Module spring.data.elasticsearch

Package org.springframework.data.elasticsearch.repository.support.value

Class ElasticsearchQueryValueConversionService

java.lang.Object

org.springframework.data.elasticsearch.repository.support.value.ElasticsearchQueryValueConversionService

All Implemented Interfaces:

ConversionService

public class ElasticsearchQueryValueConversionService
extends Object
implements ConversionService

A ConversionService using custom converters to handle query values in elasticsearch query. If the value to be converted beyond the scope of custom converters, it'll delegate to the delegated conversion service.

This is a better solution for converting query values in elasticsearch query, because it has all the capability the delegated conversion service has, especially for user-registered Converters.

Since:

5.3

Author:

Haibo Liu

Method Summary

Modifier and Type	Method	Description
boolean	canConvert(Class<?> sourceType, Class<?> targetType)
boolean	canConvert(TypeDescriptor sourceType, TypeDescriptor targetType)
<T> T	convert(Object source, Class<T> targetType)
Object	convert(Object source, TypeDescriptor sourceType, TypeDescriptor targetType)
static ElasticsearchQueryValueConversionService	getInstance(ConversionService conversionService)	Get a ElasticsearchQueryValueConversionService with this conversion service as delegated.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.core.convert.ConversionService

convert

Method Details

getInstance

public static ElasticsearchQueryValueConversionService getInstance(ConversionService conversionService)

Get a ElasticsearchQueryValueConversionService with this conversion service as delegated.

Parameters:

conversionService - conversion service as delegated

Returns:

a conversion service having the capability to convert query values in elasticsearch query

canConvert

public boolean canConvert(@Nullable
 Class<?> sourceType,
 Class<?> targetType)

Specified by:

canConvert in interface ConversionService

canConvert

public boolean canConvert(@Nullable
 TypeDescriptor sourceType,
 TypeDescriptor targetType)

Specified by:

canConvert in interface ConversionService

convert

@Nullable
public <T> T convert(@Nullable
 Object source,
 Class<T> targetType)

Specified by:

convert in interface ConversionService

convert

@Nullable
public Object convert(@Nullable
 Object source,
 @Nullable
 TypeDescriptor sourceType,
 TypeDescriptor targetType)

Specified by:

convert in interface ConversionService