org.dellroad.stuff.vaadin7

Class SimpleQueryList<T>

java.lang.Object

org.dellroad.stuff.vaadin7.SimpleQueryList<T>

All Implemented Interfaces:

QueryList<T>

public class SimpleQueryList<T>
extends Object
implements QueryList<T>

Simple QueryList implementation using a normal List.

See Also:

AbstractQueryContainer

Constructor Summary

Constructors

Constructor and Description
SimpleQueryList(List<? extends T> list) Constructor.

Method Summary

Modifier and Type	Method and Description
T	get(long index) Get an item in the list, or throw an exception if this instance is no longer valid or cannot provide the item.
long	size() Get the total size of this list.

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleQueryList

public SimpleQueryList(List<? extends T> list)

Constructor.

Parameters:

list - backing list

Throws:

IllegalArgumentException - if list is null

Method Detail

size

public long size()

Description copied from interface: QueryList

Get the total size of this list.

For any given QueryList instance, this method is expected to return a the same value if invoked multiple times. Therefore, callers may safely choose to invoke it only once on a given instance and cache the result.

Specified by:

size in interface QueryList<T>

Returns:

total size of list

get

public T get(long index)

Description copied from interface: QueryList

Get an item in the list, or throw an exception if this instance is no longer valid or cannot provide the item.

Specified by:

get in interface QueryList<T>

Parameters:

index - index of the item (zero-based)

Returns:

the list item at index