net.sf.jasperreports.engine.base

Class ElementsBlock

java.lang.Object

net.sf.jasperreports.engine.base.ElementsBlock

All Implemented Interfaces:

Serializable, ElementStore, VirtualizablePageElements, JRVirtualizable<VirtualElementsData>

public class ElementsBlock
extends Object
implements JRVirtualizable<VirtualElementsData>, ElementStore, Serializable

Author:

Lucian Chirita ([email protected])

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ElementsBlock(JRVirtualizationContext context, JRVirtualPrintPage page)
ElementsBlock(JRVirtualizationContext context, JRVirtualPrintPage page, String uid, int size)

Method Summary

Modifier and Type	Method and Description
boolean	add(int index, JRPrintElement element)
boolean	add(int index, JRPrintElement element, boolean force)
boolean	add(JRPrintElement element)
boolean	add(JRPrintElement element, boolean force)
void	afterExternalization() Called by the virtualizer after the object's data is externalized, but before the virtual data is removed.
void	afterInternalization() Called by the virtualizer after the object's data was made available to the object.
void	beforeExternalization() Called by the virtualizer before the object's data is externalized.
void	dispose()
void	ensureVirtualData() Ensure that the virtual data is set to the object.
JRPrintElement	get(int index)
JRVirtualizationContext	getContext() Returns the virtualization context this object belongs to.
JRVirtualPrintPage	getPage()
String	getUID() Used by the virtualizer to identify the data for this object.
VirtualElementsData	getVirtualData() Used by the virtualizer to get data.
boolean	isEmpty()
protected boolean	preAdd(JRPrintElement element, boolean force)
JRPrintElement	remove(int index)
void	removeVirtualData() Used by the virtualizer to remove the data from the object in memory so that it may be garbage collected.
JRPrintElement	set(int index, JRPrintElement element)
void	setVirtualData(VirtualElementsData virtualData) Used by the virtualizer to set data.
int	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

ElementsBlock

public ElementsBlock(JRVirtualizationContext context,
                     JRVirtualPrintPage page)

ElementsBlock

public ElementsBlock(JRVirtualizationContext context,
                     JRVirtualPrintPage page,
                     String uid,
                     int size)

Method Detail

size

public int size()

Specified by:

size in interface ElementStore

isEmpty

public boolean isEmpty()

get

public JRPrintElement get(int index)

Specified by:

get in interface ElementStore

preAdd

protected boolean preAdd(JRPrintElement element,
                         boolean force)

add

public boolean add(JRPrintElement element,
                   boolean force)

add

public boolean add(JRPrintElement element)

Specified by:

add in interface ElementStore

add

public boolean add(int index,
                   JRPrintElement element,
                   boolean force)

add

public boolean add(int index,
                   JRPrintElement element)

Specified by:

add in interface ElementStore

set

public JRPrintElement set(int index,
                          JRPrintElement element)

Specified by:

set in interface ElementStore

remove

public JRPrintElement remove(int index)

Specified by:

remove in interface ElementStore

getUID

public String getUID()

Description copied from interface: JRVirtualizable

Used by the virtualizer to identify the data for this object.

Specified by:

getUID in interface JRVirtualizable<VirtualElementsData>

ensureVirtualData

public void ensureVirtualData()

Description copied from interface: JRVirtualizable

Ensure that the virtual data is set to the object.

Specified by:

ensureVirtualData in interface JRVirtualizable<VirtualElementsData>

setVirtualData

public void setVirtualData(VirtualElementsData virtualData)

Description copied from interface: JRVirtualizable

Used by the virtualizer to set data.

Specified by:

setVirtualData in interface JRVirtualizable<VirtualElementsData>

getVirtualData

public VirtualElementsData getVirtualData()

Description copied from interface: JRVirtualizable

Used by the virtualizer to get data.

Specified by:

getVirtualData in interface JRVirtualizable<VirtualElementsData>

removeVirtualData

public void removeVirtualData()

Description copied from interface: JRVirtualizable

Used by the virtualizer to remove the data from the object in memory so that it may be garbage collected.

Specified by:

removeVirtualData in interface JRVirtualizable<VirtualElementsData>

beforeExternalization

public void beforeExternalization()

Description copied from interface: JRVirtualizable

Called by the virtualizer before the object's data is externalized.

Specified by:

beforeExternalization in interface JRVirtualizable<VirtualElementsData>

afterExternalization

public void afterExternalization()

Description copied from interface: JRVirtualizable

Called by the virtualizer after the object's data is externalized, but before the virtual data is removed.

Specified by:

afterExternalization in interface JRVirtualizable<VirtualElementsData>

afterInternalization

public void afterInternalization()

Description copied from interface: JRVirtualizable

Called by the virtualizer after the object's data was made available to the object.

Specified by:

afterInternalization in interface JRVirtualizable<VirtualElementsData>

getContext

public JRVirtualizationContext getContext()

Description copied from interface: JRVirtualizable

Returns the virtualization context this object belongs to.

Specified by:

getContext in interface JRVirtualizable<VirtualElementsData>

Returns:

the virtualization context this object belongs to

dispose

public void dispose()

Specified by:

dispose in interface ElementStore

getPage

public JRVirtualPrintPage getPage()

Specified by:

getPage in interface VirtualizablePageElements