Top Description Fields Constructors Methods
org.springframework.core.convert.support

pack-priv final Class CollectionToArrayConverter

extends Object
implements ConditionalGenericConverter
Class Inheritance
All Implemented Interfaces
org.springframework.core.convert.converter.ConditionalGenericConverter, org.springframework.core.convert.converter.ConditionalConverter, org.springframework.core.convert.converter.GenericConverter
Imports
java.lang.reflect.Array, java.util.Collection, .Collections, .Set, org.springframework.core.convert.ConversionService, .TypeDescriptor, org.springframework.core.convert.converter.ConditionalGenericConverter, org.springframework.lang.Nullable, org.springframework.util.Assert
Converts a Collection to an array.

First, creates a new array of the requested targetType with a length equal to the size of the source Collection. Then sets each collection element into the array. Will perform an element conversion from the collection's parameterized type to the array's component type if necessary.

Authors
Keith Donald, Juergen Hoeller
Since
3.0

Field Summary

Modifier and TypeField and Description
private final ConversionService
conversionService

Constructor Summary

AccessConstructor and Description
public
CollectionToArrayConverter(ConversionService conversionService)

Method Summary

Modifier and TypeMethod and Description
public Object
convert(Object
the source object to convert (may be null)
source, TypeDescriptor
the type descriptor of the field we are converting from
sourceType, TypeDescriptor
the type descriptor of the field we are converting to
targetType)

Implements org.springframework.core.convert.converter.GenericConverter.convert.

Convert the source object to the targetType described by the TypeDescriptor.

public Set<GenericConverter.ConvertiblePair>
getConvertibleTypes()

Implements org.springframework.core.convert.converter.GenericConverter.getConvertibleTypes.

Return the source and target types that this converter can convert between.

public boolean
matches(TypeDescriptor
the type descriptor of the field we are converting from
sourceType, TypeDescriptor
the type descriptor of the field we are converting to
targetType)

Implements org.springframework.core.convert.converter.ConditionalConverter.matches.

Should the conversion from sourceType to targetType currently under consideration be selected?

Inherited from java.lang.Object:
cloneequalsfinalizegetClasshashCodenotifynotifyAlltoStringwaitwaitwait

Field Detail

conversionServiceback to summary
private final ConversionService conversionService

Constructor Detail

CollectionToArrayConverterback to summary
public CollectionToArrayConverter(ConversionService conversionService)

Method Detail

convertback to summary
public Object convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType)

Implements org.springframework.core.convert.converter.GenericConverter.convert.

Doc from org.springframework.core.convert.converter.GenericConverter.convert.

Convert the source object to the targetType described by the TypeDescriptor.

Parameters
source:Object

the source object to convert (may be null)

sourceType:TypeDescriptor

the type descriptor of the field we are converting from

targetType:TypeDescriptor

the type descriptor of the field we are converting to

Returns:Object

the converted object

Annotations
@Override
@Nullable
getConvertibleTypesback to summary
public Set<GenericConverter.ConvertiblePair> getConvertibleTypes()

Implements org.springframework.core.convert.converter.GenericConverter.getConvertibleTypes.

Doc from org.springframework.core.convert.converter.GenericConverter.getConvertibleTypes.

Return the source and target types that this converter can convert between.

Each entry is a convertible source-to-target type pair.

For conditional converters this method may return null to indicate all source-to-target pairs should be considered.

Annotations
@Override
matchesback to summary
public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType)

Implements org.springframework.core.convert.converter.ConditionalConverter.matches.

Doc from org.springframework.core.convert.converter.ConditionalConverter.matches.

Should the conversion from sourceType to targetType currently under consideration be selected?

Parameters
sourceType:TypeDescriptor

the type descriptor of the field we are converting from

targetType:TypeDescriptor

the type descriptor of the field we are converting to

Returns:boolean

true if conversion should be performed, false otherwise

Annotations
@Override