Package org.springframework.graphql.data.pagination

Interface ConnectionAdapter

All Known Implementing Classes:

SliceConnectionAdapter, WindowConnectionAdapter

public interface ConnectionAdapter

Contract to adapt a container object for a window of elements from a larger result set to Connection.

Since:

1.2

Author:

Rossen Stoyanchev

Method Summary

Modifier and Type	Method	Description
String	cursorAt(Object container, int index)	Return a cursor for the item at the given index.
static ConnectionAdapter	from(List<ConnectionAdapter> adapters)	Create a composite ConnectionAdapter that checks which adapter supports a given Object container type and delegates to it.
<T> Collection<T>	getContent(Object container)	Return the contained items as a List.
boolean	hasNext(Object container)	Whether there are more pages after this one.
boolean	hasPrevious(Object container)	Whether there are more pages before this one.
boolean	supports(Class<?> containerType)	Whether the adapter supports the given Object container type.

Method Details

supports

boolean supports(Class<?> containerType)

Whether the adapter supports the given Object container type.

getContent

<T> Collection<T> getContent(Object container)

Return the contained items as a List.

hasPrevious

boolean hasPrevious(Object container)

Whether there are more pages before this one.

hasNext

boolean hasNext(Object container)

Whether there are more pages after this one.

cursorAt

String cursorAt(Object container,
 int index)

Return a cursor for the item at the given index.

from

static ConnectionAdapter from(List<ConnectionAdapter> adapters)

Create a composite ConnectionAdapter that checks which adapter supports a given Object container type and delegates to it.

Parameters:

adapters - the adapters to delegate to

Returns:

the composite adapter instance