org.noear.solon.expression.snel

Class ComparisonNode

java.lang.Object

org.noear.solon.expression.snel.ComparisonNode

All Implemented Interfaces:

Expression<Boolean>

public class ComparisonNode
extends Object
implements Expression<Boolean>

比较表达式节点（如 >, <, ==）

Since:

3.1

Author:

noear

Constructor Summary

Constructors

Constructor and Description
ComparisonNode(ComparisonOp operator, Expression left, Expression right)

Method Summary

Modifier and Type	Method and Description
Boolean	eval(Function context) 评估
protected boolean	getBoolean(String value, boolean defaultValue)
Expression	getLeft() 获取左侧
protected Number	getNumber(String value, Number defaultValue)
ComparisonOp	getOperator() 获取操作符
protected Object	getOptimizeValue(Object val, Object ref) 获取优化值
Expression	getRight() 获取右侧
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.noear.solon.expression.Expression

eval

Constructor Detail

ComparisonNode

public ComparisonNode(ComparisonOp operator,
                      Expression left,
                      Expression right)

Method Detail

getOperator

public ComparisonOp getOperator()

获取操作符

getLeft

public Expression getLeft()

获取左侧

getRight

public Expression getRight()

获取右侧

eval

public Boolean eval(Function context)

Description copied from interface: Expression

评估

Specified by:

eval in interface Expression<Boolean>

getOptimizeValue

protected Object getOptimizeValue(Object val,
                                  Object ref)

获取优化值

getBoolean

protected boolean getBoolean(String value,
                             boolean defaultValue)

getNumber

protected Number getNumber(String value,
                           Number defaultValue)

toString

public String toString()

Overrides:

toString in class Object