com.h3c.util.persistence.cassandra.query

Class TransReadAllDecorator<T extends TransportObject<? super T,?>>

java.lang.Object

com.h3c.util.persistence.cassandra.query.ReadQueryDecorator<List<T>,DataStoreContext>

com.h3c.util.persistence.cassandra.query.TransReadAllDecorator<T>

Type Parameters:

T - Type of the result of the query

All Implemented Interfaces:

ReadQuery<List<T>,DataStoreContext>

public class TransReadAllDecorator<T extends TransportObject<? super T,?>>
extends ReadQueryDecorator<List<T>,DataStoreContext>

This is a decorator for reading all rows of a table with locks.
If the query is transaction based, the query object should be decorated from the business logic with this decorator before sending it down to the DataStoreManager

Field Summary

Fields inherited from class com.h3c.util.persistence.cassandra.query.ReadQueryDecorator

delegate, log

Constructor Summary

Constructors

Constructor and Description
TransReadAllDecorator(ReadQuery<List<T>,DataStoreContext> query)

Method Summary

Methods

Modifier and Type	Method and Description
List<T>	execute(DataStoreContext context) This is the single execute method provided by the ReadQuery interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

TransReadAllDecorator

public TransReadAllDecorator(ReadQuery<List<T>,DataStoreContext> query)

Method Detail

execute

public List<T> execute(DataStoreContext context)
                                                     throws Exception

Description copied from interface: ReadQuery

This is the single execute method provided by the ReadQuery interface. The application/business logic prepares a read query and as the last step, calls this method to transmit data to the underlying tiers. This data is read using DAO and Entity Manager.

Parameters:

context - - The DataStore context. Provides the context to the query.

Returns:

Transport object that has been read.

Throws:

Exception