All Known Implementing Classes:

DefaultFlowController
```
public interface FlowController
```
A flow-controller is an immutable object. Whenever an method, that may change the internal state of the controller, is invoked, a new instance of the controller is returned.

Author:

Thomas Morgner

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`FlowController`	`activateExpressions(ExpressionSlot[] expressions)`	Activates expressions that compute running values.
`FlowController`	`createPrecomputeInstance()`
`FlowController`	`deactivateExpressions()`
`ExpressionSlot[]`	`getActiveExpressions()`	Returns the current expression slots of all currently active expressions.
`java.lang.String`	`getExportDescriptor()`
`GlobalMasterRow`	`getMasterRow()`
`PrecomputedValueRegistry`	`getPrecomputedValueRegistry()`
`ReportContext`	`getReportContext()`
`ReportJob`	`getReportJob()`
`boolean`	`isAdvanceRequested()`
`FlowController`	`performOperation(FlowControlOperation operation)`
`FlowController`	`performQuery(java.lang.String query)`
`FlowController`	`performReturnFromQuery()`
`FlowController`	`performSubReportQuery(java.lang.String query, ParameterMapping[] inputParameters, ParameterMapping[] outputParameters)`

Method Detail

performOperation

FlowController performOperation(FlowControlOperation operation)
                         throws DataSourceException

Throws:: DataSourceException

getMasterRow
```
GlobalMasterRow getMasterRow()
```

getReportContext
```
ReportContext getReportContext()
```

getExportDescriptor
```
java.lang.String getExportDescriptor()
```

isAdvanceRequested
```
boolean isAdvanceRequested()
```

performQuery

FlowController performQuery(java.lang.String query)
                     throws ReportDataFactoryException,
                            DataSourceException

Throws:: ReportDataFactoryException; DataSourceException

performSubReportQuery

FlowController performSubReportQuery(java.lang.String query,
                                     ParameterMapping[] inputParameters,
                                     ParameterMapping[] outputParameters)
                              throws ReportDataFactoryException,
                                     DataSourceException

Throws:: ReportDataFactoryException; DataSourceException

activateExpressions
```
FlowController activateExpressions(ExpressionSlot[] expressions)
                            throws DataSourceException
```
Activates expressions that compute running values. This does not activate precomputed expressions.

Parameters:

expressions -

Returns:

Throws:

DataSourceException

getActiveExpressions
```
ExpressionSlot[] getActiveExpressions()
                               throws DataSourceException
```
Returns the current expression slots of all currently active expressions. (Maybe we should limit the access to the name and value of the expression instead?)

Returns:

Throws:

DataSourceException

deactivateExpressions

FlowController deactivateExpressions()
                              throws DataSourceException

Throws:: DataSourceException

getReportJob
```
ReportJob getReportJob()
```

performReturnFromQuery

FlowController performReturnFromQuery()
                               throws DataSourceException

Throws:: DataSourceException

createPrecomputeInstance

FlowController createPrecomputeInstance()
                                 throws DataSourceException

Throws:: DataSourceException

getPrecomputedValueRegistry

PrecomputedValueRegistry getPrecomputedValueRegistry()

Interface FlowController

Method Summary

Method Detail

performOperation

getMasterRow

getReportContext

getExportDescriptor

isAdvanceRequested

performQuery

performSubReportQuery

activateExpressions

getActiveExpressions

deactivateExpressions

getReportJob

performReturnFromQuery

createPrecomputeInstance

getPrecomputedValueRegistry