java.lang.Object
- org.apache.accumulo.core.clientImpl.Namespaces

```
public class Namespaces
extends Object
```

Field Summary

Fields
Modifier and Type	Field	Description
`static Validator<String>`	`NOT_ACCUMULO`
`static Validator<String>`	`NOT_DEFAULT`
`static Validator<String>`	`VALID_NAME`
`static String`	`VALID_NAME_REGEX`

Constructor Summary

Constructors
Constructor Description

Namespaces()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`exists(ClientContext context, NamespaceId namespaceId)`
`static SortedMap<NamespaceId,String>`	`getIdToNameMap(ClientContext context)`	Return sorted map with key = ID, value = namespaceName
`static NamespaceId`	`getNamespaceId(ClientContext context, String namespaceName)`	Look for namespace ID in ZK.
`static String`	`getNamespaceName(ClientContext context, NamespaceId namespaceId)`	Look for namespace name in ZK.
`static SortedMap<String,NamespaceId>`	`getNameToIdMap(ClientContext context)`	Return sorted map with key = namespaceName, value = ID
`static List<TableId>`	`getTableIds(ClientContext context, NamespaceId namespaceId)`
`static List<String>`	`getTableNames(ClientContext context, NamespaceId namespaceId)`
`static NamespaceId`	`lookupNamespaceId(ClientContext context, String namespaceName)`	Look for namespace ID in ZK.
`static boolean`	`namespaceNameExists(ClientContext context, String namespaceName)`	Return true if namespace name exists

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VALID_NAME_REGEX

public static final String VALID_NAME_REGEX

See Also:: Constant Field Values

VALID_NAME

public static final Validator<String> VALID_NAME

NOT_DEFAULT

public static final Validator<String> NOT_DEFAULT

NOT_ACCUMULO

public static final Validator<String> NOT_ACCUMULO

Constructor Detail
- Namespaces
```
public Namespaces()
```

Method Detail

exists

public static boolean exists(ClientContext context,
                             NamespaceId namespaceId)

getTableIds

public static List<TableId> getTableIds(ClientContext context,
                                        NamespaceId namespaceId)
                                 throws NamespaceNotFoundException

Throws:: NamespaceNotFoundException

getTableNames

public static List<String> getTableNames(ClientContext context,
                                         NamespaceId namespaceId)
                                  throws NamespaceNotFoundException

Throws:: NamespaceNotFoundException

getIdToNameMap

public static SortedMap<NamespaceId,String> getIdToNameMap(ClientContext context)

Return sorted map with key = ID, value = namespaceName

getNameToIdMap

public static SortedMap<String,NamespaceId> getNameToIdMap(ClientContext context)

Return sorted map with key = namespaceName, value = ID

getNamespaceId

public static NamespaceId getNamespaceId(ClientContext context,
                                         String namespaceName)
                                  throws NamespaceNotFoundException

Look for namespace ID in ZK. Throw NamespaceNotFoundException if not found.

Throws:: NamespaceNotFoundException

lookupNamespaceId

public static NamespaceId lookupNamespaceId(ClientContext context,
                                            String namespaceName)

Look for namespace ID in ZK. Fail quietly by logging and returning null.

namespaceNameExists

public static boolean namespaceNameExists(ClientContext context,
                                          String namespaceName)

Return true if namespace name exists

getNamespaceName

public static String getNamespaceName(ClientContext context,
                                      NamespaceId namespaceId)
                               throws NamespaceNotFoundException

Look for namespace name in ZK. Throw NamespaceNotFoundException if not found.

Throws:: NamespaceNotFoundException

Class Namespaces