Package org.pentaho.reporting.engine.classic.core.filter

Class ComponentDrawableFilter

java.lang.Object

org.pentaho.reporting.engine.classic.core.filter.ComponentDrawableFilter

All Implemented Interfaces:

Serializable, Cloneable, DataFilter, DataSource, DataTarget

public class ComponentDrawableFilter
extends Object
implements DataFilter

A filter that wraps AWT- and Swing-components into a Drawable implementation.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ComponentDrawableFilter()	Default constructor.

Method Summary

Modifier and Type	Method	Description
ComponentDrawableFilter	clone()	Creates a clone of this filter.
DataSource	getDataSource()	Returns the assigned DataSource for this Target.
Object	getValue(ExpressionRuntime runtime, ReportElement element)	Returns the ComponentDrawable for the AWT-Component or null.
protected static boolean	isHeadless()	A helper method that queries the configuration (and therefore also the system properties) for whether the system is in headless mode.
void	setDataSource(DataSource ds)	Assigns a DataSource for this Target.

Methods inherited from class java.lang.Object

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

Constructor Detail

ComponentDrawableFilter

public ComponentDrawableFilter()

Default constructor.

Method Detail

getValue

public Object getValue(ExpressionRuntime runtime,
                       ReportElement element)

Returns the ComponentDrawable for the AWT-Component or null.

Specified by:

getValue in interface DataSource

Parameters:

runtime - the expression runtime that is used to evaluate formulas and expressions when computing the value of this filter.

element -

Returns:

the value.

isHeadless

protected static boolean isHeadless()

A helper method that queries the configuration (and therefore also the system properties) for whether the system is in headless mode.

Returns:

true, if the system is headless, false otherwise.

clone

public ComponentDrawableFilter clone()
                              throws CloneNotSupportedException

Creates a clone of this filter.

Specified by:

clone in interface DataSource

Specified by:

clone in interface DataTarget

Overrides:

clone in class Object

Returns:

the clone.

Throws:

CloneNotSupportedException - if an error occured.

getDataSource

public DataSource getDataSource()

Returns the assigned DataSource for this Target.

Specified by:

getDataSource in interface DataTarget

Returns:

The datasource.

setDataSource

public void setDataSource(DataSource ds)

Assigns a DataSource for this Target.

Specified by:

setDataSource in interface DataTarget

Parameters:

ds - The data source.