org.apache.sshd.common.util.helper

Class LazyMatchingTypeIterable<T>

java.lang.Object

org.apache.sshd.common.util.helper.LazyMatchingTypeIterable<T>

Type Parameters:

T - Type of element being selected

All Implemented Interfaces:

java.lang.Iterable<T>

public class LazyMatchingTypeIterable<T>
extends java.lang.Object
implements java.lang.Iterable<T>

Provides a selective Iterable over values that match a specific type out of all available. The "lazy" denomination is due to the fact that the next matching value is calculated on-the-fly every time Iterator.hasNext() is called

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Class<T>	type
private java.lang.Iterable<?>	values

Constructor Summary

Constructors

Constructor and Description
LazyMatchingTypeIterable(java.lang.Iterable<?> values, java.lang.Class<T> type)

Method Summary

Modifier and Type	Method and Description
java.lang.Class<T>	getType()
java.lang.Iterable<?>	getValues()
java.util.Iterator<T>	iterator()
static <T> java.lang.Iterable<T>	lazySelectMatchingTypes(java.lang.Iterable<?> values, java.lang.Class<T> type)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

values

private final java.lang.Iterable<?> values

type

private final java.lang.Class<T> type

Constructor Detail

LazyMatchingTypeIterable

public LazyMatchingTypeIterable(java.lang.Iterable<?> values,
                                java.lang.Class<T> type)

Method Detail

getValues

public java.lang.Iterable<?> getValues()

getType

public java.lang.Class<T> getType()

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.lang.Iterable<T>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

lazySelectMatchingTypes

public static <T> java.lang.Iterable<T> lazySelectMatchingTypes(java.lang.Iterable<?> values,
                                                                java.lang.Class<T> type)

Type Parameters:

T - Type if iterated element

Parameters:

values - The source values - ignored if null

type - The (never @code null) type of values to select - any value whose type is assignable to this type will be selected by the iterator.

Returns:

Iterable whose Iterator selects only values matching the specific type. Note: the matching values are not pre-calculated (hence the "lazy" denomination) - i.e., the match is performed only when Iterator.hasNext() is called.