Class EntryViews.ReadWriteSnapshotView<K,V>

java.lang.Object

org.infinispan.functional.impl.EntryViews.ReadWriteSnapshotView<K,V>

All Implemented Interfaces:

EntryView.ReadEntryView<K,V>, EntryView.ReadWriteEntryView<K,V>, EntryView.WriteEntryView<K,V>, MetaParam.Lookup

Enclosing class:

EntryViews

@ProtoTypeId(1076)
public static final class EntryViews.ReadWriteSnapshotView<K,V>
extends Object
implements EntryView.ReadWriteEntryView<K,V>

Since:

8.0

Constructor Summary

Constructors

Constructor	Description
ReadWriteSnapshotView(K key, V value, Metadata metadata)

Method Summary

Modifier and Type	Method	Description
Optional<V>	find()	Optional value.
<T extends MetaParam> Optional<T>	findMetaParam(Class<T> type)	Returns a non-empty Optional instance containing a metadata parameter instance that can be assigned to the type Class passed in, or an empty Optional if no metadata can be assigned to that type.
V	get()	Returns a non-null value if the key has a value associated with it or throws NoSuchElementException if no value is associated with the entry.
K	key()	Key of the read-only entry view.
Void	remove()	Removes the value and any metadata parameters associated with it.
Void	set(V value, MetaParam.Writable... metas)	Set this value along with optional metadata parameters.
Void	set(V value, Metadata metadata)	Set this value along with metadata object.
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.functional.EntryView.ReadEntryView

find, get, key, peek

Methods inherited from interface org.infinispan.functional.EntryView.WriteEntryView

key

Methods inherited from interface org.infinispan.functional.MetaParam.Lookup

findMetaParam

Constructor Details

ReadWriteSnapshotView

public ReadWriteSnapshotView(K key,
 V value,
 Metadata metadata)

Method Details

set

public Void set(V value,
 MetaParam.Writable... metas)

Description copied from interface: EntryView.WriteEntryView

Set this value along with optional metadata parameters.

This method returns Void instead of 'void' to avoid having to add overloaded methods in functional map that take Consumer instead of Function. This is an unfortunate side effect of the Java language itself which does not consider 'void' to be an Object.

Specified by:

set in interface EntryView.WriteEntryView<K,V>

set

public Void set(V value,
 Metadata metadata)

Description copied from interface: EntryView.WriteEntryView

Set this value along with metadata object.

This method returns Void instead of 'void' to avoid having to add overloaded methods in functional map that take Consumer instead of Function. This is an unfortunate side effect of the Java language itself which does not consider 'void' to be an Object.

Specified by:

set in interface EntryView.WriteEntryView<K,V>

remove

public Void remove()

Description copied from interface: EntryView.WriteEntryView

Removes the value and any metadata parameters associated with it.

This method returns Void instead of 'void' to avoid having to add overloaded methods in functional map that take Consumer instead of Function. This is an unfortunate side effect of the Java language itself which does not consider 'void' to be an Object.

Specified by:

remove in interface EntryView.WriteEntryView<K,V>

toString

public String toString()

Overrides:

toString in class Object

key

public K key()

Description copied from interface: EntryView.ReadEntryView

Key of the read-only entry view. Guaranteed to return a non-null value. The instance of the key must not be mutated.

Specified by:

key in interface EntryView.ReadEntryView<K,V>

get

public V get()
      throws NoSuchElementException

Description copied from interface: EntryView.ReadEntryView

Returns a non-null value if the key has a value associated with it or throws NoSuchElementException if no value is associated with the entry.

The value instance is read-only and must not be mutated. If the function accessing this value is about to update the entry, it has to create a defensive copy (or completely new instance) and store it using EntryView.WriteEntryView.set(Object, MetaParam.Writable[]).

Specified by:

get in interface EntryView.ReadEntryView<K,V>

Throws:

NoSuchElementException - if no value is associated with the key.

find

public Optional<V> find()

Description copied from interface: EntryView.ReadEntryView

Optional value. It'll return a non-empty value when the value is present, and empty when the value is not present.

The value instance is read-only and must not be mutated. If the function accessing this value is about to update the entry, it has to create a defensive copy (or completely new instance) and store it using EntryView.WriteEntryView.set(Object, MetaParam.Writable[]).

Specified by:

find in interface EntryView.ReadEntryView<K,V>

findMetaParam

public <T extends MetaParam> Optional<T> findMetaParam(Class<T> type)

Description copied from interface: MetaParam.Lookup

Returns a non-empty Optional instance containing a metadata parameter instance that can be assigned to the type Class passed in, or an empty Optional if no metadata can be assigned to that type.

Specified by:

findMetaParam in interface MetaParam.Lookup

Type Parameters:

T - metadata parameter type