com.h3c.util.persistence.cassandra.query

Class WriteQueryLoggingDecorator<T,C>

java.lang.Object

com.h3c.util.persistence.cassandra.query.WriteQueryDecorator<T,C>

com.h3c.util.persistence.cassandra.query.WriteQueryLoggingDecorator<T,C>

Type Parameters:

T - Type of the query result.

C - Context for query execution

All Implemented Interfaces:

WriteQuery<T,C>

public class WriteQueryLoggingDecorator<T,C>
extends WriteQueryDecorator<T,C>

WriteQueryLoggingDecorator provides a Logging decoration to the write query.
The DataStoreManager should decorate a write query with this decorator if logging is enabled.

Constructor Summary

Constructors

Constructor and Description
WriteQueryLoggingDecorator(WriteQuery<T,C> update, org.slf4j.Logger log) Decorator for write query operations to avail logging support.

Method Summary

Methods

Modifier and Type	Method and Description
T	execute(C context) Execute WriteQuery with logging.

Methods inherited from class java.lang.Object

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

Constructor Detail

WriteQueryLoggingDecorator

public WriteQueryLoggingDecorator(WriteQuery<T,C> update,
                          org.slf4j.Logger log)

Decorator for write query operations to avail logging support.

Parameters:

update - WriteQuery to be executed

log - Instance of slf4j logger framework.

Method Detail

execute

public T execute(C context)
          throws Exception

Execute WriteQuery with logging.

Parameters:

context - Context of the query.

Returns:

Result of WriteQuery operation.

Throws:

NullPointerException - In case of context is null.

Exception - Throws Exception in case of any error in query execute.