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java.lang.Objectcom.jrefinery.report.targets.pageable.ReportStateList
The ReportState list stores a report states for the beginning of every page. The list is filled on repagination and read when a report or a page of the report is printed.
Important: This list stores page start report states, not arbitary report states. These ReportStates are special: they can be reproduced by calling processPage on the report.
Internally this list is organized as a list of WeakReferenceLists, where every WeakReferenceList stores a certain number of page states. The first 20 states are stored in an ordinary list with strong-references, so these states never get GarbageCollected (and so they must never be restored by reprocessing them). The next 100 states are stored in 4-element ReferenceLists, so if a reference is lost, only 4 states have to be reprocessed. All other states are stored in 10-element lists.
Constructor Summary | |
ReportStateList(PageableReportProcessor proc)
Creates a new reportstatelist. |
Method Summary | |
void |
add(ReportState state)
Adds this report state to the end of the list. |
void |
clear()
Removes all elements in the list. |
ReportState |
get(int index)
Retrieves the element on position index in this list. |
int |
size()
Returns the number of elements in this list. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public ReportStateList(PageableReportProcessor proc) throws OutputTargetException
proc
- the reportprocessor used to restore lost states (null not permitted).
OutputTargetException
- if there is a problem with the output target.
java.lang.NullPointerException
- if the report processor is null
.Method Detail |
public int size()
public void add(ReportState state)
state
- the report state.public void clear()
public ReportState get(int index)
index
in this list.
index
- the index.
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