core/sql/parser/StmtDDLAddConstraintUnique.h

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#ifndef STMTDDLADDCONSTRAINTUNIQUE_H
#define STMTDDLADDCONSTRAINTUNIQUE_H
/* -*-C++-*-
 *****************************************************************************
 *
 * File:         StmtDDLAddConstraintUnique.h
 * Description:  class for Alter Table <table-name> Add Constraint
 *               statements containing Unique clause
 *
 *               The proper name for this class should be
 *               StmtDDLAlterTableAddConstraintUnique because this class
 *               is derived from the base class StmtDDLAlterTable.  The
 *               name StmtDDLAlterTableAddConstraintUnique is too long
 *               however.  So the short name StmtDDLAddConstraintUnique
 *               is used even though it is less clear.
 *
 *               The methods in this class are defined either in this
 *               header file or the source file StmtDDLAlter.C.
 *
 *               
 * Created:      6/15/95
 * Language:     C++
 *
 *
 *
 *
 *****************************************************************************
 */


#include "StmtDDLAlterTable.h"
#include "StmtDDLAddConstraint.h"

// -----------------------------------------------------------------------
// contents of this file
// -----------------------------------------------------------------------
class StmtDDLAddConstraintUnique;

// -----------------------------------------------------------------------
// forward references
// -----------------------------------------------------------------------
// None.

// -----------------------------------------------------------------------
// definition of class StmtDDLAddConstraintUnique
// -----------------------------------------------------------------------
class StmtDDLAddConstraintUnique : public StmtDDLAddConstraint
{

public:

  // constructors
  StmtDDLAddConstraintUnique(ElemDDLNode * pElemDDLConstraintUnique)
  : StmtDDLAddConstraint(DDL_ALTER_TABLE_ADD_CONSTRAINT_UNIQUE,
                       pElemDDLConstraintUnique)
  { }

  StmtDDLAddConstraintUnique(const QualifiedName & tableQualName,
                                    ElemDDLNode * pElemDDLConstraintUnique)
  : StmtDDLAddConstraint(DDL_ALTER_TABLE_ADD_CONSTRAINT_UNIQUE,
                       tableQualName,
                       pElemDDLConstraintUnique)
  { }

  StmtDDLAddConstraintUnique(OperatorTypeEnum operatorType,
                                    ElemDDLNode * pElemDDLConstraintUnique)
  : StmtDDLAddConstraint(operatorType,
                       pElemDDLConstraintUnique)
  { }

  StmtDDLAddConstraintUnique(OperatorTypeEnum operatorType,
                                    const QualifiedName & tableQualName,
                                    ElemDDLNode * pElemDDLConstraintUnique)
  : StmtDDLAddConstraint(operatorType,
                       tableQualName,
                       pElemDDLConstraintUnique)
  { }

  // virtual destructor
  virtual ~StmtDDLAddConstraintUnique();

  // cast
  virtual StmtDDLAddConstraintUnique * castToStmtDDLAddConstraintUnique();

  // method for tracing
  virtual const NAString getText() const;
  
  // definition of method bindNode() for class StmtDDLAddConstraintUnique
  virtual ExprNode * bindNode(BindWA * pBindWA); 


private:

  // ---------------------------------------------------------------------
  // private methods
  // ---------------------------------------------------------------------

  StmtDDLAddConstraintUnique();                         // DO NOT USE
  StmtDDLAddConstraintUnique(const NAString & tableName,
                             ElemDDLNode *);            // DO NOT USE
  StmtDDLAddConstraintUnique(OperatorTypeEnum operatorType,
                             const NAString & tableName,
                             ElemDDLNode *);            // DO NOT USE
  StmtDDLAddConstraintUnique
        (const StmtDDLAddConstraintUnique &);           // DO NOT USE
  StmtDDLAddConstraintUnique & operator=
        (const StmtDDLAddConstraintUnique &);           // DO NOT USE
  
}; // class StmtDDLAddConstraintUnique


#endif // STMTDDLADDCONSTRAINTUNIQUE_H