org.onosproject.net

Class DefaultAnnotations

java.lang.Object

org.onosproject.net.DefaultAnnotations

All Implemented Interfaces:

Annotations, SparseAnnotations

public final class DefaultAnnotations
extends Object
implements SparseAnnotations

Represents a set of simple annotations that can be used to add arbitrary attributes to various parts of the data model.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DefaultAnnotations.Builder Facility for gradually building model annotations.

Field Summary

Fields

Modifier and Type	Field and Description
static SparseAnnotations	EMPTY

Method Summary

Modifier and Type	Method and Description
HashMap<String,String>	asMap() Returns the annotations as a map.
static DefaultAnnotations.Builder	builder() Creates a new annotations builder.
boolean	equals(Object o)
int	hashCode()
boolean	isRemoved(String key) Indicates whether the specified key has been tagged as removed.
Set<String>	keys() Returns the set of keys for available annotations.
static DefaultAnnotations	merge(DefaultAnnotations annotations, SparseAnnotations sparseAnnotations) Merges the specified base set of annotations and additional sparse annotations into new combined annotations.
String	toString()
static SparseAnnotations	union(SparseAnnotations annotations, SparseAnnotations sparseAnnotations) Creates the union of two given SparseAnnotations.
String	value(String key) Returns the value of the specified annotation.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY

public static final SparseAnnotations EMPTY

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

asMap

public HashMap<String,String> asMap()

Returns the annotations as a map.

Returns:

a copy of the contents of the annotations as a map.

builder

public static DefaultAnnotations.Builder builder()

Creates a new annotations builder.

Returns:

new annotations builder

merge

public static DefaultAnnotations merge(DefaultAnnotations annotations,
                                       SparseAnnotations sparseAnnotations)

Merges the specified base set of annotations and additional sparse annotations into new combined annotations. If the supplied sparse annotations are empty, the original base annotations are returned. Any keys tagged for removal in the sparse annotations will be omitted in the resulting merged annotations.

Parameters:

annotations - base annotations

sparseAnnotations - additional sparse annotations

Returns:

combined annotations or the original base annotations if there are not additional annotations

union

public static SparseAnnotations union(SparseAnnotations annotations,
                                      SparseAnnotations sparseAnnotations)

Creates the union of two given SparseAnnotations. Unlike the merge(DefaultAnnotations, SparseAnnotations) method, result will be SparseAnnotations instead of Annotations. A key tagged for removal will remain in the output SparseAnnotations, if the counterpart of the input does not contain the same key.

Parameters:

annotations - base annotations

sparseAnnotations - additional sparse annotations

Returns:

combined annotations or the original base annotations if there are not additional annotations

keys

public Set<String> keys()

Description copied from interface: SparseAnnotations

Returns the set of keys for available annotations.

Note that this set includes keys for any attributes tagged for removal.

Specified by:

keys in interface Annotations

Specified by:

keys in interface SparseAnnotations

Returns:

annotation keys

value

public String value(String key)

Description copied from interface: Annotations

Returns the value of the specified annotation.

Specified by:

value in interface Annotations

Parameters:

key - annotation key

Returns:

annotation value

isRemoved

public boolean isRemoved(String key)

Description copied from interface: SparseAnnotations

Indicates whether the specified key has been tagged as removed. This is used for merging sparse annotation sets.

Specified by:

isRemoved in interface SparseAnnotations

Parameters:

key - annotation key

Returns:

true if the previous annotation has been tagged for removal

toString

public String toString()

Overrides:

toString in class Object