AENull Class Reference

A class that represents a NULL value. More...

Inherits AETerminalExprT< AEValueExpr >.

List of all members.

Public Member Functions

virtual void AcceptVisitor (AENodeVisitor &in_visitor)
 Calls the correct method on the visitor.
 AENull (const AENull &in_other)
 Copy constructor.
 AENull ()
 Constructor.
virtual AENullClone () const
 Creates a clone of this node object.
virtual simba_wstring GetLogString () const
 Returns a string name for this node for the purpose of logging.
virtual SqlTypeMetadataGetMetadata () const
 Returns a SqlTypeMetadata* describing the column.
virtual AENodeType GetNodeType () const
 Returns an integer that uniquely identifies the node class.
virtual ~AENull ()
 Destructor.

Detailed Description

A class that represents a NULL value.

There is no real metadata associated with this node.

Will always have no children (GetChildCount() returns 0).


Constructor & Destructor Documentation

AENull (  ) 

Constructor.

AENull ( const AENull in_other  ) 

Copy constructor.

To support "cloning". See Clone() method.

Parameters:
in_other The other node to create copy from.
virtual ~AENull (  )  [virtual]

Destructor.


Member Function Documentation

virtual void AcceptVisitor ( AENodeVisitor in_visitor  )  [virtual]

Calls the correct method on the visitor.

Parameters:
in_visitor The visiting object.

Implements AENode.

virtual AENull* Clone (  )  const [virtual]

Creates a clone of this node object.

Returns:
A clone of this node object. (OWN)

Implements AEValueExpr.

virtual simba_wstring GetLogString (  )  const [virtual]

Returns a string name for this node for the purpose of logging.

Returns:
A string representation of this node for logging purposes.

Implements AENode.

virtual SqlTypeMetadata* GetMetadata (  )  const [virtual]

Returns a SqlTypeMetadata* describing the column.

Exceptions:
SEInvalidOperationException 
Returns:
A SqlTypeMetadata* object describing the column. (NOT OWN)

Reimplemented from AEValueExpr.

virtual AENodeType GetNodeType (  )  const [virtual]

Returns an integer that uniquely identifies the node class.

See the definition of AENodeType for values defined.

Returns:
The ID that uniquely identifies this type of nodes.

Implements AENode.


The documentation for this class was generated from the following file:

Generated on Wed May 17 14:21:17 2017 for SimbaEngine 10.1.3.1011 by simba