org.springframework.expression.spel.ast

Class OpDec

java.lang.Object

org.springframework.expression.spel.ast.SpelNodeImpl

org.springframework.expression.spel.ast.Operator

org.springframework.expression.spel.ast.OpDec

All Implemented Interfaces:

SpelNode

public class OpDec
extends Operator

Decrement operator. Can be used in a prefix or postfix form. This will throw appropriate exceptions if the operand in question does not support decrement.

Since:

3.2

Author:

Andy Clement

Field Summary

Fields inherited from class org.springframework.expression.spel.ast.SpelNodeImpl

children, pos

Constructor Summary

Constructors

Constructor and Description
OpDec(int pos, boolean postfix, SpelNodeImpl... operands)

Method Summary

Methods

Modifier and Type	Method and Description
SpelNodeImpl	getRightOperand()
TypedValue	getValueInternal(ExpressionState state)
String	toStringAST() String format for all operators is the same '(' [operand] [operator] [operand] ')'

Methods inherited from class org.springframework.expression.spel.ast.Operator

getLeftOperand, getOperatorName

Methods inherited from class org.springframework.expression.spel.ast.SpelNodeImpl

getChild, getChildCount, getEndPosition, getObjectClass, getPreviousChild, getStartPosition, getTypedValue, getValue, getValue, getValueRef, isWritable, nextChildIs, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

OpDec

public OpDec(int pos,
     boolean postfix,
     SpelNodeImpl... operands)

Method Detail

getValueInternal

public TypedValue getValueInternal(ExpressionState state)
                            throws EvaluationException

Specified by:

getValueInternal in class SpelNodeImpl

Throws:

EvaluationException

toStringAST

public String toStringAST()

Description copied from class: Operator

String format for all operators is the same '(' [operand] [operator] [operand] ')'

Specified by:

toStringAST in interface SpelNode

Overrides:

toStringAST in class Operator

Returns:

the string form of this AST node

getRightOperand

public SpelNodeImpl getRightOperand()

Overrides:

getRightOperand in class Operator