org.biomoby.client
Class DataServiceEdge

java.lang.Object
  org.biomoby.client.ServicesEdge
      org.biomoby.client.DataServiceEdge

public class DataServiceEdge
extends ServicesEdge

An instance of this class is a container for a pair of a data type and a Moby service definitions, and for an information how they can be connected. The parent class, a ServicesEdge, connects two services, this class connects a data type with one service:

 dataType --> targetService 

or

 sourceService --> dataType 

Therefore, only one service (either source, or target one) should be defined - otherwise an instance of this class actually represents two edges (which may not be expected by those who use this class):

 sourceService --> dataType --> targetService 

You can imagine that instances of this class represent starting or ending edges in a graph of services.

Version:

$Id: DataServiceEdge.java,v 1.2 2005/04/07 16:37:02 kawas Exp $

Author:

Martin Senger

See Also:

ServiceConnections

Field Summary

Fields inherited from class org.biomoby.client.ServicesEdge

BOTH_COLLECTIONS_CONNECTION, HEAD_COLLECTION_CONNECTION, NO_CONNECTION, NO_OUTPUT, NS_DIVIDER, SIMPLE_CONNECTION, TAIL_COLLECTION_CONNECTION

Constructor Summary

DataServiceEdge(MobyDataType sourceDataType, MobyService targetService, String connector)
Constructs an instance with data type as a source and a service as a target, and a connector.

DataServiceEdge(MobyService sourceService, MobyDataType targetDataType, String connector)
Constructs an instance with data type as a target and a service as a source, and a connector.

Method Summary

MobyDataType	getDataType() Retrieves the data type (regardless if it is a source or a target data type, there is always only one data type in this class).
MobyService	getService() Retrieves the service from this edge.
boolean	isEndingEdge() Indicate if this edge is a starting or ending edge of a graph.
String	toString()

Methods inherited from class org.biomoby.client.ServicesEdge

extractNamespace, getConnectionType, getConnector, getId, getSourceService, getTargetService, isWeakConnection, setConnectionType, setConnector, setWeakConnection

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DataServiceEdge

public DataServiceEdge(MobyDataType sourceDataType,
                       MobyService targetService,
                       String connector)

Constructs an instance with data type as a source and a service as a target, and a connector.

DataServiceEdge

public DataServiceEdge(MobyService sourceService,
                       MobyDataType targetDataType,
                       String connector)

Constructs an instance with data type as a target and a service as a source, and a connector.

Method Detail

getDataType

public MobyDataType getDataType()

Retrieves the data type (regardless if it is a source or a target data type, there is always only one data type in this class).

Returns:

the data type of this edge

getService

public MobyService getService()

Retrieves the service from this edge. Only source or target service should be present - and that one is returned.

Returns:

the service that is present; it returns null if both services (target and source) are null

isEndingEdge

public boolean isEndingEdge()

Indicate if this edge is a starting or ending edge of a graph.

Returns:

return true if this edge has a non-null target service

toString

public String toString()

Overrides:

toString in class ServicesEdge