pro.fessional.mirana.data

Class Diff

java.lang.Object

pro.fessional.mirana.data.Diff

public class Diff
extends Object

Since:

2016-02-24.

Author:

trydofor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Diff.D<E>
static class	Diff.S<E>

Constructor Summary

Constructors

Constructor and Description
Diff()

Method Summary

Modifier and Type	Method and Description
static <E> @NotNull Diff.S<E>	of(@Nullable Collection<? extends E> setA, @Nullable Collection<? extends E> setB) 使用 T.equals 比较A和B集合的差异，相同时以A为准
static <E,K> @NotNull Diff.D<E>	of(@Nullable Collection<? extends E> setNew, @Nullable Collection<? extends E> setOld, @NotNull Function<E,K> getPk, @NotNull BiPredicate<E,E> same) 通过B判定A集合内数据的，增，删，改，未变化

Methods inherited from class java.lang.Object

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

Constructor Detail

Diff

public Diff()

Method Detail

of

@NotNull
public static <E> @NotNull Diff.S<E> of(@Nullable
                                                 @Nullable Collection<? extends E> setA,
                                                 @Nullable
                                                 @Nullable Collection<? extends E> setB)

使用 T.equals 比较A和B集合的差异，相同时以A为准

Type Parameters:

E - 元素

Parameters:

setA - 集合A

setB - 集合A

Returns:

A有B无，B有A无，AB都有

of

@NotNull
public static <E,K> @NotNull Diff.D<E> of(@Nullable
                                                   @Nullable Collection<? extends E> setNew,
                                                   @Nullable
                                                   @Nullable Collection<? extends E> setOld,
                                                   @NotNull
                                                   @NotNull Function<E,K> getPk,
                                                   @NotNull
                                                   @NotNull BiPredicate<E,E> same)

通过B判定A集合内数据的，增，删，改，未变化

Type Parameters:

E - 元素

K - 主键

Parameters:

setNew - 新集合

setOld - 旧集合

getPk - 元素主键

same - 元素是否变化

Returns:

增，删，改，未变化