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public interface LayoutController
The layout controller iterates over the report layout. It uses a flow controller to query the data.
Method Summary | |
---|---|
LayoutController |
advance(ReportTarget target)
Advances the processing position. |
java.lang.Object |
clone()
Creates a copy of this layout controller. |
LayoutController |
createPrecomputeInstance(FlowController fc)
Derives a copy of this controller that is suitable to perform a precomputation. |
FlowController |
getFlowController()
|
java.lang.Object |
getNode()
|
LayoutController |
getParent()
Retrieves the parent of this layout controller. |
void |
initialize(java.lang.Object node,
FlowController flowController,
LayoutController parent)
Initializes the layout controller. |
boolean |
isAdvanceable()
Checks, whether the layout controller would be advanceable. |
LayoutController |
join(FlowController flowController)
Joins with a delegated process flow. |
Method Detail |
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LayoutController getParent()
null
if there is no
parent.void initialize(java.lang.Object node, FlowController flowController, LayoutController parent) throws DataSourceException, ReportDataFactoryException, ReportProcessingException
node
- the currently processed object or layout node.flowController
- the current flow controller.parent
- the parent layout controller that was responsible for
instantiating this controller.
DataSourceException
- if there was a problem reading data from
the datasource.
ReportProcessingException
- if there was a general problem during
the report processing.
ReportDataFactoryException
- if a query failed.LayoutController advance(ReportTarget target) throws DataSourceException, ReportDataFactoryException, ReportProcessingException
target
- the report target that receives generated events.
DataSourceException
- if there was a problem reading data from
the datasource.
ReportProcessingException
- if there was a general problem during
the report processing.
ReportDataFactoryException
- if a query failed.boolean isAdvanceable()
LayoutController join(FlowController flowController) throws DataSourceException, ReportDataFactoryException, ReportProcessingException
flowController
- the flow controller of the parent.
DataSourceException
ReportDataFactoryException
ReportProcessingException
java.lang.Object clone()
LayoutController createPrecomputeInstance(FlowController fc)
fc
- a new flow controller for the precomputation.
FlowController getFlowController()
java.lang.Object getNode()
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