Package org.pentaho.reporting.engine.classic.extensions.datasources.scriptable

Class ScriptableDataFactory

java.lang.Object

org.pentaho.reporting.engine.classic.core.AbstractDataFactory

org.pentaho.reporting.engine.classic.extensions.datasources.scriptable.ScriptableDataFactory

All Implemented Interfaces:

Serializable, Cloneable, org.pentaho.reporting.engine.classic.core.DataFactory, org.pentaho.reporting.engine.classic.core.DataFactoryDesignTimeSupport, org.pentaho.reporting.engine.classic.core.DataFactoryMetaProvider

public class ScriptableDataFactory
extends org.pentaho.reporting.engine.classic.core.AbstractDataFactory

A datafactory that uses a bean-scripting framework script to produce a tablemodel.

Author:

Thomas Morgner

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.pentaho.reporting.engine.classic.core.AbstractDataFactory

org.pentaho.reporting.engine.classic.core.AbstractDataFactory.DataRowWrapper

Field Summary

Fields inherited from interface org.pentaho.reporting.engine.classic.core.DataFactory

QUERY_LIMIT, QUERY_SORT, QUERY_TIMEOUT

Fields inherited from interface org.pentaho.reporting.engine.classic.core.DataFactoryDesignTimeSupport

DESIGN_TIME

Constructor Summary

Constructors

Constructor	Description
ScriptableDataFactory()

Method Summary

Modifier and Type	Method	Description
void	cancelRunningQuery()
ScriptableDataFactory	clone()
void	close()	Closes the data factory and frees all resources held by this instance.
protected org.apache.bsf.BSFManager	createInterpreter()	Creates a new interpreter instance.
org.pentaho.reporting.engine.classic.core.DataFactory	derive()	Returns a copy of the data factory that is not affected by its ancestor and holds no connection to the ancestor anymore.
String	getLanguage()
String	getQuery(String name)
String[]	getQueryNames()
String	getScript()
String	getShutdownScript()
protected void	initializeInterpreter(org.apache.bsf.BSFManager interpreter)	Initializes the Bean-Scripting Framework manager.
boolean	isQueryExecutable(String query, org.pentaho.reporting.engine.classic.core.DataRow parameters)	Checks whether the query would be executable by this datafactory.
TableModel	queryData(String query, org.pentaho.reporting.engine.classic.core.DataRow parameters)	Queries a datasource.
void	setLanguage(String language)
void	setQuery(String name, String value)
void	setScript(String script)
void	setShutdownScript(String shutdownScript)

Methods inherited from class org.pentaho.reporting.engine.classic.core.AbstractDataFactory

calculateQueryLimit, calculateQueryTimeOut, getConfiguration, getContextKey, getDataFactoryContext, getDisplayConnectionName, getLocale, getMetaData, getQueryHash, getReferencedFields, getResourceBundleFactory, getResourceManager, initialize, queryDesignTimeStructure

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ScriptableDataFactory

public ScriptableDataFactory()

Method Detail

getLanguage

public String getLanguage()

setLanguage

public void setLanguage(String language)

setQuery

public void setQuery(String name,
                     String value)

getScript

public String getScript()

setScript

public void setScript(String script)

getShutdownScript

public String getShutdownScript()

setShutdownScript

public void setShutdownScript(String shutdownScript)

getQuery

public String getQuery(String name)

getQueryNames

public String[] getQueryNames()

createInterpreter

protected org.apache.bsf.BSFManager createInterpreter()
                                               throws org.apache.bsf.BSFException

Creates a new interpreter instance.

Returns:

the interpreter or null, if there was an error.

Throws:

org.apache.bsf.BSFException

initializeInterpreter

protected void initializeInterpreter(org.apache.bsf.BSFManager interpreter)
                              throws org.apache.bsf.BSFException

Initializes the Bean-Scripting Framework manager.

Parameters:

interpreter - the BSF-Manager that should be initialized.

Throws:

org.apache.bsf.BSFException - if an error occurred.

queryData

public TableModel queryData(String query,
                            org.pentaho.reporting.engine.classic.core.DataRow parameters)
                     throws org.pentaho.reporting.engine.classic.core.ReportDataFactoryException

Queries a datasource. The string 'query' defines the name of the query. The Parameterset given here may contain more data than actually needed for the query.

The parameter-dataset may change between two calls, do not assume anything, and do not hold references to the parameter-dataset or the position of the columns in the dataset.

Parameters:

query - the query string

parameters - the parameters for the query

Returns:

the result of the query as table model.

Throws:

org.pentaho.reporting.engine.classic.core.ReportDataFactoryException - if an error occurred while performing the query.

clone

public ScriptableDataFactory clone()

Specified by:

clone in interface org.pentaho.reporting.engine.classic.core.DataFactory

Overrides:

clone in class org.pentaho.reporting.engine.classic.core.AbstractDataFactory

derive

public org.pentaho.reporting.engine.classic.core.DataFactory derive()

Returns a copy of the data factory that is not affected by its ancestor and holds no connection to the ancestor anymore. A data-factory will be derived at the beginning of the report processing.

Specified by:

derive in interface org.pentaho.reporting.engine.classic.core.DataFactory

Overrides:

derive in class org.pentaho.reporting.engine.classic.core.AbstractDataFactory

Returns:

a copy of the data factory.

close

public void close()

Closes the data factory and frees all resources held by this instance.

isQueryExecutable

public boolean isQueryExecutable(String query,
                                 org.pentaho.reporting.engine.classic.core.DataRow parameters)

Checks whether the query would be executable by this datafactory. This performs a rough check, not a full query.

Parameters:

query -

parameters -

Returns:

cancelRunningQuery

public void cancelRunningQuery()

Specified by:

cancelRunningQuery in interface org.pentaho.reporting.engine.classic.core.DataFactory

Overrides:

cancelRunningQuery in class org.pentaho.reporting.engine.classic.core.AbstractDataFactory