org.bremersee.pagebuilder

Class PageBuilderUtils

java.lang.Object

org.bremersee.pagebuilder.PageBuilderUtils

public abstract class PageBuilderUtils
extends Object

Utility methods.

Author:

Christian Bremer

Method Summary

Modifier and Type	Method and Description
static <E,T> PageDto	createPageDto(Page<E> page, PageEntryTransformer<T,E> transformer) Transforms a page into a page DTO.
static PageRequestDto	createPageRequestDto(PageRequest pageRequest) Transforms a page request into a page request DTO.
static <T> T	jsonMapToObject(Map<String,Object> map, Class<T> valueType, com.fasterxml.jackson.databind.ObjectMapper objectMapper) Transforms a JSON map to an object.

Methods inherited from class java.lang.Object

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

Method Detail

createPageDto

public static <E,T> PageDto createPageDto(Page<E> page,
                                          PageEntryTransformer<T,E> transformer)

Transforms a page into a page DTO.

Parameters:

page - the page

transformer - the transformer (may be null - than all entries of the page will be added to the DTO without transforming)

Returns:

the page DTO

createPageRequestDto

public static PageRequestDto createPageRequestDto(PageRequest pageRequest)

Transforms a page request into a page request DTO.

Parameters:

pageRequest - the page request (can be null)

Returns:

the page request DTO (can be null)

jsonMapToObject

public static <T> T jsonMapToObject(Map<String,Object> map,
                                    Class<T> valueType,
                                    com.fasterxml.jackson.databind.ObjectMapper objectMapper)
                             throws IOException

Transforms a JSON map to an object.

Parameters:

map - the JSON map

valueType - the class of the target object

objectMapper - the JSON object mapper (optional)

Returns:

the target object

Throws:

IOException - if transformation fails