com.quadcap.sql.ParameterExpression Class Reference

Inheritance diagram for com.quadcap.sql.ParameterExpression:

Detailed Description

Expression implementing JDBC run-time parameters (e.g., "?").

Definition at line 52 of file ParameterExpression.java.

Public Member Functions

ParameterExpression ()

int rank ()

Returns zero if this is a scalar expression, one if it's a vector type and 2 if it's a table/cursor type.

Value getValue (Session session, Cursor cursor)

If this is a scalar, return its value.

Type getType (Session session, Cursor cursor)

Return the expression's type if known.

void setValue (Value value)

void invert ()

Negate the logical value of the expression.

void visitSubExpressions (ExpressionVisitor ev)

Give a visitor access to the parse tree.

String toString ()

Package Attributes

Value value

void com.quadcap.sql.ParameterExpression.invert ( )

Negate the logical value of the expression.

Reimplemented from com.quadcap.sql.Expression.
Definition at line 72 of file ParameterExpression.java.

int com.quadcap.sql.ParameterExpression.rank ( ) [virtual]

Returns zero if this is a scalar expression, one if it's a vector type and 2 if it's a table/cursor type.

Implements com.quadcap.sql.Expression.
Definition at line 58 of file ParameterExpression.java.

String com.quadcap.sql.ParameterExpression.toString ( ) [virtual]

Implements com.quadcap.sql.Expression.
Definition at line 80 of file ParameterExpression.java.


Public Member Functions
	ParameterExpression ()
int	rank ()
	Returns zero if this is a scalar expression, one if it's a vector type and 2 if it's a table/cursor type.
Value	getValue (Session session, Cursor cursor)
	If this is a scalar, return its value.
Type	getType (Session session, Cursor cursor)
	Return the expression's type if known.
void	setValue (Value value)
void	invert ()
	Negate the logical value of the expression.
void	visitSubExpressions (ExpressionVisitor ev)
	Give a visitor access to the parse tree.
String	toString ()
Package Attributes
Value	value