SimplePager (GWT Javadoc)

java.lang.Object
- com.google.gwt.user.client.ui.UIObject
- - com.google.gwt.user.client.ui.Widget
  - - com.google.gwt.user.client.ui.Composite
    - - com.google.gwt.user.cellview.client.AbstractPager
      - com.google.gwt.user.cellview.client.SimplePager

All Implemented Interfaces:: HasAttachHandlers, HasHandlers, EventListener, HasVisibility, IsRenderable, IsWidget

public class SimplePager
extends AbstractPager

A pager for controlling a HasRows that only supports simple page navigation.

Example

public class SimplePagerExample implements EntryPoint {

  public void onModuleLoad() {
    // Create a CellList.
    CellList<String> cellList = new CellList<String>(new TextCell());

    // Add a cellList to a data provider.
    ListDataProvider<String> dataProvider = new ListDataProvider<String>();
    List<String> data = dataProvider.getList();
    for (int i = 0; i < 200; i++) {
      data.add("Item " + i);
    }
    dataProvider.addDataDisplay(cellList);

    // Create a SimplePager.
    SimplePager pager = new SimplePager();

    // Set the cellList as the display.
    pager.setDisplay(cellList);

    // Add the pager and list to the page.
    VerticalPanel vPanel = new VerticalPanel();
    vPanel.add(pager);
    vPanel.add(cellList);
    RootPanel.get().add(vPanel);
  }
}

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static interface`	`SimplePager.ImageButtonsConstants` Constant for labeling the simple pager navigational `ImageButton`s
`static interface`	`SimplePager.Resources` A ClientBundle that provides images for this widget.
`static interface`	`SimplePager.Style` Styles used by this widget.
`static class`	`SimplePager.TextLocation` The location of the text relative to the paging buttons.

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject
UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled

Field Summary
- Fields inherited from class com.google.gwt.user.cellview.client.AbstractPager
  rangeChangeHandler, rowCountChangeHandler
- Fields inherited from class com.google.gwt.user.client.ui.UIObject
  DEBUG_ID_PREFIX

Constructor Summary

Constructors
Constructor and Description
`SimplePager()` Construct a `SimplePager` with the default text location.
`SimplePager(SimplePager.TextLocation location)` Construct a `SimplePager` with the specified text location.
`SimplePager(SimplePager.TextLocation location, boolean showFastForwardButton, boolean showLastPageButton)` Construct a `SimplePager` with the default resources, fast forward rows and default image button names.
`SimplePager(SimplePager.TextLocation location, boolean showFastForwardButton, int fastForwardRows, boolean showLastPageButton)` Construct a `SimplePager` with the default resources and default image button names.
`SimplePager(SimplePager.TextLocation location, SimplePager.Resources resources, boolean showFastForwardButton, int fastForwardRows, boolean showLastPageButton)` Construct a `SimplePager` with the specified resources and default image button names.
`SimplePager(SimplePager.TextLocation location, SimplePager.Resources resources, boolean showFastForwardButton, int fastForwardRows, boolean showLastPageButton, boolean showFirstPageButton, SimplePager.ImageButtonsConstants imageButtonConstants)` Construct a `SimplePager` with the specified resources.
`SimplePager(SimplePager.TextLocation location, SimplePager.Resources resources, boolean showFastForwardButton, int fastForwardRows, boolean showLastPageButton, SimplePager.ImageButtonsConstants imageButtonConstants)` Construct a `SimplePager` with the specified resources.

Method Summary

Methods
Modifier and Type	Method and Description
`protected java.lang.String`	`createText()` Get the text to display in the pager that reflects the state of the pager.
`void`	`firstPage()` Go to the first page.
`int`	`getPage()` Get the current page index.
`int`	`getPageCount()` Get the number of pages based on the data size.
`boolean`	`hasNextPage()` Returns true if there is enough data such that a call to `AbstractPager.nextPage()` will succeed in moving the starting point of the table forward.
`boolean`	`hasNextPages(int pages)` Returns true if there is enough data to display a given number of additional pages.
`boolean`	`hasPage(int index)` Returns true if there is enough data such that the specified page is within range.
`boolean`	`hasPreviousPage()` Returns true if there is enough data such that a call to `AbstractPager.previousPage()` will succeed in moving the starting point of the table backward.
`boolean`	`hasPreviousPages(int pages)` Returns true if there is enough data to display a given number of previous pages.
`(package private) boolean`	`isNextButtonDisabled()` Check if the next button is disabled.
`(package private) boolean`	`isPreviousButtonDisabled()` Check if the previous button is disabled.
`void`	`lastPage()` Go to the last page.
`void`	`lastPageStart()` Set the page start to the last index that will still show a full page.
`void`	`nextPage()` Advance the starting row by 'pageSize' rows.
`protected void`	`onRangeOrRowCountChanged()` Called when the range or row count changes.
`void`	`previousPage()` Move the starting row back by 'pageSize' rows.
`void`	`setDisplay(HasRows display)` Set the `HasRows` to be paged.
`void`	`setPage(int index)` Go to a specific page.
`void`	`setPageSize(int pageSize)` Set the page size of the display.
`void`	`setPageStart(int index)` Set the page start index.
`void`	`startLoading()` Let the page know that the table is loading.

Methods inherited from class com.google.gwt.user.cellview.client.AbstractPager
getDisplay, getPageSize, getPageStart, isRangeLimited, setRangeLimited

Methods inherited from class com.google.gwt.user.client.ui.Composite
claimElement, getWidget, initializeClaimedElement, initWidget, isAttached, onAttach, onBrowserEvent, onDetach, render, render, resolvePotentialElement, setWidget

Methods inherited from class com.google.gwt.user.client.ui.Widget
addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getHandlerCount, getLayoutData, getParent, isOrWasAttached, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject
addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString

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

- Constructor Detail
  - SimplePager
```
public SimplePager()
```
    Construct a SimplePager with the default text location.
  - SimplePager
```
@UiConstructor
public SimplePager(SimplePager.TextLocation location)
```
    Construct a SimplePager with the specified text location.
    
    Parameters:
    location - the location of the text relative to the buttons
  - SimplePager
```
public SimplePager(SimplePager.TextLocation location,
           boolean showFastForwardButton,
           boolean showLastPageButton)
```
    Construct a SimplePager with the default resources, fast forward rows and default image button names.
    
    Parameters:
    location - the location of the text relative to the buttons
    showFastForwardButton - if true, show a fast-forward button that advances by a larger increment than a single page
    showLastPageButton - if true, show a button to go to the last page
  - SimplePager
```
public SimplePager(SimplePager.TextLocation location,
           boolean showFastForwardButton,
           int fastForwardRows,
           boolean showLastPageButton)
```
    Construct a SimplePager with the default resources and default image button names.
    
    Parameters:
    location - the location of the text relative to the buttons
    showFastForwardButton - if true, show a fast-forward button that advances by a larger increment than a single page
    fastForwardRows - the number of rows to jump when fast forwarding
    showLastPageButton - if true, show a button to go to the last page
  - SimplePager
```
public SimplePager(SimplePager.TextLocation location,
           SimplePager.Resources resources,
           boolean showFastForwardButton,
           int fastForwardRows,
           boolean showLastPageButton,
           SimplePager.ImageButtonsConstants imageButtonConstants)
```
    Construct a SimplePager with the specified resources.
    
    Parameters:
    location - the location of the text relative to the buttons
    resources - the SimplePager.Resources to use
    showFastForwardButton - if true, show a fast-forward button that advances by a larger increment than a single page
    fastForwardRows - the number of rows to jump when fast forwarding
    showLastPageButton - if true, show a button to go to the last page
    imageButtonConstants - Constants that contain the image button names
  - SimplePager
```
public SimplePager(SimplePager.TextLocation location,
           SimplePager.Resources resources,
           boolean showFastForwardButton,
           int fastForwardRows,
           boolean showLastPageButton,
           boolean showFirstPageButton,
           SimplePager.ImageButtonsConstants imageButtonConstants)
```
    Construct a SimplePager with the specified resources.
    
    Parameters:
    location - the location of the text relative to the buttons
    resources - the SimplePager.Resources to use
    showFastForwardButton - if true, show a fast-forward button that advances by a larger increment than a single page
    fastForwardRows - the number of rows to jump when fast forwarding
    showLastPageButton - if true, show a button to go to the last page
    showFirstPageButton - if true, show a button to go to the first page
    imageButtonConstants - Constants that contain the image button names
  - SimplePager
```
public SimplePager(SimplePager.TextLocation location,
           SimplePager.Resources resources,
           boolean showFastForwardButton,
           int fastForwardRows,
           boolean showLastPageButton)
```
    Construct a SimplePager with the specified resources and default image button names.
    
    Parameters:
    location - the location of the text relative to the buttons
    resources - the SimplePager.Resources to use
    showFastForwardButton - if true, show a fast-forward button that advances by a larger increment than a single page
    fastForwardRows - the number of rows to jump when fast forwarding
    showLastPageButton - if true, show a button to go to the last page
- Method Detail
  - firstPage
```
public void firstPage()
```
    Description copied from class: AbstractPager
    
    Go to the first page.
    
    Overrides:
    
    firstPage in class AbstractPager
  - getPage
```
public int getPage()
```
    Description copied from class: AbstractPager
    
    Get the current page index.
    
    Since the page start index can be set to any value, its possible to be between pages. In this case, the return value is the number of times AbstractPager.previousPage() can be called.
    
    Overrides:
    
    getPage in class AbstractPager
    
    Returns:
    the page index, or -1 if the display is not set
    See Also:
    AbstractPager.setPage(int)
  - getPageCount
```
public int getPageCount()
```
    Description copied from class: AbstractPager
    
    Get the number of pages based on the data size.
    
    Overrides:
    
    getPageCount in class AbstractPager
    
    Returns:
    the page count, or -1 if the display is not set
  - hasNextPage
```
public boolean hasNextPage()
```
    Description copied from class: AbstractPager
    
    Returns true if there is enough data such that a call to AbstractPager.nextPage() will succeed in moving the starting point of the table forward.
    
    Overrides:
    
    hasNextPage in class AbstractPager
    
    Returns:
    true if there is a next page
  - hasNextPages
```
public boolean hasNextPages(int pages)
```
    Description copied from class: AbstractPager
    
    Returns true if there is enough data to display a given number of additional pages.
    
    Overrides:
    
    hasNextPages in class AbstractPager
    
    Parameters:
    pages - the number of pages to query
    
    Returns:
    true if there are pages next pages
  - hasPage
```
public boolean hasPage(int index)
```
    Description copied from class: AbstractPager
    
    Returns true if there is enough data such that the specified page is within range.
    
    Overrides:
    
    hasPage in class AbstractPager
    
    Parameters:
    index - the page index
    
    Returns:
    true if the specified page is in range
  - hasPreviousPage
```
public boolean hasPreviousPage()
```
    Description copied from class: AbstractPager
    
    Returns true if there is enough data such that a call to AbstractPager.previousPage() will succeed in moving the starting point of the table backward.
    
    Overrides:
    
    hasPreviousPage in class AbstractPager
    
    Returns:
    true if there is a previous page
  - hasPreviousPages
```
public boolean hasPreviousPages(int pages)
```
    Description copied from class: AbstractPager
    
    Returns true if there is enough data to display a given number of previous pages.
    
    Overrides:
    
    hasPreviousPages in class AbstractPager
    
    Parameters:
    pages - the number of previous pages to query
    
    Returns:
    true if there are pages previous pages
  - lastPage
```
public void lastPage()
```
    Description copied from class: AbstractPager
    
    Go to the last page.
    
    Overrides:
    
    lastPage in class AbstractPager
  - lastPageStart
```
public void lastPageStart()
```
    Description copied from class: AbstractPager
    
    Set the page start to the last index that will still show a full page.
    
    Overrides:
    
    lastPageStart in class AbstractPager
  - nextPage
```
public void nextPage()
```
    Description copied from class: AbstractPager
    
    Advance the starting row by 'pageSize' rows.
    
    Overrides:
    
    nextPage in class AbstractPager
  - previousPage
```
public void previousPage()
```
    Description copied from class: AbstractPager
    
    Move the starting row back by 'pageSize' rows.
    
    Overrides:
    
    previousPage in class AbstractPager
  - setDisplay
```
public void setDisplay(HasRows display)
```
    Description copied from class: AbstractPager
    
    Set the HasRows to be paged.
    
    Overrides:
    
    setDisplay in class AbstractPager
    
    Parameters:
    display - the HasRows
    See Also:
    AbstractPager.getDisplay()
  - setPage
```
public void setPage(int index)
```
    Description copied from class: AbstractPager
    
    Go to a specific page.
    
    Overrides:
    
    setPage in class AbstractPager
    
    Parameters:
    index - the page index
    See Also:
    AbstractPager.getPage()
  - setPageSize
```
public void setPageSize(int pageSize)
```
    Description copied from class: AbstractPager
    
    Set the page size of the display.
    
    Overrides:
    
    setPageSize in class AbstractPager
    
    Parameters:
    pageSize - the new page size
    See Also:
    AbstractPager.getPageSize()
  - setPageStart
```
public void setPageStart(int index)
```
    Description copied from class: AbstractPager
    
    Set the page start index.
    
    Overrides:
    
    setPageStart in class AbstractPager
    
    Parameters:
    index - the index
    See Also:
    AbstractPager.getPageStart()
  - startLoading
```
public void startLoading()
```
    Let the page know that the table is loading. Call this method to clear all data from the table and hide the current range when new data is being loaded into the table.
  - createText
```
protected java.lang.String createText()
```
    Get the text to display in the pager that reflects the state of the pager.
    
    Returns:
    the text
  - onRangeOrRowCountChanged
```
protected void onRangeOrRowCountChanged()
```
    Description copied from class: AbstractPager
    
    Called when the range or row count changes. Implement this method to update the pager.
    
    Specified by:
    
    onRangeOrRowCountChanged in class AbstractPager
  - isNextButtonDisabled
```
boolean isNextButtonDisabled()
```
    Check if the next button is disabled. Visible for testing.
  - isPreviousButtonDisabled
```
boolean isPreviousButtonDisabled()
```
    Check if the previous button is disabled. Visible for testing.

Class SimplePager

Example

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

Field Summary

Fields inherited from class com.google.gwt.user.cellview.client.AbstractPager

Fields inherited from class com.google.gwt.user.client.ui.UIObject

Constructor Summary

Method Summary

Methods inherited from class com.google.gwt.user.cellview.client.AbstractPager

Methods inherited from class com.google.gwt.user.client.ui.Composite

Methods inherited from class com.google.gwt.user.client.ui.Widget

Methods inherited from class com.google.gwt.user.client.ui.UIObject

Methods inherited from class java.lang.Object

Constructor Detail

SimplePager

SimplePager

SimplePager

SimplePager

SimplePager

SimplePager

SimplePager

Method Detail

firstPage

getPage

getPageCount

hasNextPage

hasNextPages

hasPage

hasPreviousPage

hasPreviousPages

lastPage

lastPageStart

nextPage

previousPage

setDisplay

setPage

setPageSize

setPageStart

startLoading

createText

onRangeOrRowCountChanged

isNextButtonDisabled

isPreviousButtonDisabled