org.apache.cassandra.schema

Class SchemaConstants

java.lang.Object

org.apache.cassandra.schema.SchemaConstants

public final class SchemaConstants
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	AUTH_KEYSPACE_NAME
static java.lang.String	DISTRIBUTED_KEYSPACE_NAME
static java.util.UUID	emptyVersion
static java.util.List<java.lang.String>	LEGACY_AUTH_TABLES
static java.util.Set<java.lang.String>	LOCAL_SYSTEM_KEYSPACE_NAMES
static int	NAME_LENGTH longest permissible KS or CF name.
static java.util.regex.Pattern	PATTERN_WORD_CHARS
static java.util.Set<java.lang.String>	REPLICATED_SYSTEM_KEYSPACE_NAMES
static java.lang.String	SCHEMA_KEYSPACE_NAME
static java.lang.String	SYSTEM_KEYSPACE_NAME
static java.lang.String	TRACE_KEYSPACE_NAME
static java.lang.String	VIRTUAL_SCHEMA
static java.lang.String	VIRTUAL_VIEWS

Constructor Summary

Constructors

Constructor and Description
SchemaConstants()

Method Summary

Modifier and Type	Method and Description
static boolean	isLocalSystemKeyspace(java.lang.String keyspaceName)
static boolean	isReplicatedSystemKeyspace(java.lang.String keyspaceName)
static boolean	isSystemKeyspace(java.lang.String keyspaceName) Checks if the keyspace is a system keyspace (local replicated or virtual).
static boolean	isValidName(java.lang.String name)
static boolean	isVirtualSystemKeyspace(java.lang.String keyspaceName) Checks if the keyspace is a virtual system keyspace.

Methods inherited from class java.lang.Object

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

Field Detail

PATTERN_WORD_CHARS

public static final java.util.regex.Pattern PATTERN_WORD_CHARS

SYSTEM_KEYSPACE_NAME

public static final java.lang.String SYSTEM_KEYSPACE_NAME

See Also:

Constant Field Values

SCHEMA_KEYSPACE_NAME

public static final java.lang.String SCHEMA_KEYSPACE_NAME

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Constant Field Values

TRACE_KEYSPACE_NAME

public static final java.lang.String TRACE_KEYSPACE_NAME

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Constant Field Values

AUTH_KEYSPACE_NAME

public static final java.lang.String AUTH_KEYSPACE_NAME

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Constant Field Values

DISTRIBUTED_KEYSPACE_NAME

public static final java.lang.String DISTRIBUTED_KEYSPACE_NAME

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Constant Field Values

VIRTUAL_SCHEMA

public static final java.lang.String VIRTUAL_SCHEMA

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Constant Field Values

VIRTUAL_VIEWS

public static final java.lang.String VIRTUAL_VIEWS

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Constant Field Values

LOCAL_SYSTEM_KEYSPACE_NAMES

public static final java.util.Set<java.lang.String> LOCAL_SYSTEM_KEYSPACE_NAMES

REPLICATED_SYSTEM_KEYSPACE_NAMES

public static final java.util.Set<java.lang.String> REPLICATED_SYSTEM_KEYSPACE_NAMES

NAME_LENGTH

public static final int NAME_LENGTH

longest permissible KS or CF name. Our main concern is that filename not be more than 255 characters; the filename will contain both the KS and CF names. Since non-schema-name components only take up ~64 characters, we could allow longer names than this, but on Windows, the entire path should be not greater than 255 characters, so a lower limit here helps avoid problems. See CASSANDRA-4110.

See Also:

Constant Field Values

emptyVersion

public static final java.util.UUID emptyVersion

LEGACY_AUTH_TABLES

public static final java.util.List<java.lang.String> LEGACY_AUTH_TABLES

Constructor Detail

SchemaConstants

public SchemaConstants()

Method Detail

isValidName

public static boolean isValidName(java.lang.String name)

isLocalSystemKeyspace

public static boolean isLocalSystemKeyspace(java.lang.String keyspaceName)

Returns:

whether or not the keyspace is a really system one (w/ LocalStrategy, unmodifiable, hardcoded)

isReplicatedSystemKeyspace

public static boolean isReplicatedSystemKeyspace(java.lang.String keyspaceName)

Returns:

whether or not the keyspace is a replicated system ks (system_auth, system_traces, system_distributed)

isVirtualSystemKeyspace

public static boolean isVirtualSystemKeyspace(java.lang.String keyspaceName)

Checks if the keyspace is a virtual system keyspace.

Returns:

true if the keyspace is a virtual system keyspace, false otherwise.

isSystemKeyspace

public static boolean isSystemKeyspace(java.lang.String keyspaceName)

Checks if the keyspace is a system keyspace (local replicated or virtual).

Returns:

true if the keyspace is a system keyspace, false otherwise.