org.wso2.carbon.dataservices.core.description.query

Class CassandraQuery

java.lang.Object

org.wso2.carbon.dataservices.core.engine.XMLWriterHelper

org.wso2.carbon.dataservices.core.description.query.Query

org.wso2.carbon.dataservices.core.description.query.ExpressionQuery

org.wso2.carbon.dataservices.core.description.query.CassandraQuery

public class CassandraQuery
extends ExpressionQuery

This class represents Cassandra-CQL data services query implementation.

Constructor Summary

Constructors

Constructor and Description
CassandraQuery(DataService dataService, String queryId, String query, List<QueryParam> queryParams, Result result, String configId, EventTrigger inputEventTrigger, EventTrigger outputEventTrigger, Map<String,String> advancedProperties, String inputNamespace)

Method Summary

Modifier and Type	Method and Description
com.datastax.driver.core.Session	getSession()
com.datastax.driver.core.PreparedStatement	getStatement()
boolean	isNativeBatchRequestsSupported()
void	runPostQuery(Object result, XMLStreamWriter xmlWriter, InternalParamCollection params, int queryLevel) This method must be implemented by concrete implementations of this class, to provide the logic to execute the query.
Object	runPreQuery(InternalParamCollection params, int queryLevel) This method must be implemented by concrete implementations of this class, to provide the logic to execute the query.

Methods inherited from class org.wso2.carbon.dataservices.core.description.query.ExpressionQuery

createProcessedQuery, getParamCount, getQuery, init, isDynamicQuery, processDynamicQuery

Methods inherited from class org.wso2.carbon.dataservices.core.description.query.Query

addQueryPreprocessedObject, execute, getAdvancedProperties, getAndRemoveQueryPreprocessObject, getConfigId, getCurrentInternalParams, getDataService, getInputEventTrigger, getInputNamespace, getOutputEventTrigger, getQueryId, getQueryParams, getResult, hasResult, isPreBuildResult, isQueryPreprocessInitial, isQueryPreprocessSecondary, isUsingColumnNumbers, isWriteRow, resetCurrentInternalParams, resetQueryPreprocessing, setCurrentInternalParams, setQueryPreprocessingInitial, setQueryPreprocessingSecondary, writeResultEntry

Methods inherited from class org.wso2.carbon.dataservices.core.engine.XMLWriterHelper

addAttribute, endElement, getNamespace, setNamespace, startRowElement, startWrapperElement, writeResultElement

Methods inherited from class java.lang.Object

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

Constructor Detail

CassandraQuery

public CassandraQuery(DataService dataService,
                      String queryId,
                      String query,
                      List<QueryParam> queryParams,
                      Result result,
                      String configId,
                      EventTrigger inputEventTrigger,
                      EventTrigger outputEventTrigger,
                      Map<String,String> advancedProperties,
                      String inputNamespace)
               throws DataServiceFault

Throws:

DataServiceFault

Method Detail

getStatement

public com.datastax.driver.core.PreparedStatement getStatement()

getSession

public com.datastax.driver.core.Session getSession()

isNativeBatchRequestsSupported

public boolean isNativeBatchRequestsSupported()

runPreQuery

public Object runPreQuery(InternalParamCollection params,
                          int queryLevel)
                   throws DataServiceFault

Description copied from class: Query

This method must be implemented by concrete implementations of this class, to provide the logic to execute the query.

Specified by:

runPreQuery in class Query

Throws:

DataServiceFault

runPostQuery

public void runPostQuery(Object result,
                         XMLStreamWriter xmlWriter,
                         InternalParamCollection params,
                         int queryLevel)
                  throws DataServiceFault

Description copied from class: Query

This method must be implemented by concrete implementations of this class, to provide the logic to execute the query.

Specified by:

runPostQuery in class Query

Throws:

DataServiceFault