7.3 SDPConnector interface (common API)

Explanation

This interface functions as the connector used for attaching to the SDP server. A connector is generated as an SDPConnector type object.

A connector is used to attach to a query group's input or output stream that has been defined in the SDP server.

The openStreamInput or openStreamOutput method of the SDPConnector interface is used to connect to a stream. However, a single connector cannot connect to a stream with the same name more than once.

You generate a connector using the following process, depending on the data connection method between the SDP server and a custom adaptor that you use.

Field

None.

Constructor

None.

Method

The following table shows the SDPConnector interface method list.

Return valueMethod nameFunction
voidclose()Closes the connector.
booleanisClosed()Checks whether the connector is closed.
StreamInputopenStreamInput(String group_name,String stream_name)Connects to the input stream that corresponds to the group name and stream name specified in the parameters.
An SDPConnector type object cannot connect to a stream with the same name more than once.
StreamOutputopenStreamOutput(String group_name,String stream_name)Connects to the output stream that corresponds to the group name and stream name specified in the parameters.
An SDPConnector type object cannot connect to a stream with the same name more than once.

Notes

None.

Organization of this section
close() method
isClosed() method
openStreamInput(String group_name,String stream_name) method
openStreamOutput(String group_name,String stream_name) method