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Java Source Code / Java Documentation » Report » jasperreports 2.0.1 » net.sf.jasperreports.engine.fill

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

net.sf.jasperreports.engine.fill .JRVirtualizationContext

JRVirtualizationContext
public class JRVirtualizationContext implements Serializable(Code)
	Context used to store data shared by virtualized objects resulted from a report fill process. author: Lucian Chirita (lucianc@users.sourceforge.net) version: $Id: JRVirtualizationContext.java 1254 2006-05-15 08:57:30Z lucianc $

Constructor Summary
public	JRVirtualizationContext() Constructs a context.

Method Summary
public void	cacheRenderer(JRPrintImage image) Caches an image renderer.
public void	cacheTemplate(JRTemplateElement template) Caches an element template.
public JRRenderable	getCachedRenderer(String id) Retrieves a cached image renderer based on an ID.
public JRTemplateElement	getCachedTemplate(String templateId) Retrieves a cached template.
public static JRVirtualizationContext	getRegistered(JasperPrint print) Returns the virtualization context registered for a print object.
public boolean	hasCachedRenderer(String id) Determines whether a cached image renderer for a specified ID exists.
public boolean	hasCachedTemplate(String id) Determines whether a cached JRTemplateElement template with a specified ID exists.
public boolean	isReadOnly() Determines whether this context has been marked as read-only.
public static void	register(JRVirtualizationContext context, JasperPrint print) Registers a virtualization context for JasperPrint JasperPrint object.
public void	setReadOnly(boolean readOnly) Sets the read-only flag for this context.

Constructor Detail

JRVirtualizationContext
public JRVirtualizationContext()(Code)
	Constructs a context.

Method Detail

cacheRenderer
public void cacheRenderer(JRPrintImage image)(Code)
	Caches an image renderer. Parameters: image - the image whose renderer should be cached

cacheTemplate
public void cacheTemplate(JRTemplateElement template)(Code)
	Caches an element template. Parameters: template - the template to cache

getCachedRenderer
public JRRenderable getCachedRenderer(String id)(Code)
	Retrieves a cached image renderer based on an ID. Parameters: id - the ID the cached image renderer for the ID

getCachedTemplate
public JRTemplateElement getCachedTemplate(String templateId)(Code)
	Retrieves a cached template. Parameters: templateId - the template ID the cached template having the given ID

getRegistered
public static JRVirtualizationContext getRegistered(JasperPrint print)(Code)
	Returns the virtualization context registered for a print object. When the engine fills a report using a virtualizer, it JRVirtualizationContext.register(JRVirtualizationContext,JasperPrint) registers the virtualization context with the generated JasperPrint JasperPrint object so that the caller would be able to retrieve the context based on the returned print object. Parameters: print - a print object the virtualization context registered for the print object, or `null` if no contexthas been registered

hasCachedRenderer
public boolean hasCachedRenderer(String id)(Code)
	Determines whether a cached image renderer for a specified ID exists. Parameters: id - the ID `true` iff the context contains a cached renderer with the specified ID

hasCachedTemplate
public boolean hasCachedTemplate(String id)(Code)
	Determines whether a cached JRTemplateElement template with a specified ID exists. Parameters: id - the template ID `true` iff the context contains a cached template with the specified ID

isReadOnly
public boolean isReadOnly()(Code)
	Determines whether this context has been marked as read-only. whether this context has been marked as read-only See Also: JRVirtualizationContext.setReadOnly(boolean)

register
public static void register(JRVirtualizationContext context, JasperPrint print)(Code)
	Registers a virtualization context for JasperPrint JasperPrint object. Parameters: context - the virtualization context Parameters: print - the print object

setReadOnly
public void setReadOnly(boolean readOnly)(Code)
	Sets the read-only flag for this context. When in read-only mode, all the virtualizable objects belonging to this context are assumed final by the virtualizer and any change in a virtualizable object's data would be discarded on virtualization. Parameters: readOnly - the read-only flag

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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