Quadcap Embeddable Database

com.quadcap.sql.NameExpression Class Reference

Inheritance diagram for com.quadcap.sql.NameExpression:

List of all members.

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Detailed Description

Expression class for names (typically column or function names).

Author:

Stan Bailes

Definition at line 63 of file NameExpression.java.

Public Member Functions
	NameExpression ()
	Default constructor.
	NameExpression (String name)
int	rank ()
	I'm a scalar, basically.
Type	getType (Session session, Cursor cursor) throws SQLException
	Return the expression's type if known.
Value	getValue (Session session, Cursor cursor) throws SQLException
	If this is a scalar, return its value.
Row	getValues (Session session, Cursor cursor) throws SQLException
	If this is a vector, return the value.
String	getName ()
void	invert ()
	Negate the logical value of the expression.
void	visitSubExpressions (ExpressionVisitor ev)
	Give a visitor access to the parse tree.
void	readExternal (ObjectInput in) throws IOException, ClassNotFoundException
void	writeExternal (ObjectOutput out) throws IOException
String	toString ()
Package Attributes
String	name
boolean	not = false

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Constructor & Destructor Documentation

com.quadcap.sql.NameExpression.NameExpression (   )

Default constructor. Definition at line 70 of file NameExpression.java.

com.quadcap.sql.NameExpression.NameExpression (  String  name  )

Definition at line 72 of file NameExpression.java.

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Member Function Documentation

String com.quadcap.sql.NameExpression.getName (   )

Reimplemented from com.quadcap.sql.Expression. Definition at line 118 of file NameExpression.java. References com.quadcap.sql.NameExpression.name. Referenced by com.quadcap.sql.IndexCursor.doOneBound(), com.quadcap.sql.IndexCursor.getCursorRange(), and com.quadcap.sql.SelectExpression.optimizeAggregate().

Type com.quadcap.sql.NameExpression.getType (  Session  session, Cursor  cursor )  throws SQLException [virtual]

Return the expression's type if known. Implements com.quadcap.sql.Expression. Definition at line 81 of file NameExpression.java. References com.quadcap.sql.Column.getType(), com.quadcap.sql.NameExpression.getType(), and com.quadcap.sql.NameExpression.name. Referenced by com.quadcap.sql.NameExpression.getType().

Value com.quadcap.sql.NameExpression.getValue (  Session  session, Cursor  cursor )  throws SQLException

If this is a scalar, return its value. Reimplemented from com.quadcap.sql.Expression. Definition at line 87 of file NameExpression.java. References com.quadcap.sql.Column.getColumn(), com.quadcap.sql.Tuple.getColumn(), com.quadcap.sql.Column.getRelation(), com.quadcap.sql.Cursor.getRow(), com.quadcap.sql.NameExpression.getValue(), com.quadcap.sql.Row.item(), com.quadcap.sql.NameExpression.name, com.quadcap.sql.NameExpression.not, and com.quadcap.sql.types.Value.unop(). Referenced by com.quadcap.sql.NameExpression.getValue().

Row com.quadcap.sql.NameExpression.getValues (  Session  session, Cursor  cursor )  throws SQLException

If this is a vector, return the value. Reimplemented from com.quadcap.sql.Expression. Definition at line 112 of file NameExpression.java. References com.quadcap.sql.NameExpression.getValues(). Referenced by com.quadcap.sql.NameExpression.getValues().

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

Negate the logical value of the expression. Reimplemented from com.quadcap.sql.Expression. Definition at line 120 of file NameExpression.java. References com.quadcap.sql.NameExpression.not.

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

I'm a scalar, basically. Implements com.quadcap.sql.Expression. Definition at line 79 of file NameExpression.java.

void com.quadcap.sql.NameExpression.readExternal (  ObjectInput  in  )  throws IOException, ClassNotFoundException

Definition at line 127 of file NameExpression.java. References com.quadcap.sql.NameExpression.name, and com.quadcap.sql.NameExpression.readExternal(). Referenced by com.quadcap.sql.NameExpression.readExternal().

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

Implements com.quadcap.sql.Expression. Definition at line 137 of file NameExpression.java. References com.quadcap.sql.NameExpression.name.

void com.quadcap.sql.NameExpression.visitSubExpressions (  ExpressionVisitor  ev  )

Give a visitor access to the parse tree. Reimplemented from com.quadcap.sql.Expression. Definition at line 124 of file NameExpression.java. References com.quadcap.sql.NameExpression.visitSubExpressions(). Referenced by com.quadcap.sql.NameExpression.visitSubExpressions().

void com.quadcap.sql.NameExpression.writeExternal (  ObjectOutput  out  )  throws IOException

Definition at line 133 of file NameExpression.java. References com.quadcap.sql.NameExpression.name, and com.quadcap.sql.NameExpression.writeExternal(). Referenced by com.quadcap.sql.NameExpression.writeExternal().

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Member Data Documentation

String com.quadcap.sql.NameExpression.name [package]

Definition at line 64 of file NameExpression.java. Referenced by com.quadcap.sql.NameExpression.getName(), com.quadcap.sql.NameExpression.getType(), com.quadcap.sql.NameExpression.getValue(), com.quadcap.sql.Analyze.isJoinExpression(), com.quadcap.sql.NameExpression.readExternal(), com.quadcap.sql.Analyze.refersTo(), com.quadcap.sql.NameExpression.toString(), and com.quadcap.sql.NameExpression.writeExternal().

boolean com.quadcap.sql.NameExpression.not = false [package]

Definition at line 65 of file NameExpression.java. Referenced by com.quadcap.sql.NameExpression.getValue(), and com.quadcap.sql.NameExpression.invert().