com.ql.util.express.instruction.op

类 OperatorFactory

java.lang.Object

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

public class OperatorFactory
extends java.lang.Object

字段概要

字段

限定符和类型	字段和说明
protected boolean	isPrecise 是否需要高精度计算

构造器概要

构造器

构造器和说明
OperatorFactory(boolean aIsPrecise)

方法概要

限定符和类型	方法和说明
void	addOperator(java.lang.String name, OperatorBase op)
void	addOperatorWithAlias(java.lang.String aAliasName, java.lang.String name, java.lang.String errorInfo)
OperatorBase	getOperator(java.lang.String aOperName)
boolean	isExistOperator(java.lang.String operName)
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)

从类继承的方法 java.lang.Object

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

字段详细资料

isPrecise

protected boolean isPrecise

是否需要高精度计算

构造器详细资料

OperatorFactory

public OperatorFactory(boolean aIsPrecise)

方法详细资料

addOperator

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

replaceOperator

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

addOperatorWithAlias

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

抛出:

java.lang.Exception

isExistOperator

public boolean isExistOperator(java.lang.String operName)
                        throws java.lang.Exception

抛出:

java.lang.Exception

getOperator

public OperatorBase getOperator(java.lang.String aOperName)

newInstance

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

创建一个新的操作符实例

抛出:

java.lang.Exception

newInstance

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

抛出:

java.lang.Exception