cn.hutool.core.convert.impl

Class CollectionConverter

java.lang.Object

cn.hutool.core.convert.impl.CollectionConverter

All Implemented Interfaces:

Converter<Collection<?>>

public class CollectionConverter
extends Object
implements Converter<Collection<?>>

各种集合类转换器

Since:

3.0.8

Author:

Looly

Constructor Summary

Constructors

Constructor and Description
CollectionConverter() 构造，默认集合类型使用Collection
CollectionConverter(Class<?> collectionType) 构造
CollectionConverter(Type collectionType) 构造
CollectionConverter(Type collectionType, Type elementType) 构造

Method Summary

Modifier and Type	Method and Description
Collection<?>	convert(Object value, Collection<?> defaultValue) 转换为指定类型 如果类型无法确定，将读取默认值的类型做为目标类型
protected Collection<?>	convertInternal(Object value) 内部转换

Methods inherited from class java.lang.Object

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

Methods inherited from interface cn.hutool.core.convert.Converter

convertWithCheck

Constructor Detail

CollectionConverter

public CollectionConverter()

构造，默认集合类型使用Collection

CollectionConverter

public CollectionConverter(Type collectionType)

构造

Parameters:

collectionType - 集合类型

CollectionConverter

public CollectionConverter(Class<?> collectionType)

构造

Parameters:

collectionType - 集合类型

CollectionConverter

public CollectionConverter(Type collectionType,
                           Type elementType)

构造

Parameters:

collectionType - 集合类型

elementType - 集合元素类型

Method Detail

convert

public Collection<?> convert(Object value,
                             Collection<?> defaultValue)
                      throws IllegalArgumentException

Description copied from interface: Converter

转换为指定类型
如果类型无法确定，将读取默认值的类型做为目标类型

Specified by:

convert in interface Converter<Collection<?>>

Parameters:

value - 原始值

defaultValue - 默认值

Returns:

转换后的值

Throws:

IllegalArgumentException - 无法确定目标类型，且默认值为null，无法确定类型

convertInternal

protected Collection<?> convertInternal(Object value)

内部转换

Parameters:

value - 值

Returns:

转换后的集合对象