |
| // 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. |
| // |
| // @@@ END COPYRIGHT @@@ |
| **********************************************************************/ |
| #ifndef ELEMDDLREFERENCES_H |
| #define ELEMDDLREFERENCES_H |
| /* -*-C++-*- |
| ***************************************************************************** |
| * |
| * File: ElemDDLReferences.h |
| * Description: class for referenced table and columns in REFERENCES |
| * clause in referential integrity constraint definitions |
| * in DDL statements |
| * |
| * |
| * Created: 3/29/95 |
| * Language: C++ |
| * |
| * |
| * |
| * |
| ***************************************************************************** |
| */ |
| |
| |
| #include "ElemDDLNode.h" |
| #include "ObjectNames.h" |
| // ----------------------------------------------------------------------- |
| // contents of this file |
| // ----------------------------------------------------------------------- |
| class ElemDDLReferences; |
| |
| // ----------------------------------------------------------------------- |
| // forward references |
| // ----------------------------------------------------------------------- |
| // None. |
| |
| // ----------------------------------------------------------------------- |
| // Referenced table and columns in Referential Integrity Constraint |
| // Definition elements in DDL statements. |
| // ----------------------------------------------------------------------- |
| class ElemDDLReferences : public ElemDDLNode |
| { |
| |
| public: |
| |
| // default constructor |
| ElemDDLReferences(const QualifiedName & referencedTableName, |
| ElemDDLNode * pReferencedColumnList = NULL) |
| : ElemDDLNode(ELM_REFERENCES_ELEM), |
| referencedTableQualName_(referencedTableName, PARSERHEAP()) |
| { |
| setChild(INDEX_REFERENCED_COLUMN_LIST, pReferencedColumnList); |
| } |
| |
| // virtual destructor |
| virtual ~ElemDDLReferences(); |
| |
| // cast |
| virtual ElemDDLReferences * castToElemDDLReferences(); |
| |
| // accessors |
| virtual Int32 getArity() const; |
| virtual ExprNode * getChild(Lng32 index); |
| inline ElemDDLNode * getReferencedColumns() const; |
| |
| NAString getReferencedTableName() const; |
| |
| // returns the externally-formatted name of the |
| // referenced table. If this routine is invoked |
| // after the parse node is bound, the returned |
| // name is guaranteed to be fully-expanded. |
| |
| inline const QualifiedName & getReferencedNameAsQualifiedName() const; |
| inline QualifiedName & getReferencedNameAsQualifiedName(); |
| |
| // mutators |
| virtual void setChild(Lng32 index, ExprNode * pElemDDLNode); |
| |
| // methods for tracing |
| virtual const NAString displayLabel1() const; |
| virtual NATraceList getDetailInfo() const; |
| virtual const NAString getText() const; |
| |
| // methods for processing |
| virtual ExprNode * bindNode(BindWA *pBindWA); |
| |
| |
| private: |
| |
| // --------------------------------------------------------------------- |
| // private methods |
| // --------------------------------------------------------------------- |
| |
| ElemDDLReferences(); // DO NOT USE |
| ElemDDLReferences(const NAString & referencedTableName, // DO NOT USE |
| ElemDDLNode * pReferencedColumnList = NULL); |
| ElemDDLReferences(const ElemDDLReferences &); // DO NOT USE |
| ElemDDLReferences & operator=(const ElemDDLReferences &); // DO NOT USE |
| |
| // --------------------------------------------------------------------- |
| // private data members |
| // --------------------------------------------------------------------- |
| |
| QualifiedName referencedTableQualName_; |
| |
| // pointer to child parse node |
| |
| enum { INDEX_REFERENCED_COLUMN_LIST = 0, |
| MAX_ELEM_DDL_REFERENCES_ARITY }; |
| |
| ElemDDLNode * children_[MAX_ELEM_DDL_REFERENCES_ARITY]; |
| |
| }; // class ElemDDLReferences |
| |
| // ----------------------------------------------------------------------- |
| // definitions of inline methods for class ElemDDLReferences |
| // ----------------------------------------------------------------------- |
| // |
| // accessors |
| // |
| |
| inline QualifiedName & |
| ElemDDLReferences::getReferencedNameAsQualifiedName() |
| { |
| return referencedTableQualName_; |
| } |
| |
| inline const QualifiedName & |
| ElemDDLReferences::getReferencedNameAsQualifiedName() const |
| { |
| return referencedTableQualName_; |
| } |
| |
| inline ElemDDLNode * |
| ElemDDLReferences::getReferencedColumns() const |
| { |
| return children_[INDEX_REFERENCED_COLUMN_LIST]; |
| } |
| |
| #endif // ELEMDDLREFERENCES_H |