javax.resource.cci
Interface Interaction


public interface Interaction

The javax.resource.cci.Interaction enables a component to execute EIS functions. An Interaction instance supports the following ways of interacting with an EIS instance:

An Interaction instance is created from a Connection and is required to maintain its association with the Connection instance. The close method releases all resources maintained by the resource adapter for the Interaction. The close of an Interaction instance should not close the associated Connection instance.

Since:
0.8
Version:
0.8
Author:
Rahul Sharma
See Also:
ResultSet

Method Summary
 void clearWarnings()
          Clears all the warning reported by this Interaction instance.
 void close()
          Closes the current Interaction and release all the resources held for this instance by the resource adapter.
 Record execute(InteractionSpec ispec, Record input)
          Executes an interaction represented by the InteractionSpec.
 boolean execute(InteractionSpec ispec, Record input, Record output)
          Executes an interaction represented by the InteractionSpec.
 Connection getConnection()
          Gets the Connection associated with the Interaction.
 ResourceWarning getWarnings()
          Gets the first ResourceWarning from the chain of warnings associated with this Interaction instance.
 

Method Detail

close

void close()
           throws ResourceException
Closes the current Interaction and release all the resources held for this instance by the resource adapter. The close of an Interaction instance does not close the associated Connection instance. It is recommended that Interaction instances be closed explicitly to free any held resources.

Throws:
ResourceException - Failed to close the Interaction instance. Invoking close on an already closed Interaction should also throw this exception.

getConnection

Connection getConnection()
Gets the Connection associated with the Interaction.

Returns:
Connection instance associated with the Interaction

execute

boolean execute(InteractionSpec ispec,
                Record input,
                Record output)
                throws ResourceException
Executes an interaction represented by the InteractionSpec. This form of invocation takes an input Record and updates the output Record.

Parameters:
ispec - InteractionSpec representing a target EIS data/function module
input - Input Record
output - Output Record
Returns:
true if execution of the EIS function has been successful and output Record has been updated; false otherwise
Throws:
ResourceException - Exception if execute operation fails. Examples of error cases are:
  • Resource adapter internal, EIS-specific or communication error
  • Invalid specification of an InteractionSpec, input or output record structure
  • Errors in use of input or output Record
  • Invalid connection associated with this Interaction
NotSupportedException - Operation not supported

execute

Record execute(InteractionSpec ispec,
               Record input)
               throws ResourceException
Executes an interaction represented by the InteractionSpec. This form of invocation takes an input Record and returns an output Record if the execution of the Interaction has been successfull.

Parameters:
ispec - InteractionSpec representing a target EIS data/function module
input - Input Record
Returns:
output Record if execution of the EIS function has been successful; null otherwise
Throws:
ResourceException - Exception if execute operation fails. Examples of error cases are:
  • Resource adapter internal, EIS-specific or communication error
  • Invalid specification of an InteractionSpec or input record structure
  • Errors in use of input Record or creation of an output Record
  • Invalid connection associated with this Interaction
NotSupportedException - Operation not supported

getWarnings

ResourceWarning getWarnings()
                            throws ResourceException
Gets the first ResourceWarning from the chain of warnings associated with this Interaction instance.

Returns:
ResourceWarning at top of the warning chain
Throws:
ResourceException - Failed to get ResourceWarnings associated with Interaction

clearWarnings

void clearWarnings()
                   throws ResourceException
Clears all the warning reported by this Interaction instance. After a call to this method, the method getWarnings will return null until a new warning is reported for this Interaction.

Throws:
ResourceException - Failed to clear ResourceWarnings associated with Interaction


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Generated on 10-February-2011 12:41


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