Package com.intellij.util

Class EmptyQuery<R>

java.lang.Object

com.intellij.util.EmptyQuery<R>

All Implemented Interfaces:

Query<R>, Iterable<R>

public class EmptyQuery<R>
extends Object
implements Query<R>

Author:

max

Constructor Summary

Constructors

Constructor	Description
EmptyQuery()

Method Summary

Modifier and Type	Method	Description
Collection<R>	findAll()	Get all of the results in the Collection
R	findFirst()	Get the first result or null if no results have been found.
boolean	forEach(Processor<R> consumer)	Process search results one-by-one.
static <T> Query<T>	getEmptyQuery()
Iterator<R>	iterator()
R[]	toArray(R[] a)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

EmptyQuery

public EmptyQuery()

Method Detail

findAll

@NotNull
public Collection<R> findAll()

Description copied from interface: Query

Get all of the results in the Collection

Specified by:

findAll in interface Query<R>

Returns:

results in a collection or empty collection if no results found.

findFirst

public R findFirst()

Description copied from interface: Query

Get the first result or null if no results have been found.

Specified by:

findFirst in interface Query<R>

Returns:

first result of the search or null if no results.

forEach

public boolean forEach(@NotNull
                       Processor<R> consumer)

Description copied from interface: Query

Process search results one-by-one. All the results will be subsequently fed to a consumer passed.

Specified by:

forEach in interface Query<R>

Parameters:

consumer - - a processor search results should be fed to.

Returns:

true if the search was completed normally, false if the occurrence processing was cancelled by the processor.

toArray

public R[] toArray(R[] a)

Specified by:

toArray in interface Query<R>

iterator

public Iterator<R> iterator()

Specified by:

iterator in interface Iterable<R>

getEmptyQuery

public static <T> Query<T> getEmptyQuery()