org.syrup.sql
Class ExecutionFunctions

java.lang.Object
  org.syrup.sql.Functions
      org.syrup.sql.ExecutionFunctions

public class ExecutionFunctions

extends Functions

Utility functions to execute Syrup PTasks using JDBC.

Author:

Robbert van Dalen

Constructor Summary

ExecutionFunctions(SQLImpl sqlImpl)
Constructor for the ExecutionFunctions object

Method Summary

protected PTask	commit_result(Result r, SyrupConnection con) Commits the Result of an execution by executing SQL statements over a Connection.
protected Context	start(PTask pt, java.lang.String w, SyrupConnection con) Starts the execution of a PTask by executing SQL statements over a Connection.

Methods inherited from class org.syrup.sql.Functions

sqlImpl

Methods inherited from class java.lang.Object

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

Constructor Detail

ExecutionFunctions

public ExecutionFunctions(SQLImpl sqlImpl)

Constructor for the ExecutionFunctions object

Parameters:

sqlImpl - The SQLImpl that is held by the Function instance.

Method Detail

start

protected Context start(PTask pt,
                        java.lang.String w,
                        SyrupConnection con)
                 throws java.lang.Exception

Starts the execution of a PTask by executing SQL statements over a Connection. Returns the associated Context from the WorkSpace.

Parameters:

pt - The Ptask to be executed.

w - The Worker address (URL) that requested execution.

con - The SyrupConnection over which SQL statements are executed.

Returns:

The associated Context.

Throws:

java.lang.Exception

commit_result

protected PTask commit_result(Result r,
                              SyrupConnection con)
                       throws java.lang.Exception

Commits the Result of an execution by executing SQL statements over a Connection. Returns the executed PTask that produced the Result.

Parameters:

r - The Result to be commited.

con - The SyrupConnection over which SQL statements are executed.

Returns:

The executed PTask that produced the Result.

Throws:

java.lang.Exception