All Known Implementing Classes:

GenericExpressionRuntime, InlineDataRowRuntime, LayoutExpressionRuntime, ParameterExpressionRuntime, WrapperExpressionRuntime
```
public interface ExpressionRuntime
```
The expression runtime encapsulates all properties of the current report processing run that might be needed to successfully evaluate an expression. The runtime grants access to the DataRow, the TableModel of the current report and the ProcessingContext.

Author:

Thomas Morgner

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`org.pentaho.reporting.libraries.base.config.Configuration`	`getConfiguration()`	Returns the report configuration that was used to initiate this processing run.
`int`	`getCurrentDataItem()`	Returns the row number of the raw datasource that is currently accessed.
`int`	`getCurrentGroup()`
`int`	`getCurrentRow()`	Returns the number of the row in padded datasource that is currently being processed.
`TableModel`	`getData()`	Grants access to the tablemodel was granted using report properties, now direct.
`DataFactory`	`getDataFactory()`
`DataRow`	`getDataRow()`	Returns the current data-row.
`DataSchema`	`getDataSchema()`
`String`	`getExportDescriptor()`	Returns the current export descriptor as returned by the OutputProcessorMetaData object.
`int`	`getGroupStartRow(int groupIndex)`
`int`	`getGroupStartRow(String groupName)`
`ProcessingContext`	`getProcessingContext()`	Returns the current processing context.
`ResourceBundleFactory`	`getResourceBundleFactory()`	Returns the resource-bundle factory of current processing context.
`boolean`	`isCrosstabActive()`	A flag indicating that a crosstab is actively processed.
`boolean`	`isStructuralComplexReport()`	A flag indicating that this report contains crosstabs.

- Method Detail
  - getDataRow
```
DataRow getDataRow()
```
    Returns the current data-row. The datarow can be used to access the computed values of all expressions and functions and the current row in the tablemodel.
    
    Returns:
    
    the data-row.
  - getDataSchema
```
DataSchema getDataSchema()
```
  - getDataFactory
```
DataFactory getDataFactory()
```
  - getConfiguration
```
org.pentaho.reporting.libraries.base.config.Configuration getConfiguration()
```
    Returns the report configuration that was used to initiate this processing run.
    
    Returns:
    
    the report configuration.
  - getResourceBundleFactory
```
ResourceBundleFactory getResourceBundleFactory()
```
    Returns the resource-bundle factory of current processing context.
    
    Returns:
    
    the current resource-bundle factory.
  - getData
```
TableModel getData()
```
    Grants access to the tablemodel was granted using report properties, now direct.
    
    Returns:
    
    the current tablemodel used in the report.
  - getCurrentRow
```
int getCurrentRow()
```
    Returns the number of the row in padded datasource that is currently being processed. This is equal to the current report state's currentRow number.
    
    Returns:
    
    the current row number.
  - getCurrentDataItem
```
int getCurrentDataItem()
```
    Returns the row number of the raw datasource that is currently accessed.
    
    Returns:
    
    the raw access row number.
  - getCurrentGroup
```
int getCurrentGroup()
```
  - getGroupStartRow
```
int getGroupStartRow(String groupName)
```
  - getGroupStartRow
```
int getGroupStartRow(int groupIndex)
```
  - getExportDescriptor
```
String getExportDescriptor()
```
    Returns the current export descriptor as returned by the OutputProcessorMetaData object. The output descriptor is a simple string collections consisting of the following components: exportclass/type/subtype
    For example, the PDF export would be: pageable/pdf and the StreamHTML export would return table/html/stream
    
    Returns:
    
    the export descriptor.
  - getProcessingContext
```
ProcessingContext getProcessingContext()
```
    Returns the current processing context.
    
    Returns:
    
    the processing context.
  - isStructuralComplexReport
```
boolean isStructuralComplexReport()
```
    A flag indicating that this report contains crosstabs.
    
    Returns:
  - isCrosstabActive
```
boolean isCrosstabActive()
```
    A flag indicating that a crosstab is actively processed.
    
    Returns:

Interface ExpressionRuntime

Method Summary

Method Detail

getDataRow

getDataSchema

getDataFactory

getConfiguration

getResourceBundleFactory

getData

getCurrentRow

getCurrentDataItem

getCurrentGroup

getGroupStartRow

getGroupStartRow

getExportDescriptor

getProcessingContext

isStructuralComplexReport

isCrosstabActive