org.codehaus.groovy.ast.expr
Class ConstantExpression

java.lang.Object
  extended by org.codehaus.groovy.ast.ASTNode
      extended by org.codehaus.groovy.ast.expr.Expression
          extended by 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
private  java.lang.String constantName
           
static ConstantExpression EMPTY_STRING
           
static ConstantExpression EMTPY_EXPRESSION
           
static ConstantExpression FALSE
           
static ConstantExpression NULL
           
static ConstantExpression TRUE
           
private  java.lang.Object value
           
static ConstantExpression VOID
           
 
Constructor Summary
ConstantExpression(java.lang.Object value)
           
 
Method Summary
 java.lang.String getConstantName()
           
 java.lang.String getText()
           
 java.lang.Object getValue()
           
 boolean isEmptyStringExpression()
           
 boolean isFalseExpression()
           
 boolean isNullExpression()
           
 boolean isTrueExpression()
           
 void setConstantName(java.lang.String constantName)
           
 java.lang.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

value

private java.lang.Object value

constantName

private java.lang.String constantName
Constructor Detail

ConstantExpression

public ConstantExpression(java.lang.Object value)
Method Detail

toString

public java.lang.String toString()
Overrides:
toString in class java.lang.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 java.lang.Object getValue()
Returns:
the value of this constant expression

getText

public java.lang.String getText()
Overrides:
getText in class ASTNode

getConstantName

public java.lang.String getConstantName()

setConstantName

public void setConstantName(java.lang.String constantName)

isNullExpression

public boolean isNullExpression()

isTrueExpression

public boolean isTrueExpression()

isFalseExpression

public boolean isFalseExpression()

isEmptyStringExpression

public boolean isEmptyStringExpression()


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