Package oracle.kv.table

Class ReadOptions

java.lang.Object

oracle.kv.table.ReadOptions

Direct Known Subclasses:

TableIteratorOptions

public class ReadOptions
extends java.lang.Object

ReadOptions is passed to read-only store operations to specify arguments that control non-default behavior related to consistency and operation timeouts.

The default behavior is configured when a store is opened using KVStoreConfig.

Since:

3.0

Constructor Summary

Constructors

Constructor	Description
ReadOptions(Consistency consistency, long timeout, java.util.concurrent.TimeUnit timeoutUnit)	Creates a ReadOptions with the specified parameters.

Method Summary

Modifier and Type	Method	Description
Consistency	getConsistency()	Gets the consistency used for a read operation.
long	getTimeout()	Gets the timeout, which is an upper bound on the time interval for processing the operation.
java.util.concurrent.TimeUnit	getTimeoutUnit()	Gets the unit of the timeout parameter, and may be null only if getTimeout() returns zero.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReadOptions

public ReadOptions(Consistency consistency,
                   long timeout,
                   java.util.concurrent.TimeUnit timeoutUnit)

Creates a ReadOptions with the specified parameters.

If consistency is null, the default consistency is used.

If timeout is zero the default request timeout is used.

The timeout parameter is an upper bound on the time interval for processing the operation. A best effort is made not to exceed the specified limit. If zero, the default request timeout is used.

If timeout is not 0, the timeoutUnit parameter must not be null.

Parameters:

consistency - the read consistency to use or null

timeout - the timeout value to use

timeoutUnit - the TimeUnit used by the timeout parameter or null

Throws:

java.lang.IllegalArgumentException - if timeout is negative

java.lang.IllegalArgumentException - if timeout is > 0 and timeoutUnit is null

Method Detail

getConsistency

public Consistency getConsistency()

Gets the consistency used for a read operation. If null, the default consistency is used.

Returns:

the consistency used for a read operation

getTimeout

public long getTimeout()

Gets the timeout, which is an upper bound on the time interval for processing the operation. A best effort is made not to exceed the specified limit. If zero, the default request timeout is used.

Returns:

the timeout

getTimeoutUnit

public java.util.concurrent.TimeUnit getTimeoutUnit()

Gets the unit of the timeout parameter, and may be null only if getTimeout() returns zero.

Returns:

the timeout unit or null