org.springframework.expression.spel.ast

Class Operator

java.lang.Object

org.springframework.expression.spel.ast.SpelNodeImpl

org.springframework.expression.spel.ast.Operator

All Implemented Interfaces:

SpelNode

Direct Known Subclasses:

OpAnd, OpDec, OpDivide, OpEQ, OperatorBetween, OperatorInstanceof, OperatorMatches, OperatorPower, OpGE, OpGT, OpInc, OpLE, OpLT, OpMinus, OpModulus, OpMultiply, OpNE, OpOr, OpPlus

public abstract class Operator
extends SpelNodeImpl

Common supertype for operators that operate on either one or two operands. In the case of multiply or divide there would be two operands, but for unary plus or minus, there is only one.

Since:

3.0

Author:

Andy Clement, Juergen Hoeller, Giovanni Dall'Oglio Risso

Field Summary

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

children, pos

Constructor Summary

Constructors

Constructor and Description
Operator(String payload, int pos, SpelNodeImpl... operands)

Method Summary

Modifier and Type	Method and Description
protected boolean	equalityCheck(ExpressionState state, Object left, Object right)
SpelNodeImpl	getLeftOperand()
String	getOperatorName()
SpelNodeImpl	getRightOperand()
String	toStringAST() String format for all operators is the same '(' [operand] [operator] [operand] ')'

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

Operator

public Operator(String payload,
                int pos,
                SpelNodeImpl... operands)

Method Detail

getLeftOperand

public SpelNodeImpl getLeftOperand()

getRightOperand

public SpelNodeImpl getRightOperand()

getOperatorName

public final String getOperatorName()

toStringAST

public String toStringAST()

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

Returns:

the string form of this AST node

equalityCheck

protected boolean equalityCheck(ExpressionState state,
                                Object left,
                                Object right)