org.springframework.expression.spel.ast

Class OpMultiply

java.lang.Object

org.springframework.expression.spel.ast.SpelNodeImpl

org.springframework.expression.spel.ast.Operator

org.springframework.expression.spel.ast.OpMultiply

All Implemented Interfaces:

SpelNode

public class OpMultiply
extends Operator

Implements the multiply operator.

Conversions and promotions are handled as defined in Section 5.6.2 of the Java Language Specification, with the addiction of BigDecimal management:

If any of the operands is of a reference type, unboxing conversion (Section 5.1.8) is performed. Then:
If either operand is of type BigDecimal, the other is converted to BigDecimal.
If either operand is of type double, the other is converted to double.
Otherwise, if either operand is of type float, the other is converted to float.
Otherwise, if either operand is of type long, the other is converted to long.
Otherwise, both operands are converted to type int.

Since:

3.0

Author:

Andy Clement, Sam Brannen, Giovanni Dall'Oglio Risso

Field Summary

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

children, pos

Constructor Summary

Constructors

Constructor and Description
OpMultiply(int pos, SpelNodeImpl... operands)

Method Summary

Modifier and Type	Method and Description
TypedValue	getValueInternal(ExpressionState state) Implements the multiply operator directly here for certain types of supported operands and otherwise delegates to any registered overloader for types not supported here.

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

equalityCheck, getLeftOperand, getOperatorName, getRightOperand, toStringAST

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

OpMultiply

public OpMultiply(int pos,
                  SpelNodeImpl... operands)

Method Detail

getValueInternal

public TypedValue getValueInternal(ExpressionState state)
                            throws EvaluationException

Implements the multiply operator directly here for certain types of supported operands and otherwise delegates to any registered overloader for types not supported here.

Supported operand types:

• BigDecimal
• doubles
• longs
• integers
• String and int ('abc' * 2 == 'abcabc')

Specified by:

getValueInternal in class SpelNodeImpl

Throws:

EvaluationException