javax.persistence

Interface StoredProcedureQuery

All Superinterfaces:

Query

public interface StoredProcedureQuery
extends Query

Interface used to control stored procedure query execution.

Stored procedure query execution may be controlled in accordance with the following:

• The setParameter methods are used to set the values of all required IN and INOUT parameters. It is not required to set the values of stored procedure parameters for which default values have been defined by the stored procedure.
• When getResultList and getSingleResult are called on a StoredProcedureQuery object, the provider will call execute on an unexecuted stored procedure query before processing getResultList or getSingleResult.
• When executeUpdate is called on a StoredProcedureQuery object, the provider will call execute on an unexecuted stored procedure query followed by getUpdateCount. The results of executeUpdate will be those of getUpdateCount.
• The execute method supports both the simple case where scalar results are passed back only via INOUT and OUT parameters as well as the most general case (multiple result sets and/or update counts, possibly also in combination with output parameter values).
• The execute method returns true if the first result is a result set, and false if it is an update count or there are no results other than through INOUT and OUT parameters, if any.
• If the execute method returns true, the pending result set can be obtained by calling getResultList or getSingleResult.
• The hasMoreResults method can then be used to test for further results.
• If execute or hasMoreResults returns false, the getUpdateCount method can be called to obtain the pending result if it is an update count. The getUpdateCount method will return either the update count (zero or greater) or -1 if there is no update count (i.e., either the next result is a result set or there is no next update count).
• For portability, results that correspond to JDBC result sets and update counts need to be processed before the values of any INOUT or OUT parameters are extracted.
• After results returned through getResultList and getUpdateCount have been exhausted, results returned through INOUT and OUT parameters can be retrieved.
• The getOutputParameterValue methods are used to retrieve the values passed back from the procedure through INOUT and OUT parameters.
• When using REF_CURSOR parameters for result sets the update counts should be exhausted before calling getResultList to retrieve the result set. Alternatively, the REF_CURSOR result set can be retrieved through getOutputParameterValue. Result set mappings will be applied to results corresponding to REF_CURSOR parameters in the order the REF_CURSOR parameters were registered with the query.
• In the simplest case, where results are returned only via INOUT and OUT parameters, execute can be followed immediately by calls to getOutputParameterValue.

Since:

Java Persistence 2.1

See Also:

Query, Parameter

Method Summary

Modifier and Type	Method and Description
boolean	execute() Return true if the first result corresponds to a result set, and false if it is an update count or if there are no results other than through INOUT and OUT parameters, if any.
int	executeUpdate() Return the update count of -1 if there is no pending result or if the first result is not an update count.
Object	getOutputParameterValue(int position) Retrieve a value passed back from the procedure through an INOUT or OUT parameter.
Object	getOutputParameterValue(String parameterName) Retrieve a value passed back from the procedure through an INOUT or OUT parameter.
List	getResultList() Retrieve the list of results from the next result set.
Object	getSingleResult() Retrieve a single result from the next result set.
int	getUpdateCount() Return the update count or -1 if there is no pending result or if the next result is not an update count.
boolean	hasMoreResults() Return true if the next result corresponds to a result set, and false if it is an update count or if there are no results other than through INOUT and OUT parameters, if any.
StoredProcedureQuery	registerStoredProcedureParameter(int position, Class type, ParameterMode mode) Register a positional parameter.
StoredProcedureQuery	registerStoredProcedureParameter(String parameterName, Class type, ParameterMode mode) Register a named parameter.
StoredProcedureQuery	setFlushMode(FlushModeType flushMode) Set the flush mode type to be used for the query execution.
StoredProcedureQuery	setHint(String hintName, Object value) Set a query property or hint.
StoredProcedureQuery	setParameter(int position, Calendar value, TemporalType temporalType) Bind an instance of java.util.Calendar to a positional parameter.
StoredProcedureQuery	setParameter(int position, Date value, TemporalType temporalType) Bind an instance of java.util.Date to a positional parameter.
StoredProcedureQuery	setParameter(int position, Object value) Bind an argument value to a positional parameter.
StoredProcedureQuery	setParameter(Parameter<Calendar> param, Calendar value, TemporalType temporalType) Bind an instance of java.util.Calendar to a Parameter object.
StoredProcedureQuery	setParameter(Parameter<Date> param, Date value, TemporalType temporalType) Bind an instance of java.util.Date to a Parameter object.
<T> StoredProcedureQuery	setParameter(Parameter<T> param, T value) Bind the value of a Parameter object.
StoredProcedureQuery	setParameter(String name, Calendar value, TemporalType temporalType) Bind an instance of java.util.Calendar to a named parameter.
StoredProcedureQuery	setParameter(String name, Date value, TemporalType temporalType) Bind an instance of java.util.Date to a named parameter.
StoredProcedureQuery	setParameter(String name, Object value) Bind an argument value to a named parameter.

Methods inherited from interface javax.persistence.Query

getFirstResult, getFlushMode, getHints, getLockMode, getMaxResults, getParameter, getParameter, getParameter, getParameter, getParameters, getParameterValue, getParameterValue, getParameterValue, getResultStream, isBound, setFirstResult, setLockMode, setMaxResults, unwrap

Method Detail

setHint

StoredProcedureQuery setHint(String hintName,
                             Object value)

Set a query property or hint. The hints elements may be used to specify query properties and hints. Properties defined by this specification must be observed by the provider. Vendor-specific hints that are not recognized by a provider must be silently ignored. Portable applications should not rely on the standard timeout hint. Depending on the database in use, this hint may or may not be observed.

Specified by:

setHint in interface Query

Parameters:

hintName - name of the property or hint

value - value for the property or hint

Returns:

the same query instance

Throws:

IllegalArgumentException - if the second argument is not valid for the implementation

setParameter

<T> StoredProcedureQuery setParameter(Parameter<T> param,
                                      T value)

Bind the value of a Parameter object.

Specified by:

setParameter in interface Query

Parameters:

param - parameter object

value - parameter value

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter does not correspond to a parameter of the query

setParameter

StoredProcedureQuery setParameter(Parameter<Calendar> param,
                                  Calendar value,
                                  TemporalType temporalType)

Bind an instance of java.util.Calendar to a Parameter object.

Specified by:

setParameter in interface Query

Parameters:

param - parameter object

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter does not correspond to a parameter of the query

setParameter

StoredProcedureQuery setParameter(Parameter<Date> param,
                                  Date value,
                                  TemporalType temporalType)

Bind an instance of java.util.Date to a Parameter object.

Specified by:

setParameter in interface Query

Parameters:

param - parameter object

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter does not correspond to a parameter of the query

setParameter

StoredProcedureQuery setParameter(String name,
                                  Object value)

Bind an argument value to a named parameter.

Specified by:

setParameter in interface Query

Parameters:

name - parameter name

value - parameter value

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter name does not correspond to a parameter of the query or if the argument is of incorrect type

setParameter

StoredProcedureQuery setParameter(String name,
                                  Calendar value,
                                  TemporalType temporalType)

Bind an instance of java.util.Calendar to a named parameter.

Specified by:

setParameter in interface Query

Parameters:

name - parameter name

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter name does not correspond to a parameter of the query or if the value argument is of incorrect type

setParameter

StoredProcedureQuery setParameter(String name,
                                  Date value,
                                  TemporalType temporalType)

Bind an instance of java.util.Date to a named parameter.

Specified by:

setParameter in interface Query

Parameters:

name - parameter name

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if the parameter name does not correspond to a parameter of the query or if the value argument is of incorrect type

setParameter

StoredProcedureQuery setParameter(int position,
                                  Object value)

Bind an argument value to a positional parameter.

Specified by:

setParameter in interface Query

Parameters:

position - position

value - parameter value

Returns:

the same query instance

Throws:

IllegalArgumentException - if position does not correspond to a positional parameter of the query or if the argument is of incorrect type

setParameter

StoredProcedureQuery setParameter(int position,
                                  Calendar value,
                                  TemporalType temporalType)

Bind an instance of java.util.Calendar to a positional parameter.

Specified by:

setParameter in interface Query

Parameters:

position - position

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if position does not correspond to a positional parameter of the query or if the value argument is of incorrect type

setParameter

StoredProcedureQuery setParameter(int position,
                                  Date value,
                                  TemporalType temporalType)

Bind an instance of java.util.Date to a positional parameter.

Specified by:

setParameter in interface Query

Parameters:

position - position

value - parameter value

temporalType - temporal type

Returns:

the same query instance

Throws:

IllegalArgumentException - if position does not correspond to a positional parameter of the query or if the value argument is of incorrect type

setFlushMode

StoredProcedureQuery setFlushMode(FlushModeType flushMode)

Set the flush mode type to be used for the query execution. The flush mode type applies to the query regardless of the flush mode type in use for the entity manager.

Specified by:

setFlushMode in interface Query

Parameters:

flushMode - flush mode

Returns:

the same query instance

registerStoredProcedureParameter

StoredProcedureQuery registerStoredProcedureParameter(int position,
                                                      Class type,
                                                      ParameterMode mode)

Register a positional parameter. All parameters must be registered.

Parameters:

position - parameter position

type - type of the parameter

mode - parameter mode

Returns:

the same query instance

registerStoredProcedureParameter

StoredProcedureQuery registerStoredProcedureParameter(String parameterName,
                                                      Class type,
                                                      ParameterMode mode)

Register a named parameter.

Parameters:

parameterName - name of the parameter as registered or specified in metadata

type - type of the parameter

mode - parameter mode

Returns:

the same query instance

getOutputParameterValue

Object getOutputParameterValue(int position)

Retrieve a value passed back from the procedure through an INOUT or OUT parameter. For portability, all results corresponding to result sets and update counts must be retrieved before the values of output parameters.

Parameters:

position - parameter position

Returns:

the result that is passed back through the parameter

Throws:

IllegalArgumentException - if the position does not correspond to a parameter of the query or is not an INOUT or OUT parameter

getOutputParameterValue

Object getOutputParameterValue(String parameterName)

Retrieve a value passed back from the procedure through an INOUT or OUT parameter. For portability, all results corresponding to result sets and update counts must be retrieved before the values of output parameters.

Parameters:

parameterName - name of the parameter as registered or specified in metadata

Returns:

the result that is passed back through the parameter

Throws:

IllegalArgumentException - if the parameter name does not correspond to a parameter of the query or is not an INOUT or OUT parameter

execute

boolean execute()

Return true if the first result corresponds to a result set, and false if it is an update count or if there are no results other than through INOUT and OUT parameters, if any.

Returns:

true if first result corresponds to result set

Throws:

QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back

executeUpdate

int executeUpdate()

Return the update count of -1 if there is no pending result or if the first result is not an update count. The provider will call execute on the query if needed.

Specified by:

executeUpdate in interface Query

Returns:

the update count or -1 if there is no pending result or if the next result is not an update count.

Throws:

TransactionRequiredException - if there is no transaction or the persistence context has not been joined to the transaction

QueryTimeoutException - if the statement execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back

getResultList

List getResultList()

Retrieve the list of results from the next result set. The provider will call execute on the query if needed. A REF_CURSOR result set, if any, will be retrieved in the order the REF_CURSOR parameter was registered with the query.

Specified by:

getResultList in interface Query

Returns:

a list of the results or null is the next item is not a result set

Throws:

QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back

getSingleResult

Object getSingleResult()

Retrieve a single result from the next result set. The provider will call execute on the query if needed. A REF_CURSOR result set, if any, will be retrieved in the order the REF_CURSOR parameter was registered with the query.

Specified by:

getSingleResult in interface Query

Returns:

the result or null if the next item is not a result set

Throws:

NoResultException - if there is no result in the next result set

NonUniqueResultException - if more than one result

QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back

hasMoreResults

boolean hasMoreResults()

Return true if the next result corresponds to a result set, and false if it is an update count or if there are no results other than through INOUT and OUT parameters, if any.

Returns:

true if next result corresponds to result set

Throws:

QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back

getUpdateCount

int getUpdateCount()

Return the update count or -1 if there is no pending result or if the next result is not an update count.

Returns:

update count or -1 if there is no pending result or if the next result is not an update count

Throws:

QueryTimeoutException - if the query execution exceeds the query timeout value set and only the statement is rolled back

PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled back