core/sql/parser/StmtDDLAlterTableColumn.h

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#ifndef STMTDDLALTERTABLECOLUMN_H
#define STMTDDLALTERTABLECOLUMN_H
/* -*-C++-*-
 *****************************************************************************
 *
 * File:         StmtDDLAlterTableColumn.h
 * Description:  class for Alter Table <table-name> Column <column-name>
 *               DDL statements
 *
 *               The methods in this class are defined either in this
 *               header file or the source file StmtDDLAlter.C.
 *
 *               
 * Created:      9/19/95
 * Language:     C++
 *
 *
 *
 *
 *****************************************************************************
 */


#include "StmtDDLAlterTable.h"

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

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

// -----------------------------------------------------------------------
// definition of class StmtDDLAlterTableColumn
// -----------------------------------------------------------------------
class StmtDDLAlterTableColumn : public StmtDDLAlterTable
{

public:

  // constructor
  StmtDDLAlterTableColumn(const NAString & columnName,
                                 ElemDDLNode *pColumnHeadingNode,
                                 CollHeap * h=0)
  : StmtDDLAlterTable(DDL_ALTER_TABLE_COLUMN,
                    QualifiedName(h) /*no table name*/,
                    pColumnHeadingNode),
  columnName_(columnName, h)
  { }


  // copy ctor
  StmtDDLAlterTableColumn (const StmtDDLAlterTableColumn & orig,
                           CollHeap * h=0) ;

  // virtual destructor
  virtual ~StmtDDLAlterTableColumn();

  // cast
  virtual StmtDDLAlterTableColumn * castToStmtDDLAlterTableColumn();

  // accessors
  inline ElemDDLColHeading * getColumnHeading() const;
  inline const NAString & getColumnName() const;

  // method for tracing
  virtual const NAString getText() const;


private:

  NAString columnName_;

}; // class StmtDDLAlterTableColumn

// -----------------------------------------------------------------------
// definitions of inline methods for class StmtDDLAlterTableColumn
// -----------------------------------------------------------------------

inline
ElemDDLColHeading *
StmtDDLAlterTableColumn::getColumnHeading() const
{
  return getAlterTableAction()->castToElemDDLColHeading();
}

inline
const NAString &
StmtDDLAlterTableColumn::getColumnName() const
{
  return columnName_;
}

#endif // STMTDDLALTERTABLECOLUMN_H