Module spring.data.jdbc

Package org.springframework.data.jdbc.repository.support

Class ScrollDelegate

java.lang.Object

org.springframework.data.jdbc.repository.support.ScrollDelegate

public class ScrollDelegate
extends Object

Delegate to run scroll queries and create result Window.

Since:

3.1.4

Author:

Mark Paluch

Constructor Summary

Constructors

Constructor	Description
ScrollDelegate()

Method Summary

Modifier and Type	Method	Description
static <T> List<T>	getFirst(int count, List<T> list)	Return the first count items from the list.
static <T> Window<T>	scroll(org.springframework.data.relational.core.query.Query query, Function<org.springframework.data.relational.core.query.Query,List<T>> queryFunction, ScrollPosition scrollPosition)	Run the Query and return a scroll Window.

Methods inherited from class java.lang.Object

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

Constructor Details

ScrollDelegate

public ScrollDelegate()

Method Details

scroll

public static <T> Window<T> scroll(org.springframework.data.relational.core.query.Query query,
 Function<org.springframework.data.relational.core.query.Query,List<T>> queryFunction,
 ScrollPosition scrollPosition)

Run the Query and return a scroll Window.

Parameters:

query - must not be null.

scrollPosition - must not be null.

Returns:

the scroll Window.

getFirst

public static <T> List<T> getFirst(int count,
 List<T> list)

Return the first count items from the list.

Type Parameters:

T - the element type of the lists.

Parameters:

count - the number of first elements to be included in the returned list.

list - must not be null

Returns:

the returned sublist if the list is greater count.