org.apache.accumulo.core.client

Class ConditionalWriterConfig

java.lang.Object

org.apache.accumulo.core.client.ConditionalWriterConfig

public class ConditionalWriterConfig
extends Object

Since:

1.6.0

Constructor Summary

Constructors

Constructor and Description
ConditionalWriterConfig()

Method Summary

Methods

Modifier and Type	Method and Description
void	clearClassLoaderContext() Clears the current classloader context set on this scanner
Authorizations	getAuthorizations()
String	getClassLoaderContext() Returns the name of the current classloader context set on this scanner
Durability	getDurability()
int	getMaxWriteThreads()
long	getTimeout(TimeUnit timeUnit)
ConditionalWriterConfig	setAuthorizations(Authorizations auths) A set of authorization labels that will be checked against the column visibility of each key in order to filter data.
void	setClassLoaderContext(String classLoaderContext) Sets the name of the classloader context on this scanner.
ConditionalWriterConfig	setDurability(Durability durability) Sets the Durability for the mutation, if applied.
ConditionalWriterConfig	setMaxWriteThreads(int maxWriteThreads) Sets the maximum number of threads to use for writing data to the tablet servers.
ConditionalWriterConfig	setTimeout(long timeout, TimeUnit timeUnit) Sets the maximum amount of time an unresponsive server will be re-tried.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConditionalWriterConfig

public ConditionalWriterConfig()

Method Detail

setAuthorizations

public ConditionalWriterConfig setAuthorizations(Authorizations auths)

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.

Any condition that is not visible with this set of authorizations will fail.

setTimeout

public ConditionalWriterConfig setTimeout(long timeout,
                                 TimeUnit timeUnit)

Sets the maximum amount of time an unresponsive server will be re-tried. When this timeout is exceeded, the ConditionalWriter should return the mutation with an exception.
For no timeout, set to zero, or Long.MAX_VALUE with TimeUnit.MILLISECONDS.

TimeUnit.MICROSECONDS or TimeUnit.NANOSECONDS will be truncated to the nearest TimeUnit.MILLISECONDS.
If this truncation would result in making the value zero when it was specified as non-zero, then a minimum value of one TimeUnit.MILLISECONDS will be used.

Default: Long.MAX_VALUE (no timeout)

Parameters:

timeout - the timeout, in the unit specified by the value of timeUnit

timeUnit - determines how timeout will be interpreted

Returns:

this to allow chaining of set methods

Throws:

IllegalArgumentException - if timeout is less than 0

setMaxWriteThreads

public ConditionalWriterConfig setMaxWriteThreads(int maxWriteThreads)

Sets the maximum number of threads to use for writing data to the tablet servers.

Default: 3

Parameters:

maxWriteThreads - the maximum threads to use

Returns:

this to allow chaining of set methods

Throws:

IllegalArgumentException - if maxWriteThreads is non-positive

setDurability

public ConditionalWriterConfig setDurability(Durability durability)

Sets the Durability for the mutation, if applied.

Default: Durability.DEFAULT: use the table's durability configuration.

Returns:

this to allow chaining of set methods

Since:

1.7.0

getAuthorizations

public Authorizations getAuthorizations()

getTimeout

public long getTimeout(TimeUnit timeUnit)

getMaxWriteThreads

public int getMaxWriteThreads()

getDurability

public Durability getDurability()

setClassLoaderContext

public void setClassLoaderContext(String classLoaderContext)

Sets the name of the classloader context on this scanner. See the administration chapter of the user manual for details on how to configure and use classloader contexts.

Parameters:

classLoaderContext - name of the classloader context

Throws:

NullPointerException - if context is null

Since:

1.8.0

clearClassLoaderContext

public void clearClassLoaderContext()

Clears the current classloader context set on this scanner

Since:

1.8.0

getClassLoaderContext

public String getClassLoaderContext()

Returns the name of the current classloader context set on this scanner

Returns:

name of the current context

Since:

1.8.0