org.apache.cassandra.auth
Class DataResource

java.lang.Object
  org.apache.cassandra.auth.DataResource

All Implemented Interfaces:

IResource

public class DataResource
extends java.lang.Object
implements IResource

The primary type of resource in Cassandra. Used to represent a column family or a keyspace or the root level "data" resource. "data" - the root level data resource. "data/keyspace_name" - keyspace-level data resource. "data/keyspace_name/column_family_name" - cf-level data resource.

Method Summary

static DataResource	columnFamily(java.lang.String keyspace, java.lang.String columnFamily) Creates a DataResource instance representing a column family.
boolean	equals(java.lang.Object o)
boolean	exists()
static DataResource	fromName(java.lang.String name) Parses a data resource name into a DataResource instance.
java.lang.String	getColumnFamily()
java.lang.String	getKeyspace()
java.lang.String	getName()
IResource	getParent() Gets next resource in the hierarchy.
int	hashCode()
boolean	hasParent() Indicates whether or not this resource has a parent in the hierarchy.
boolean	isColumnFamilyLevel()
boolean	isKeyspaceLevel()
boolean	isRootLevel()
static DataResource	keyspace(java.lang.String keyspace) Creates a DataResource representing a keyspace.
static DataResource	root()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

root

public static DataResource root()

Returns:

the root-level resource.

keyspace

public static DataResource keyspace(java.lang.String keyspace)

Creates a DataResource representing a keyspace.

Parameters:

keyspace - Name of the keyspace.

Returns:

DataResource instance representing the keyspace.

columnFamily

public static DataResource columnFamily(java.lang.String keyspace,
                                        java.lang.String columnFamily)

Creates a DataResource instance representing a column family.

Parameters:

keyspace - Name of the keyspace.

columnFamily - Name of the column family.

Returns:

DataResource instance representing the column family.

fromName

public static DataResource fromName(java.lang.String name)

Parses a data resource name into a DataResource instance.

Parameters:

name - Name of the data resource.

Returns:

DataResource instance matching the name.

getName

public java.lang.String getName()

Specified by:

getName in interface IResource

Returns:

Printable name of the resource.

getParent

public IResource getParent()

Description copied from interface: IResource

Gets next resource in the hierarchy. Call hasParent first to make sure there is one.

Specified by:

getParent in interface IResource

Returns:

Parent of the resource, if any. Throws IllegalStateException if it's the root-level resource.

isRootLevel

public boolean isRootLevel()

isKeyspaceLevel

public boolean isKeyspaceLevel()

isColumnFamilyLevel

public boolean isColumnFamilyLevel()

getKeyspace

public java.lang.String getKeyspace()

Returns:

keyspace of the resource. Throws IllegalStateException if it's the root-level resource.

getColumnFamily

public java.lang.String getColumnFamily()

Returns:

column family of the resource. Throws IllegalStateException if it's not a cf-level resource.

hasParent

public boolean hasParent()

Description copied from interface: IResource

Indicates whether or not this resource has a parent in the hierarchy. Please perform this check before calling getParent() method.

Specified by:

hasParent in interface IResource

Returns:

Whether or not the resource has a parent in the hierarchy.

exists

public boolean exists()

Specified by:

exists in interface IResource

Returns:

Whether or not the resource exists in Cassandra.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object