org.datanucleus.store.cassandra.query

Class CQLQuery

java.lang.Object

org.datanucleus.store.query.Query<T>

org.datanucleus.store.query.AbstractJavaQuery

org.datanucleus.store.cassandra.query.CQLQuery

All Implemented Interfaces:

Serializable, org.datanucleus.ExecutionContextListener

public class CQLQuery
extends org.datanucleus.store.query.AbstractJavaQuery

CQL query for Cassandra. Allows the user to execute a CQL query and return the results in the form "List<Object[]>".

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.datanucleus.store.query.Query

org.datanucleus.store.query.Query.QueryType, org.datanucleus.store.query.Query.SubqueryDefinition

Field Summary

Fields

Modifier and Type	Field and Description
protected CassandraQueryCompilation	datastoreCompilation The compilation of the query for this datastore.

Fields inherited from class org.datanucleus.store.query.AbstractJavaQuery

candidateCollection, singleString

Fields inherited from class org.datanucleus.store.query.Query

candidateClass, candidateClassName, clr, compilation, ec, explicitParameters, explicitVariables, EXTENSION_CHECK_UNUSED_PARAMETERS, EXTENSION_CLOSE_RESULTS_AT_EC_CLOSE, EXTENSION_COMPILATION_CACHED, EXTENSION_EVALUATE_IN_MEMORY, EXTENSION_EXCLUDE_SUBCLASSES, EXTENSION_FLUSH_BEFORE_EXECUTION, EXTENSION_JDOQL_STRICT, EXTENSION_JPQL_STRICT, EXTENSION_LOAD_RESULTS_AT_COMMIT, EXTENSION_MULTITHREAD, EXTENSION_RESULT_CACHE_TYPE, EXTENSION_RESULT_SIZE_METHOD, EXTENSION_RESULTS_CACHED, EXTENSION_SQL_SYNTAX_CHECKS, EXTENSION_USE_FETCH_PLAN, extensions, filter, from, fromInclNo, fromInclParam, grouping, having, ignoreCache, implicitParameters, imports, inputParameters, insertFields, insertSelectQuery, LANGUAGE_JDOQL, LANGUAGE_JPQL, LANGUAGE_SQL, ordering, parameterNames, parsedImports, queryResults, range, result, resultClass, resultClassName, resultDistinct, storeMgr, subclasses, subqueries, tasks, toExclNo, toExclParam, type, unique, unmodifiable, update

Constructor Summary

Constructors

Constructor and Description
CQLQuery(org.datanucleus.store.StoreManager storeMgr, org.datanucleus.ExecutionContext ec) Constructs a new query instance that uses the given execution context.
CQLQuery(org.datanucleus.store.StoreManager storeMgr, org.datanucleus.ExecutionContext ec, CQLQuery q) Constructs a new query instance having the same criteria as the given query.
CQLQuery(org.datanucleus.store.StoreManager storeMgr, org.datanucleus.ExecutionContext ec, String query) Constructor for a JDOQL query where the query is specified using the "Single-String" format.

Method Summary

Modifier and Type	Method and Description
void	compileGeneric(Map parameterValues)
protected void	compileInternal(Map parameterValues)
String	getSingleStringQuery()
protected Object	performExecute(Map parameters)

Methods inherited from class org.datanucleus.store.query.AbstractJavaQuery

dereferenceFilter, discardCompiled, evaluateInMemory, performDeletePersistentAll, setCandidates, setCandidates, toString

Methods inherited from class org.datanucleus.store.query.Query

addExtension, addSubquery, applyImplicitParameterValueToCompilation, applyImplicitParameterValueToSubqueries, assertIsModifiable, assertIsOpen, assertSupportsCancel, cancel, cancel, cancelTaskObject, checkForMissingParameters, checkParameterTypesAgainstCompilation, checkUnusedParameters, close, closeAll, compile, declareExplicitParameters, declareExplicitVariables, declareImports, deepFindSymbolForParameterInCompilation, deletePersistentAll, deletePersistentAll, deletePersistentAll, deregisterTask, equals, execute, executeQuery, executeWithArray, executeWithMap, executionContextClosing, getBooleanExtensionProperty, getCandidateClass, getCandidateClassMetaData, getCandidateClassName, getCompilation, getDatastoreReadTimeoutMillis, getDatastoreWriteTimeoutMillis, getExecutionContext, getExplicitParametersDeclaration, getExplicitVariablesDeclaration, getExtension, getExtensions, getFetchPlan, getFilter, getFrom, getGrouping, getHaving, getIgnoreCache, getImplicitParameters, getImportsDeclaration, getInputParameters, getInsertFields, getInsertSelectQuery, getLanguage, getNativeQuery, getOrdering, getParameterMapForValues, getParsedImports, getQueryManager, getRange, getRangeFromIncl, getRangeFromInclParam, getRangeToExcl, getRangeToExclParam, getResult, getResultClass, getResultClassName, getResultDistinct, getSerializeRead, getStoreManager, getStringExtensionProperty, getSubqueryForVariable, getSupportedExtensions, getType, getUpdate, hashCode, hasSubqueryForVariable, isCompiled, isSubclasses, isUnique, isUnmodifiable, prepareDatastore, processesRangeInDatastoreQuery, registerTask, resolveClassDeclaration, setCacheResults, setCandidateClass, setCandidateClassName, setCompilation, setDatastoreReadTimeoutMillis, setDatastoreWriteTimeoutMillis, setExtensions, setFetchPlan, setFilter, setFrom, setGrouping, setHaving, setIgnoreCache, setImplicitParameter, setImplicitParameter, setInsertFields, setInsertSelectQuery, setOrdering, setRange, setRange, setResult, setResultClass, setResultClassName, setResultDistinct, setResultMetaData, setSerializeRead, setSubclasses, setType, setUnique, setUnmodifiable, setUpdate, shouldReturnSingleRow, supportsTimeout, useCaching, useFetchPlan, useResultsCaching

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

datastoreCompilation

protected transient CassandraQueryCompilation datastoreCompilation

The compilation of the query for this datastore. Not applicable if totally in-memory.

Constructor Detail

CQLQuery

public CQLQuery(org.datanucleus.store.StoreManager storeMgr,
                org.datanucleus.ExecutionContext ec)

Constructs a new query instance that uses the given execution context.

Parameters:

storeMgr - StoreManager for this query

ec - execution context

CQLQuery

public CQLQuery(org.datanucleus.store.StoreManager storeMgr,
                org.datanucleus.ExecutionContext ec,
                CQLQuery q)

Constructs a new query instance having the same criteria as the given query.

Parameters:

storeMgr - StoreManager for this query

ec - execution context

q - The query from which to copy criteria.

CQLQuery

public CQLQuery(org.datanucleus.store.StoreManager storeMgr,
                org.datanucleus.ExecutionContext ec,
                String query)

Constructor for a JDOQL query where the query is specified using the "Single-String" format.

Parameters:

storeMgr - StoreManager for this query

ec - execution context

query - The query string

Method Detail

getSingleStringQuery

public String getSingleStringQuery()

Specified by:

getSingleStringQuery in class org.datanucleus.store.query.AbstractJavaQuery

compileGeneric

public void compileGeneric(Map parameterValues)

Specified by:

compileGeneric in class org.datanucleus.store.query.AbstractJavaQuery

compileInternal

protected void compileInternal(Map parameterValues)

Specified by:

compileInternal in class org.datanucleus.store.query.Query

performExecute

protected Object performExecute(Map parameters)

Specified by:

performExecute in class org.datanucleus.store.query.Query