org.dromara.hutool.core.map.multi

Class RowKeyTable<R,C,V>

java.lang.Object

org.dromara.hutool.core.map.multi.AbsTable<R,C,V>

org.dromara.hutool.core.map.multi.RowKeyTable<R,C,V>

Type Parameters:

R - 行类型

C - 列类型

V - 值类型

All Implemented Interfaces:

Iterable<Table.Cell<R,C,V>>, Table<R,C,V>

public class RowKeyTable<R,C,V>
extends AbsTable<R,C,V>

将行的键作为主键的Table实现
此结构为: 行=(列=值)

Since:

5.7.23

Author:

Guava, Looly

Nested Class Summary

Nested classes/interfaces inherited from interface org.dromara.hutool.core.map.multi.Table

Table.Cell<R,C,V>

Constructor Summary

Constructors

Constructor and Description
RowKeyTable() 构造
RowKeyTable(boolean isLinked) 构造
RowKeyTable(Map<R,Map<C,V>> raw) 构造
RowKeyTable(Map<R,Map<C,V>> raw, Builder<? extends Map<C,V>> columnMapBuilder) 构造

Method Summary

Modifier and Type	Method and Description
void	clear() 清空表格
List<C>	columnKeys() 返回所有列的key，列的key如果实现Map是可重复key，则返回对应不去重的List。
Set<C>	columnKeySet() 返回所有列的key，列的key不可重复
Map<C,Map<R,V>>	columnMap() 返回列-行对应的map
boolean	containsColumn(C columnKey) 列是否存在
Map<R,V>	getColumn(C columnKey) 获取列
boolean	isEmpty() 表格是否为空
V	put(R rowKey, C columnKey, V value) 为表格指定行列赋值，如果不存在，创建之，存在则替换之，返回原值
V	remove(R rowKey, C columnKey) 移除指定值
Map<R,Map<C,V>>	rowMap() 返回行列对应的Map

Methods inherited from class org.dromara.hutool.core.map.multi.AbsTable

cellSet, equals, hashCode, iterator, toString, values

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.dromara.hutool.core.map.multi.Table

contains, containsRow, containsValue, forEach, get, getRow, putAll, rowKeySet, size

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

RowKeyTable

public RowKeyTable()

构造

RowKeyTable

public RowKeyTable(boolean isLinked)

构造

Parameters:

isLinked - 是否有序，有序则使用LinkedHashMap作为原始Map

Since:

5.8.0

RowKeyTable

public RowKeyTable(Map<R,Map<C,V>> raw)

构造

Parameters:

raw - 原始Map

RowKeyTable

public RowKeyTable(Map<R,Map<C,V>> raw,
                   Builder<? extends Map<C,V>> columnMapBuilder)

构造

Parameters:

raw - 原始Map

columnMapBuilder - 列的map创建器

Method Detail

rowMap

public Map<R,Map<C,V>> rowMap()

Description copied from interface: Table

返回行列对应的Map

Returns:

map，键为行键，值为列和值的对应map

put

public V put(R rowKey,
             C columnKey,
             V value)

Description copied from interface: Table

为表格指定行列赋值，如果不存在，创建之，存在则替换之，返回原值

Parameters:

rowKey - 行键

columnKey - 列键

value - 值

Returns:

原值，不存在返回null

remove

public V remove(R rowKey,
                C columnKey)

Description copied from interface: Table

移除指定值

Parameters:

rowKey - 行键

columnKey - 列键

Returns:

移除的值，如果值不存在，返回null

isEmpty

public boolean isEmpty()

Description copied from interface: Table

表格是否为空

Returns:

是否为空

clear

public void clear()

Description copied from interface: Table

清空表格

containsColumn

public boolean containsColumn(C columnKey)

Description copied from interface: Table

列是否存在

Parameters:

columnKey - 列键

Returns:

列是否存在

columnMap

public Map<C,Map<R,V>> columnMap()

Description copied from interface: Table

返回列-行对应的map

Returns:

map，键为列键，值为行和值的对应map

columnKeySet

public Set<C> columnKeySet()

Description copied from interface: Table

返回所有列的key，列的key不可重复

Returns:

列set

columnKeys

public List<C> columnKeys()

Description copied from interface: Table

返回所有列的key，列的key如果实现Map是可重复key，则返回对应不去重的List。

Returns:

列set

getColumn

public Map<R,V> getColumn(C columnKey)

Description copied from interface: Table

获取列

Parameters:

columnKey - 列键

Returns:

列映射，返回的键为行键，值为表格的值