top.mao196.calcobject.strategy

类 DefaultCalcStrategy

java.lang.Object

top.mao196.calcobject.strategy.DefaultCalcStrategy

所有已实现的接口:

CalcStrategy

public class DefaultCalcStrategy
extends Object
implements CalcStrategy

作者:

susanbushisan

字段概要

字段

限定符和类型	字段和说明
protected EnumSet<CalcType>	numberType
protected List<CalcType>	numberTypeOrder
protected RoundingMode	roundingMode

构造器概要

构造器

构造器和说明
DefaultCalcStrategy()

方法概要

限定符和类型	方法和说明
CalcObject	add(CalcObject a, CalcObject b)
int	compare(CalcObject a, CalcObject b) 比较两个对象，如果无法比较则抛出一场 针对Null和Error有特殊的比较规则 在比较的情况下Null和0一样进行比较 Error在类型相同的情况下返回0，其他情况下compare(Error,any)=1 compare(any,Error)=-1
CalcObject	div(CalcObject a, CalcObject b)
boolean	eq(CalcObject a, CalcObject b) 如果两个对象不可比较，则返回false
CalcType	getNumberCalcType(CalcNumber a, CalcNumber b) 获取两个对象的应该进行计算的类型
protected boolean	isError(CalcObject obj)
protected boolean	isNull(CalcObject obj)
protected boolean	isNumber(CalcObject obj)
CalcObject	mod(CalcObject a, CalcObject b)
CalcObject	multi(CalcObject a, CalcObject b)
CalcObject	neg(CalcObject a)
CalcObject	sub(CalcObject a, CalcObject b)

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

numberType

protected EnumSet<CalcType> numberType

numberTypeOrder

protected List<CalcType> numberTypeOrder

roundingMode

protected RoundingMode roundingMode

构造器详细资料

DefaultCalcStrategy

public DefaultCalcStrategy()

方法详细资料

add

public CalcObject add(CalcObject a,
                      CalcObject b)

指定者:

add 在接口中 CalcStrategy

sub

public CalcObject sub(CalcObject a,
                      CalcObject b)

指定者:

sub 在接口中 CalcStrategy

multi

public CalcObject multi(CalcObject a,
                        CalcObject b)

指定者:

multi 在接口中 CalcStrategy

div

public CalcObject div(CalcObject a,
                      CalcObject b)

指定者:

div 在接口中 CalcStrategy

mod

public CalcObject mod(CalcObject a,
                      CalcObject b)

指定者:

mod 在接口中 CalcStrategy

getNumberCalcType

public CalcType getNumberCalcType(CalcNumber a,
                                  CalcNumber b)

获取两个对象的应该进行计算的类型

参数:

a - 计算对象a

b - 计算对象b

返回:

计算类型

neg

public CalcObject neg(CalcObject a)

指定者:

neg 在接口中 CalcStrategy

compare

public int compare(CalcObject a,
                   CalcObject b)

比较两个对象，如果无法比较则抛出一场 针对Null和Error有特殊的比较规则 在比较的情况下Null和0一样进行比较 Error在类型相同的情况下返回0，其他情况下compare(Error,any)=1 compare(any,Error)=-1

指定者:

compare 在接口中 CalcStrategy

eq

public boolean eq(CalcObject a,
                  CalcObject b)

如果两个对象不可比较，则返回false

指定者:

eq 在接口中 CalcStrategy

isNumber

protected boolean isNumber(CalcObject obj)

isNull

protected boolean isNull(CalcObject obj)

isError

protected boolean isError(CalcObject obj)