Package org.apache.cassandra.schema

Class Keyspaces

java.lang.Object

org.apache.cassandra.schema.Keyspaces

All Implemented Interfaces:

Iterable<KeyspaceMetadata>

public final class Keyspaces
extends Object
implements Iterable<KeyspaceMetadata>

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	Keyspaces.Builder
static final class	Keyspaces.KeyspacesDiff

Method Summary

Modifier and Type	Method	Description
static Keyspaces.Builder	builder()
boolean	containsKeyspace(String name)
static Keyspaces.KeyspacesDiff	diff(Keyspaces before, Keyspaces after)
boolean	equals(Object o)
Keyspaces	filter(Predicate<KeyspaceMetadata> predicate)
Optional<KeyspaceMetadata>	get(String name)	Get the keyspace with the specified name
KeyspaceMetadata	getNullable(String name)
TableMetadata	getTableOrViewNullable(TableId id)
int	hashCode()
boolean	isEmpty()
Iterator<KeyspaceMetadata>	iterator()
com.google.common.collect.ImmutableSet<String>	names()
static Keyspaces	none()
static Keyspaces	of(KeyspaceMetadata... keyspaces)
int	size()
Stream<KeyspaceMetadata>	stream()
String	toString()
void	validate()
Keyspaces	withAddedOrReplaced(KeyspaceMetadata keyspace)	Returns a new Keyspaces equivalent to this one, but with the provided keyspace metadata either added (if this Keyspaces does not have that keyspace), or replaced by the provided definition.
Keyspaces	withAddedOrReplaced(Keyspaces keyspaces)	Calls withAddedOrReplaced(KeyspaceMetadata) on all the keyspaces of the provided Keyspaces.
Keyspaces	withAddedOrUpdated(KeyspaceMetadata keyspace)
Keyspaces	without(String name)	Creates a Keyspaces instance with the keyspace with the provided name removed
Keyspaces	without(Collection<String> names)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Details

builder

public static Keyspaces.Builder builder()

none

public static Keyspaces none()

of

public static Keyspaces of(KeyspaceMetadata... keyspaces)

iterator

public Iterator<KeyspaceMetadata> iterator()

Specified by:

iterator in interface Iterable<KeyspaceMetadata>

stream

public Stream<KeyspaceMetadata> stream()

names

public com.google.common.collect.ImmutableSet<String> names()

get

public Optional<KeyspaceMetadata> get(String name)

Get the keyspace with the specified name

Parameters:

name - a non-qualified keyspace name

Returns:

an empty Optional if the table name is not found; a non-empty optional of KeyspaceMetadata otherwise

getNullable

@Nullable
public KeyspaceMetadata getNullable(String name)

containsKeyspace

public boolean containsKeyspace(String name)

getTableOrViewNullable

@Nullable
public TableMetadata getTableOrViewNullable(TableId id)

isEmpty

public boolean isEmpty()

filter

public Keyspaces filter(Predicate<KeyspaceMetadata> predicate)

without

public Keyspaces without(String name)

Creates a Keyspaces instance with the keyspace with the provided name removed

without

public Keyspaces without(Collection<String> names)

withAddedOrUpdated

public Keyspaces withAddedOrUpdated(KeyspaceMetadata keyspace)

withAddedOrReplaced

public Keyspaces withAddedOrReplaced(KeyspaceMetadata keyspace)

Returns a new Keyspaces equivalent to this one, but with the provided keyspace metadata either added (if this Keyspaces does not have that keyspace), or replaced by the provided definition.

Note that if this contains the provided keyspace, its pre-existing definition is discarded and completely replaced with the newly provided one. See withAddedOrUpdated(KeyspaceMetadata) if you wish the provided definition to be "merged" with the existing one instead.

Parameters:

keyspace - the keyspace metadata to add, or replace the existing definition with.

Returns:

the newly created object.

withAddedOrReplaced

public Keyspaces withAddedOrReplaced(Keyspaces keyspaces)

Calls withAddedOrReplaced(KeyspaceMetadata) on all the keyspaces of the provided Keyspaces.

Parameters:

keyspaces - the keyspaces to add, or replace if existing.

Returns:

the newly created object.

validate

public void validate()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

size

public int size()

diff

public static Keyspaces.KeyspacesDiff diff(Keyspaces before,
 Keyspaces after)