Class Key (2.23.0)

public final class Key extends IncompleteKey

A key that is guaranteed to be complete and could be used to reference a Google Cloud Datastore Entity. This class is immutable. See Also: Google Cloud Datastore Entities, Properties, and Keys

Inheritance

Object > BaseKey > IncompleteKey > Key

Inherited Members

BaseKey.equals(Object)

BaseKey.getAncestors()

BaseKey.getDatabaseId()

BaseKey.getKind()

BaseKey.getNamespace()

BaseKey.getProjectId()

BaseKey.hashCode()

BaseKey.toString()

IncompleteKey.getParent()

IncompleteKey.newBuilder(IncompleteKey)

IncompleteKey.newBuilder(Key,String)

IncompleteKey.newBuilder(String,String)

IncompleteKey.newBuilderWithDatabaseId(String,String,String)

Object.clone()

Object.finalize()

Object.getClass()

Object.notify()

Object.notifyAll()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

fromUrlSafe(String urlSafe)

public static Key fromUrlSafe(String urlSafe)

Create a Key given its URL safe encoded form.

Parameter
Name	Description
`urlSafe`	`String`

Returns
Type	Description
`Key`

newBuilder(IncompleteKey copyFrom, String name)

public static Key.Builder newBuilder(IncompleteKey copyFrom, String name)

Parameters
Name	Description
`copyFrom`	`IncompleteKey`
`name`	`String`

Returns
Type	Description
`Key.Builder`

newBuilder(IncompleteKey copyFrom, long id)

public static Key.Builder newBuilder(IncompleteKey copyFrom, long id)

Parameters
Name	Description
`copyFrom`	`IncompleteKey`
`id`	`long`

Returns
Type	Description
`Key.Builder`

newBuilder(Key copyFrom)

public static Key.Builder newBuilder(Key copyFrom)

Parameter
Name	Description
`copyFrom`	`Key`

Returns
Type	Description
`Key.Builder`

newBuilder(Key parent, String kind, String name)

public static Key.Builder newBuilder(Key parent, String kind, String name)

Parameters
Name	Description
`parent`	`Key`
`kind`	`String`
`name`	`String`

Returns
Type	Description
`Key.Builder`

newBuilder(Key parent, String kind, long id)

public static Key.Builder newBuilder(Key parent, String kind, long id)

Parameters
Name	Description
`parent`	`Key`
`kind`	`String`
`id`	`long`

Returns
Type	Description
`Key.Builder`

newBuilder(String projectId, String kind, String name)

public static Key.Builder newBuilder(String projectId, String kind, String name)

Parameters
Name	Description
`projectId`	`String`
`kind`	`String`
`name`	`String`

Returns
Type	Description
`Key.Builder`

newBuilder(String projectId, String kind, String name, String databaseId)

public static Key.Builder newBuilder(String projectId, String kind, String name, String databaseId)

Parameters
Name	Description
`projectId`	`String`
`kind`	`String`
`name`	`String`
`databaseId`	`String`

Returns
Type	Description
`Key.Builder`

newBuilder(String projectId, String kind, long id)

public static Key.Builder newBuilder(String projectId, String kind, long id)

Parameters
Name	Description
`projectId`	`String`
`kind`	`String`
`id`	`long`

Returns
Type	Description
`Key.Builder`

newBuilder(String projectId, String kind, long id, String databaseId)

public static Key.Builder newBuilder(String projectId, String kind, long id, String databaseId)

Parameters
Name	Description
`projectId`	`String`
`kind`	`String`
`id`	`long`
`databaseId`	`String`

Returns
Type	Description
`Key.Builder`

Methods

getId()

public Long getId()

Returns the key's id or null if it has a name instead.

Returns
Type	Description
`Long`

getName()

public String getName()

Returns the key's name or null if it has an id instead.

Returns
Type	Description
`String`

getNameOrId()

public Object getNameOrId()

Returns the key's ID (as Long) or name (as String). Never null.

Returns
Type	Description
`Object`

hasId()

public boolean hasId()

Returns
Type	Description
`boolean`

hasName()

public boolean hasName()

Returns
Type	Description
`boolean`

toUrlSafe()

public String toUrlSafe()

Returns the key in an encoded form that can be used as part of a URL.

Returns
Type	Description
`String`