edu.sc.seis.fissuresUtil.database
Interface LocalDCOperations

All Known Implementing Classes:

DBDataCenter

public interface LocalDCOperations

This class is Similar to DCOperations. This class differs from the DCOperations in the signature of the method request_seismograms which takes a callback Object. This interface makes use of a LocalDataCenterCallBack object for callback whereas DCOperations uses CORBA Object as a CallBackObject. LocalDCOperations.java Created: Wed Feb 19 14:40:22 2003

Method Summary

RequestFilter[]	available_data(RequestFilter[] a_filterseq)
void	cancel_request(java.lang.String a_request)
java.lang.String	queue_seismograms(RequestFilter[] a_filterseq)
java.lang.String	request_seismograms(RequestFilter[] a_filterseq, LocalDataCenterCallBack a_client, SeisDataChangeListener initiator, boolean long_lived, Time expiration_time) if long_lived is true then the request is "sticky" in that the client wants the data center to return not just the data that it has in its archive currently, but also any data that it receives up to the expiration_time.
java.lang.String	request_status(java.lang.String a_request)
LocalSeismogram[]	retrieve_queue(java.lang.String a_request)
LocalSeismogram[]	retrieve_seismograms(RequestFilter[] a_filterseq)

Method Detail

available_data

RequestFilter[] available_data(RequestFilter[] a_filterseq)

request_seismograms

java.lang.String request_seismograms(RequestFilter[] a_filterseq,
                                     LocalDataCenterCallBack a_client,
                                     SeisDataChangeListener initiator,
                                     boolean long_lived,
                                     Time expiration_time)
                                     throws FissuresException

if long_lived is true then the request is "sticky" in that the client wants the data center to return not just the data that it has in its archive currently, but also any data that it receives up to the expiration_time. For instance if a station sends its data by mailing tapes, then a researcher could issue a request for data that is expected to be delivered from a recent earthquake, even thought the data center does not yet have the data. Note that expiration_time is ignored if long_lived is false.

Throws:

FissuresException

retrieve_seismograms

LocalSeismogram[] retrieve_seismograms(RequestFilter[] a_filterseq)
                                       throws FissuresException

Throws:

FissuresException

queue_seismograms

java.lang.String queue_seismograms(RequestFilter[] a_filterseq)
                                   throws FissuresException

Throws:

FissuresException

retrieve_queue

LocalSeismogram[] retrieve_queue(java.lang.String a_request)
                                 throws FissuresException

Throws:

FissuresException

cancel_request

void cancel_request(java.lang.String a_request)
                    throws FissuresException

Throws:

FissuresException

request_status

java.lang.String request_status(java.lang.String a_request)
                                throws FissuresException

Throws:

FissuresException