CachingReportDataFactory (flow-engine JavaDoc)

java.lang.Object
- org.jfree.report.data.CachingReportDataFactory

All Implemented Interfaces:

ReportDataFactory
```
public class CachingReportDataFactory
extends java.lang.Object
implements ReportDataFactory
```
Creation-Date: 19.11.2006, 13:35:45

Author:

Thomas Morgner

Constructor Summary

Constructors
Constructor Description

CachingReportDataFactory(ReportDataFactory backend)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes the report data factory and all report data instances that have been returned by this instance.
`ReportDataFactory`	`derive()`	Derives a freshly initialized report data factory, which is independend of the original data factory.
`void`	`open()`
`ReportData`	`queryData(java.lang.String query, DataSet parameters)`	Queries a datasource.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CachingReportDataFactory
```
public CachingReportDataFactory(ReportDataFactory backend)
```
- Method Detail
  - open
```
public void open()
```
    Specified by:
    
    open in interface ReportDataFactory
  - queryData
```
public ReportData queryData(java.lang.String query,
                            DataSet parameters)
                     throws ReportDataFactoryException
```
    Queries a datasource. The string 'query' defines the name of the query. The Parameterset given here may contain more data than actually needed.
    The dataset may change between two calls, do not assume anything!
    
    Specified by:
    
    queryData in interface ReportDataFactory
    
    Parameters:
    
    query -
    
    parameters -
    
    Returns:
    
    Throws:
    
    ReportDataFactoryException
  - close
```
public void close()
```
    Closes the report data factory and all report data instances that have been returned by this instance.
    
    Specified by:
    
    close in interface ReportDataFactory
  - derive
```
public ReportDataFactory derive()
```
    Derives a freshly initialized report data factory, which is independend of the original data factory. Opening or Closing one data factory must not affect the other factories.
    
    Specified by:
    
    derive in interface ReportDataFactory
    
    Returns: