org.codehaus.groovy.ast.expr
Class ConstantExpression

java.lang.Object
  org.codehaus.groovy.ast.ASTNode
      org.codehaus.groovy.ast.expr.Expression
          org.codehaus.groovy.ast.expr.ConstantExpression

Direct Known Subclasses:

AnnotationConstantExpression

public class ConstantExpression
extends Expression

Represents a constant expression such as null, true, false

Version:

$Revision: 12194 $

Author:

James Strachan

Field Summary

static ConstantExpression	EMPTY_STRING
static ConstantExpression	EMTPY_EXPRESSION
static ConstantExpression	FALSE
static ConstantExpression	NULL
static ConstantExpression	TRUE
static ConstantExpression	VOID

Constructor Summary

ConstantExpression(Object value)

Method Summary

String	getConstantName()
String	getText()
Object	getValue()
boolean	isEmptyStringExpression()
boolean	isFalseExpression()
boolean	isNullExpression()
boolean	isTrueExpression()
void	setConstantName(String constantName)
String	toString()
Expression	transformExpression(ExpressionTransformer transformer) Return a copy of the expression calling the transformer on any nested expressions
void	visit(GroovyCodeVisitor visitor)

Methods inherited from class org.codehaus.groovy.ast.expr.Expression

getType, setType, transformExpressions

Methods inherited from class org.codehaus.groovy.ast.ASTNode

getColumnNumber, getLastColumnNumber, getLastLineNumber, getLineNumber, setColumnNumber, setLastColumnNumber, setLastLineNumber, setLineNumber, setSourcePosition

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

NULL

public static final ConstantExpression NULL

TRUE

public static final ConstantExpression TRUE

FALSE

public static final ConstantExpression FALSE

EMPTY_STRING

public static final ConstantExpression EMPTY_STRING

VOID

public static final ConstantExpression VOID

EMTPY_EXPRESSION

public static final ConstantExpression EMTPY_EXPRESSION

Constructor Detail

ConstantExpression

public ConstantExpression(Object value)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

visit

public void visit(GroovyCodeVisitor visitor)

Overrides:

visit in class ASTNode

transformExpression

public Expression transformExpression(ExpressionTransformer transformer)

Description copied from class: Expression

Return a copy of the expression calling the transformer on any nested expressions

Specified by:

transformExpression in class Expression

getValue

public Object getValue()

Returns:

the value of this constant expression

getText

public String getText()

Overrides:

getText in class ASTNode

getConstantName

public String getConstantName()

setConstantName

public void setConstantName(String constantName)

isNullExpression

public boolean isNullExpression()

isTrueExpression

public boolean isTrueExpression()

isFalseExpression

public boolean isFalseExpression()

isEmptyStringExpression

public boolean isEmptyStringExpression()