eu.fbk.knowledgestore.datastore

Class SolrDataStore

java.lang.Object

eu.fbk.knowledgestore.datastore.SolrDataStore

All Implemented Interfaces:

DataStore, Component, Closeable, AutoCloseable

public class SolrDataStore
extends Object
implements DataStore

Created with IntelliJ IDEA. User: alessio Date: 08/09/14 Time: 17:57 To change this template use File | Settings | File Templates.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	SolrDataStore.SolrTransaction

Field Summary

Fields

Modifier and Type	Field and Description
com.zaxxer.hikari.HikariDataSource	dataSource

Fields inherited from interface eu.fbk.knowledgestore.datastore.DataStore

SUPPORTED_TYPES

Constructor Summary

Constructors

Constructor and Description
SolrDataStore()

Method Summary

Modifier and Type	Method and Description
DataTransaction	begin(boolean readOnly) Begins a new read-only / read-write DataStore transaction.
void	close() Closes this Component object.
void	init() Initializes the Component with the supplied Runtime object.

Methods inherited from class java.lang.Object

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

Field Detail

dataSource

public com.zaxxer.hikari.HikariDataSource dataSource

Constructor Detail

SolrDataStore

public SolrDataStore()

Method Detail

begin

public DataTransaction begin(boolean readOnly)
                      throws DataCorruptedException,
                             IOException,
                             IllegalStateException

Description copied from interface: DataStore

Begins a new read-only / read-write DataStore transaction. All the accesses to a DataStore must occur in the scope of a transaction, that must be ended (possibly committing the modifications done) as soon as possible to allow improving throughput.

Specified by:

begin in interface DataStore

Parameters:

readOnly - true if the transaction is not allowed to modify the contents of the DataStore (this allows for optimizing accesses).

Returns:

the created transaction

Throws:

DataCorruptedException - in case a transaction cannot be started due to the DataStore persistent data being damaged or non-existing (this may trigger some external recovery procedure)

IOException - if another IO error occurs while starting the transaction

IllegalStateException - if the DataStore object has been already closed

init

public void init()
          throws IOException,
                 IllegalStateException

Description copied from interface: Component

Initializes the Component with the supplied Runtime object. This method is called after the instantiation of a Component and before any other instance method is called. It provides a Runtime that can be used to access runtime services such as locking, serialization and filesystem access. The Component is allowed to perform any initialization operation that is necessary in order to become functional; on failure, these operations may result in a IOException being thrown.

Specified by:

init in interface Component

Throws:

IOException - in case initialization fails

IllegalStateException - in case the component has already been initialized or closed

close

public void close()

Description copied from interface: Component

Closes this Component object. If the component has been initialized, closing a it causes any allocated resource to be freed and any operation or transaction ongoing within the component being aborted; in case the component has not been initialized yet, or close() has already being called, calling this method has no effect. Note that the operation affects only the local Component object and not any remote service this object may rely on to implement its functionalities; in particular, such a remote service is not shutdown by the operation, so that it can be accessed by other Component instances possibly running in other (virtual) machines. Similarly, closing a Component object has no impact on stored data, that continues to be persisted and will be accessed unchanged (provided no external modification occurs) the next time a similarly configured Component is created.

Specified by:

close in interface Component

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable