org.apache.cayenne.access.jdbc

Class ProcedureAction

java.lang.Object

org.apache.cayenne.access.jdbc.BaseSQLAction

org.apache.cayenne.access.jdbc.ProcedureAction

All Implemented Interfaces:

SQLAction

Direct Known Subclasses:

SQLServerProcedureAction

public class ProcedureAction
extends BaseSQLAction

A SQLAction that runs a stored procedure. Note that ProcedureAction has internal state and is not thread-safe.

Since:

1.2

Field Summary

Fields

Modifier and Type	Field and Description
protected int	processedResultSets Holds a number of ResultSets processed by the action.
protected ProcedureQuery	query

Fields inherited from class org.apache.cayenne.access.jdbc.BaseSQLAction

dataNode

Constructor Summary

Constructors

Constructor and Description
ProcedureAction(ProcedureQuery query, DataNode dataNode)

Method Summary

Modifier and Type	Method and Description
protected ProcedureTranslator	createTranslator(Connection connection) Returns the ProcedureTranslator to use for this ProcedureAction.
protected RowDescriptor	describeResultSet(ResultSet resultSet, int setIndex) Creates a RowDescriptor for result set.
protected Procedure	getProcedure() Returns stored procedure for an internal query.
protected void	initStatement(CallableStatement statement) Initializes statement with query parameters
void	performAction(Connection connection, OperationObserver observer) Executes a query using a strategy defined by the implementation.
protected void	readProcedureOutParameters(CallableStatement statement, OperationObserver delegate) Helper method that reads OUT parameters of a CallableStatement.

Methods inherited from class org.apache.cayenne.access.jdbc.BaseSQLAction

getInMemoryOffset, readResultSet

Methods inherited from class java.lang.Object

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

Field Detail

query

protected ProcedureQuery query

processedResultSets

protected int processedResultSets

Holds a number of ResultSets processed by the action. This value is reset to zero on every "performAction" call.

Constructor Detail

ProcedureAction

public ProcedureAction(ProcedureQuery query,
                       DataNode dataNode)

Since:

4.0

Method Detail

performAction

public void performAction(Connection connection,
                          OperationObserver observer)
                   throws SQLException,
                          Exception

Description copied from interface: SQLAction

Executes a query using a strategy defined by the implementation.

Throws:

SQLException

Exception

createTranslator

protected ProcedureTranslator createTranslator(Connection connection)

Returns the ProcedureTranslator to use for this ProcedureAction.

Parameters:

connection - JDBC connection

describeResultSet

protected RowDescriptor describeResultSet(ResultSet resultSet,
                                          int setIndex)
                                   throws SQLException

Creates a RowDescriptor for result set.

Parameters:

resultSet - JDBC ResultSet

setIndex - a zero-based index of the ResultSet in the query results.

Throws:

SQLException

getProcedure

protected Procedure getProcedure()

Returns stored procedure for an internal query.

readProcedureOutParameters

protected void readProcedureOutParameters(CallableStatement statement,
                                          OperationObserver delegate)
                                   throws SQLException,
                                          Exception

Helper method that reads OUT parameters of a CallableStatement.

Throws:

SQLException

Exception

initStatement

protected void initStatement(CallableStatement statement)
                      throws Exception

Initializes statement with query parameters

Throws:

Exception