org.datanucleus.store.query

Class AbstractStoredProcedureQuery

java.lang.Object

org.datanucleus.store.query.Query

org.datanucleus.store.query.AbstractStoredProcedureQuery

All Implemented Interfaces:

Serializable, ExecutionContextListener

public abstract class AbstractStoredProcedureQuery
extends Query

Abstract representation of a stored procedure query.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AbstractStoredProcedureQuery.StoredProcedureParameter

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

Query.SubqueryDefinition

Field Summary

Fields

Modifier and Type	Field and Description
protected Map	outputParamValues Repository for holding output parameter values after execution.
protected String	procedureName
protected Class[]	resultClasses Result classes for the result sets (optional).
protected QueryResultMetaData[]	resultMetaDatas MetaData defining the results of the query (optional).
protected int	resultSetNumber
protected Set<AbstractStoredProcedureQuery.StoredProcedureParameter>	storedProcParams

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

BULK_DELETE, BULK_UPDATE, candidateClass, candidateClassName, clr, compilation, ec, explicitParameters, explicitVariables, EXTENSION_CHECK_UNUSED_PARAMETERS, EXTENSION_COMPILATION_CACHED, EXTENSION_EVALUATE_IN_MEMORY, EXTENSION_FLUSH_BEFORE_EXECUTION, EXTENSION_LOAD_RESULTS_AT_COMMIT, EXTENSION_MULTITHREAD, EXTENSION_RESULT_CACHE_TYPE, EXTENSION_RESULT_SIZE_METHOD, EXTENSION_RESULTS_CACHED, EXTENSION_USE_FETCH_PLAN, extensions, filter, from, fromInclNo, fromInclParam, grouping, having, ignoreCache, implicitParameters, imports, inputParameters, LOCALISER, ordering, OTHER, parameterNames, parsedImports, queryResults, range, result, resultClass, resultClassName, resultDistinct, SELECT, storeMgr, subclasses, subqueries, tasks, toExclNo, toExclParam, type, unique, unmodifiable, update

Constructor Summary

Constructors

Constructor and Description
AbstractStoredProcedureQuery(StoreManager storeMgr, ExecutionContext ec, AbstractStoredProcedureQuery query) Constructs a new query instance from the existing query.
AbstractStoredProcedureQuery(StoreManager storeMgr, ExecutionContext ec, String procName) Constructs a new query instance having the same criteria as the given query.

Method Summary

Methods

Modifier and Type	Method and Description
String	getLanguage() Accessor for the query language.
abstract Object	getNextResults() Accessor for the next result set.
Object	getOutputParameterValue(int pos) Accessor for the value of the output parameter at the specified position.
Object	getOutputParameterValue(String name) Accessor for the value of the output parameter with the specified name.
abstract int	getUpdateCount() Accessor for the update count.
abstract boolean	hasMoreResults() Accessor for whether there are more results after the current one.
void	registerParameter(int pos, Class type, StoredProcQueryParameterMode mode)
void	registerParameter(String name, Class type, StoredProcQueryParameterMode mode)
void	setCandidates(Collection pcs) Set the candidate Collection to query.
void	setCandidates(Extent pcs) Set the candidate Extent to query.
void	setResultClasses(Class[] resultClasses) Set the result class for the results.
void	setResultMetaData(QueryResultMetaData[] qrmds) Method to set the MetaData defining the result.

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, compileInternal, declareExplicitParameters, declareExplicitVariables, declareImports, deepFindSymbolForParameterInCompilation, deletePersistentAll, deletePersistentAll, deletePersistentAll, deregisterTask, discardCompiled, equals, execute, executeQuery, executeWithArray, executeWithMap, executionContextClosing, getBooleanExtensionProperty, getCandidateClass, getCandidateClassName, getCompilation, getDatastoreReadTimeoutMillis, getDatastoreWriteTimeoutMillis, getExecutionContext, getExplicitParameters, getExplicitVariables, getExtension, getExtensions, getFetchPlan, getFilter, getFrom, getGrouping, getHaving, getIgnoreCache, getImplicitParameters, getImports, getInputParameters, 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, performDeletePersistentAll, performExecute, prepareDatastore, processesRangeInDatastoreQuery, registerTask, resolveClassDeclaration, setCacheResults, setCandidateClass, setCandidateClassName, setCompilation, setDatastoreReadTimeoutMillis, setDatastoreWriteTimeoutMillis, setExtensions, setFetchPlan, setFilter, setFrom, setGrouping, setHaving, setIgnoreCache, setImplicitParameter, setImplicitParameter, 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, toString, wait, wait, wait

Field Detail

procedureName

protected String procedureName

storedProcParams

protected Set<AbstractStoredProcedureQuery.StoredProcedureParameter> storedProcParams

resultSetNumber

protected int resultSetNumber

resultMetaDatas

protected QueryResultMetaData[] resultMetaDatas

MetaData defining the results of the query (optional).

resultClasses

protected Class[] resultClasses

Result classes for the result sets (optional).

outputParamValues

protected Map outputParamValues

Repository for holding output parameter values after execution.

Constructor Detail

AbstractStoredProcedureQuery

public AbstractStoredProcedureQuery(StoreManager storeMgr,
                            ExecutionContext ec,
                            AbstractStoredProcedureQuery query)

Constructs a new query instance from the existing query.

Parameters:

storeMgr - StoreManager for this query

ec - ExecutionContext

query - Existing query

AbstractStoredProcedureQuery

public AbstractStoredProcedureQuery(StoreManager storeMgr,
                            ExecutionContext ec,
                            String procName)

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

Parameters:

storeMgr - StoreManager for this query

ec - The ExecutionContext

procName - Name of the stored procedure in the datastore

Method Detail

getLanguage

public String getLanguage()

Description copied from class: Query

Accessor for the query language.

Overrides:

getLanguage in class Query

Returns:

Query language

setCandidates

public void setCandidates(Extent pcs)

Description copied from class: Query

Set the candidate Extent to query. To be implemented by extensions.

Specified by:

setCandidates in class Query

Parameters:

pcs - the Candidate Extent.

setCandidates

public void setCandidates(Collection pcs)

Description copied from class: Query

Set the candidate Collection to query. To be implemented by extensions.

Specified by:

setCandidates in class Query

Parameters:

pcs - the Candidate collection.

setResultMetaData

public void setResultMetaData(QueryResultMetaData[] qrmds)

Method to set the MetaData defining the result. Setting this will unset the resultClass.

Parameters:

qrmds - Query Result MetaData

setResultClasses

public void setResultClasses(Class[] resultClasses)

Set the result class for the results. Setting this will unset the resultMetaData.

Parameters:

resultClasses - The result class

registerParameter

public void registerParameter(int pos,
                     Class type,
                     StoredProcQueryParameterMode mode)

registerParameter

public void registerParameter(String name,
                     Class type,
                     StoredProcQueryParameterMode mode)

hasMoreResults

public abstract boolean hasMoreResults()

Accessor for whether there are more results after the current one.

Returns:

Whether there are more results

getNextResults

public abstract Object getNextResults()

Accessor for the next result set.

Returns:

Next results

getUpdateCount

public abstract int getUpdateCount()

Accessor for the update count.

Returns:

Update count

getOutputParameterValue

public Object getOutputParameterValue(int pos)

Accessor for the value of the output parameter at the specified position. Only to be called after execute().

Parameters:

pos - Position

Returns:

The value

getOutputParameterValue

public Object getOutputParameterValue(String name)

Accessor for the value of the output parameter with the specified name. Only to be called after execute().

Parameters:

name - Name of the parameter

Returns:

The value