PageWindowManager (Wicket Core 9.0.0-SNAPSHOT API)

java.lang.Object
- org.apache.wicket.pageStore.disk.PageWindowManager

All Implemented Interfaces:

java.io.Serializable
```
public class PageWindowManager
extends java.lang.Object
implements java.io.Serializable
```
Manages positions and size of chunks of data in a file.
The data is stored inside the file in a cyclic way. Newer pages are placed after older ones, until the maximum file size is reached. After that, the next page is stored in the beginning of the file.

Author:

Matej Knopp

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class PageWindowManager.FileWindow
Contains information about a page inside the file.

Constructor Summary

Constructors
Constructor Description

PageWindowManager(long maxSize)
Creates a new PageWindowManager.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`PageWindowManager.FileWindow`	`createPageWindow(int pageId, java.lang.String pageType, int size)`	Creates and returns a new page window for given page.
`java.util.List<PageWindowManager.FileWindow>`	`getFileWindows()`	Returns last n saved page windows.
`PageWindowManager.FileWindow`	`getPageWindow(int pageId)`	Returns the page window for given page or null if no window was found.
`int`	`getTotalSize()`	Returns the size of all saved pages
`void`	`removePage(int pageId)`	Removes the page window for given page.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - PageWindowManager
```
public PageWindowManager(long maxSize)
```
    Creates a new PageWindowManager.
    
    Parameters:
    
    maxSize - maximum page size. After this size is exceeded, the pages will be saved starting at the beginning of file
- Method Detail
  - createPageWindow
```
public PageWindowManager.FileWindow createPageWindow(int pageId,
                                                     java.lang.String pageType,
                                                     int size)
```
    Creates and returns a new page window for given page.
    
    Parameters:
    
    pageId -
    
    type -
    
    size -
    
    Returns:
    
    page window
  - getPageWindow
```
public PageWindowManager.FileWindow getPageWindow(int pageId)
```
    Returns the page window for given page or null if no window was found.
    
    Parameters:
    
    pageId -
    
    Returns:
    
    page window or null
  - removePage
```
public void removePage(int pageId)
```
    Removes the page window for given page.
    
    Parameters:
    
    pageId -
  - getFileWindows
```
public java.util.List<PageWindowManager.FileWindow> getFileWindows()
```
    Returns last n saved page windows.
    
    Returns:
    
    list of page windows
  - getTotalSize
```
public int getTotalSize()
```
    Returns the size of all saved pages
    
    Returns:
    
    total size