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Service Data Objects - MediatorAccessBean.
This interface defines
the wrapper to a SDO Mediator and it's Metadata. A Mediator has the
following responsibilities:
Method Summary | |
void |
applyChanges(DataGraphAccessBean datagraph)
Flush all changes made to the datagraph back to a data source |
void |
close()
Releases any resources, such as database cursors, being held by the DataList for the current page |
DataGraphAccessBean |
createEmptyGraph()
Return an empty datagraph based on my metadata |
DataGraphAccessBean |
fetchGraph()
Return a datagraph based on my metadata NOTE: This methods performs a fetch from the back-end data source. |
java.lang.Object |
getMetadata()
Returns the Metadata Object |
java.util.Map |
getParams()
Return the Map of paramaters use in the fetch query |
org.eclipse.emf.ecore.EClass |
getSchema()
Return the datagraph schema |
void |
setMetadata(java.lang.Object metadata)
Set the Metadata Object |
void |
setMetadataFileName(java.lang.String filename)
Set the path to the XML file containg the Metadata in XML format |
void |
setParams(java.util.Map params)
Set a Map of paramaters to be used in the fetch query |
Method Detail |
public void applyChanges(DataGraphAccessBean datagraph) throws com.ibm.websphere.wdo.mediator.exception.MediatorException, java.io.IOException
datagraph
- com.ibm.websphere.wdo.mediator.exception.MediatorException
- java.io.IOException
- public void close() throws com.ibm.websphere.wdo.mediator.exception.MediatorException
com.ibm.websphere.wdo.mediator.exception.MediatorException
- public DataGraphAccessBean createEmptyGraph() throws com.ibm.websphere.wdo.mediator.exception.MediatorException, java.io.IOException
com.ibm.websphere.wdo.mediator.exception.MediatorException
- java.io.IOException
- public DataGraphAccessBean fetchGraph() throws com.ibm.websphere.wdo.mediator.exception.MediatorException, java.io.IOException
com.ibm.websphere.wdo.mediator.exception.MediatorException
- java.io.IOException
- public java.lang.Object getMetadata() throws java.io.IOException, com.ibm.websphere.wdo.mediator.exception.MediatorException
java.io.IOException
- com.ibm.websphere.wdo.mediator.exception.MediatorException
- public java.util.Map getParams()
public org.eclipse.emf.ecore.EClass getSchema() throws com.ibm.websphere.wdo.mediator.exception.MediatorException, java.io.IOException
public void setMetadataFileName(java.lang.String filename) throws com.ibm.websphere.wdo.mediator.exception.MediatorException
filename
- com.ibm.websphere.wdo.mediator.exception.MediatorException
- public void setParams(java.util.Map params)
params
- public void setMetadata(java.lang.Object metadata)
metadata
-
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