com.google.cloud.tools.jib.image

Class ImageLayers<T extends Layer>

java.lang.Object

com.google.cloud.tools.jib.image.ImageLayers<T>

All Implemented Interfaces:

Iterable<T>

public class ImageLayers<T extends Layer>
extends Object
implements Iterable<T>

Holds the layers for an image. Makes sure that each layer is only added once.

Constructor Summary

Constructors

Constructor and Description
ImageLayers()

Method Summary

Modifier and Type	Method and Description
ImageLayers<T>	add(T layer) Adds a layer.
<U extends T> ImageLayers<T>	addAll(ImageLayers<U> layers) Adds all layers in layers.
T	get(DescriptorDigest digest)
T	get(int index)
List<T>	getLayers() Returns a read-only view of the image layers.
boolean	has(DescriptorDigest digest)
boolean	isEmpty()
Iterator<T>	iterator()
int	size()

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

ImageLayers

public ImageLayers()

Method Detail

getLayers

public List<T> getLayers()

Returns a read-only view of the image layers.

size

public int size()

Returns:

the layer count

isEmpty

public boolean isEmpty()

get

public T get(int index)

Returns:

the layer at the specified index

get

@Nullable
public T get(DescriptorDigest digest)
                throws LayerPropertyNotFoundException

Returns:

the layer by digest, or null if not found

Throws:

LayerPropertyNotFoundException

has

public boolean has(DescriptorDigest digest)

Returns:

true if the layer with the specified digest exists; false otherwise

add

public ImageLayers<T> add(T layer)
                   throws LayerPropertyNotFoundException

Adds a layer.

Parameters:

layer - the layer to add

Throws:

LayerPropertyNotFoundException

addAll

public <U extends T> ImageLayers<T> addAll(ImageLayers<U> layers)
                                    throws LayerPropertyNotFoundException

Adds all layers in layers.

Throws:

LayerPropertyNotFoundException

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T extends Layer>