com.ql.util.express.instruction.op

Class OperatorFactory

java.lang.Object

com.ql.util.express.instruction.op.OperatorFactory

public class OperatorFactory
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
OperatorFactory(boolean isPrecise)

Method Summary

Modifier and Type	Method and Description
void	addOperator(java.lang.String name, OperatorBase operatorBase)
void	addOperatorWithAlias(java.lang.String aliasName, java.lang.String name, java.lang.String errorInfo)
OperatorBase	getOperator(java.lang.String operatorName)
boolean	isExistOperator(java.lang.String operatorName)
OperatorBase	newInstance(ExpressNode opItem) 创建一个新的操作符实例
OperatorBase	newInstance(java.lang.String opName)
OperatorBase	replaceOperator(java.lang.String name, OperatorBase op)

Methods inherited from class java.lang.Object

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

Constructor Detail

OperatorFactory

public OperatorFactory(boolean isPrecise)

Method Detail

addOperator

public void addOperator(java.lang.String name,
                        OperatorBase operatorBase)

replaceOperator

public OperatorBase replaceOperator(java.lang.String name,
                                    OperatorBase op)

addOperatorWithAlias

public void addOperatorWithAlias(java.lang.String aliasName,
                                 java.lang.String name,
                                 java.lang.String errorInfo)
                          throws java.lang.Exception

Throws:

java.lang.Exception

isExistOperator

public boolean isExistOperator(java.lang.String operatorName)

getOperator

public OperatorBase getOperator(java.lang.String operatorName)

newInstance

public OperatorBase newInstance(ExpressNode opItem)
                         throws java.lang.Exception

创建一个新的操作符实例

Throws:

java.lang.Exception

newInstance

public OperatorBase newInstance(java.lang.String opName)
                         throws java.lang.Exception

Throws:

java.lang.Exception