org.apache.accumulo.core.client.impl
Class ConnectorImpl

java.lang.Object
  org.apache.accumulo.core.client.Connector
      org.apache.accumulo.core.client.impl.ConnectorImpl

public class ConnectorImpl
extends Connector

Constructor Summary

ConnectorImpl(Instance instance, String user, byte[] password)
Deprecated. Not for client use

Method Summary

BatchDeleter	createBatchDeleter(String tableName, Authorizations authorizations, int numQueryThreads, long maxMemory, long maxLatency, int maxWriteThreads) Factory method to create a BatchDeleter connected to Accumulo.
BatchScanner	createBatchScanner(String tableName, Authorizations authorizations, int numQueryThreads) Factory method to create a BatchScanner connected to Accumulo.
BatchWriter	createBatchWriter(String tableName, long maxMemory, long maxLatency, int maxWriteThreads) Factory method to create a BatchWriter connected to Accumulo.
MultiTableBatchWriter	createMultiTableBatchWriter(long maxMemory, long maxLatency, int maxWriteThreads) Factory method to create a Multi-Table BatchWriter connected to Accumulo.
Scanner	createScanner(String tableName, Authorizations authorizations) Factory method to create a Scanner connected to Accumulo.
Instance	getInstance() Accessor method for internal instance object.
InstanceOperations	instanceOperations() Retrieves an InstanceOperations object to modify instance configuration.
SecurityOperations	securityOperations() Retrieves a SecurityOperations object to perform user security operations, such as creating users.
TableOperations	tableOperations() Retrieves a TableOperations object to perform table functions, such as create and delete.
String	whoami() Get the current user for this connector

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectorImpl

@Deprecated
public ConnectorImpl(Instance instance,
                                String user,
                                byte[] password)
              throws AccumuloException,
                     AccumuloSecurityException

Deprecated. Not for client use

Use Instance.getConnector(String, byte[])

Parameters:

instance -

user -

password -

Throws:

AccumuloException

AccumuloSecurityException

See Also:

Instance.getConnector(String user, byte[] password)

Method Detail

getInstance

public Instance getInstance()

Description copied from class: Connector

Accessor method for internal instance object.

Overrides:

getInstance in class Connector

Returns:

the internal instance object

createBatchScanner

public BatchScanner createBatchScanner(String tableName,
                                       Authorizations authorizations,
                                       int numQueryThreads)
                                throws TableNotFoundException

Description copied from class: Connector

Factory method to create a BatchScanner connected to Accumulo.

Overrides:

createBatchScanner in class Connector

Parameters:

tableName - the name of the table to query

authorizations - A set of authorization labels that will be checked against the column visibility of each key in order to filter data. The authorizations passed in must be a subset of the accumulo user's set of authorizations. If the accumulo user has authorizations (A1, A2) and authorizations (A2, A3) are passed, then an exception will be thrown.

numQueryThreads - the number of concurrent threads to spawn for querying

Returns:

BatchScanner object for configuring and querying

Throws:

TableNotFoundException - when the specified table doesn't exist

createBatchDeleter

public BatchDeleter createBatchDeleter(String tableName,
                                       Authorizations authorizations,
                                       int numQueryThreads,
                                       long maxMemory,
                                       long maxLatency,
                                       int maxWriteThreads)
                                throws TableNotFoundException

Description copied from class: Connector

Factory method to create a BatchDeleter connected to Accumulo.

Overrides:

createBatchDeleter in class Connector

Parameters:

tableName - the name of the table to query and delete from

authorizations - A set of authorization labels that will be checked against the column visibility of each key in order to filter data. The authorizations passed in must be a subset of the accumulo user's set of authorizations. If the accumulo user has authorizations (A1, A2) and authorizations (A2, A3) are passed, then an exception will be thrown.

numQueryThreads - the number of concurrent threads to spawn for querying

maxMemory - size in bytes of the maximum memory to batch before writing

maxLatency - size in milliseconds; set to 0 or Long.MAX_VALUE to allow the maximum time to hold a batch before writing

maxWriteThreads - the maximum number of threads to use for writing data to the tablet servers

Returns:

BatchDeleter object for configuring and deleting

Throws:

TableNotFoundException - when the specified table doesn't exist

createBatchWriter

public BatchWriter createBatchWriter(String tableName,
                                     long maxMemory,
                                     long maxLatency,
                                     int maxWriteThreads)
                              throws TableNotFoundException

Description copied from class: Connector

Factory method to create a BatchWriter connected to Accumulo.

Overrides:

createBatchWriter in class Connector

Parameters:

tableName - the name of the table to insert data into

maxMemory - size in bytes of the maximum memory to batch before writing

maxLatency - time in milliseconds; set to 0 or Long.MAX_VALUE to allow the maximum time to hold a batch before writing

maxWriteThreads - the maximum number of threads to use for writing data to the tablet servers

Returns:

BatchWriter object for configuring and writing data to

Throws:

TableNotFoundException - when the specified table doesn't exist

createMultiTableBatchWriter

public MultiTableBatchWriter createMultiTableBatchWriter(long maxMemory,
                                                         long maxLatency,
                                                         int maxWriteThreads)

Description copied from class: Connector

Factory method to create a Multi-Table BatchWriter connected to Accumulo. Multi-table batch writers can queue data for multiple tables, which is good for ingesting data into multiple tables from the same source

Overrides:

createMultiTableBatchWriter in class Connector

Parameters:

maxMemory - size in bytes of the maximum memory to batch before writing

maxLatency - size in milliseconds; set to 0 or Long.MAX_VALUE to allow the maximum time to hold a batch before writing

maxWriteThreads - the maximum number of threads to use for writing data to the tablet servers

Returns:

MultiTableBatchWriter object for configuring and writing data to

createScanner

public Scanner createScanner(String tableName,
                             Authorizations authorizations)
                      throws TableNotFoundException

Description copied from class: Connector

Factory method to create a Scanner connected to Accumulo.

Overrides:

createScanner in class Connector

Parameters:

tableName - the name of the table to query data from

authorizations - A set of authorization labels that will be checked against the column visibility of each key in order to filter data. The authorizations passed in must be a subset of the accumulo user's set of authorizations. If the accumulo user has authorizations (A1, A2) and authorizations (A2, A3) are passed, then an exception will be thrown.

Returns:

Scanner object for configuring and querying data with

Throws:

TableNotFoundException - when the specified table doesn't exist

whoami

public String whoami()

Description copied from class: Connector

Get the current user for this connector

Overrides:

whoami in class Connector

Returns:

the user name

tableOperations

public TableOperations tableOperations()

Description copied from class: Connector

Retrieves a TableOperations object to perform table functions, such as create and delete.

Overrides:

tableOperations in class Connector

Returns:

an object to manipulate tables

securityOperations

public SecurityOperations securityOperations()

Description copied from class: Connector

Retrieves a SecurityOperations object to perform user security operations, such as creating users.

Overrides:

securityOperations in class Connector

Returns:

an object to modify users and permissions

instanceOperations

public InstanceOperations instanceOperations()

Description copied from class: Connector

Retrieves an InstanceOperations object to modify instance configuration.

Overrides:

instanceOperations in class Connector

Returns:

an object to modify instance configuration