How to use

setVisibleRange

method

in

com.google.gwt.view.client.HasRows

 @Override
 public void setPageStart(int index) {
  if (getDisplay() != null) {
   Range range = getDisplay().getVisibleRange();
   int pageSize = range.getLength();
   index = Math.max(0, index);
   if (index != range.getStart()) {
    getDisplay().setVisibleRange(index, pageSize);
   }
  }
 }
};

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.max(range.getLength() - increment, increment);
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

/**
 * Set the page size of the display.
 *
 * @param pageSize the new page size
 * @see #getPageSize()
 */
protected void setPageSize(int pageSize) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageStart = range.getStart();
  if (isRangeLimited && display.isRowCountExact()) {
   pageStart = Math.min(pageStart, display.getRowCount() - pageSize);
  }
  pageStart = Math.max(0, pageStart);
  display.setVisibleRange(pageStart, pageSize);
 }
}

/**
 * Go to a specific page.
 *
 * @param index the page index
 * @see #getPage()
 */
protected void setPage(int index) {
 if (display != null
   && (!isRangeLimited || !display.isRowCountExact() || hasPage(index))) {
  // We don't use the local version of setPageStart because it would
  // constrain the index, but the user probably wants to use absolute page
  // indexes.
  int pageSize = getPageSize();
  display.setVisibleRange(pageSize * index, pageSize);
 }
}

/**
 * Set the page start index.
 *
 * @param index the index
 * @see #getPageStart()
 */
protected void setPageStart(int index) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageSize = range.getLength();
  if (isRangeLimited && display.isRowCountExact()) {
   index = Math.min(index, display.getRowCount() - pageSize);
  }
  index = Math.max(0, index);
  if (index != range.getStart()) {
   display.setVisibleRange(index, pageSize);
  }
 }
}

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.min(range.getLength() + increment,
     display.getRowCount()
       + (display.isRowCountExact() ? 0 : increment));
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.max(range.getLength() - increment, increment);
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.max(range.getLength() - increment, increment);
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

/**
 * Set the page size of the display.
 *
 * @param pageSize the new page size
 * @see #getPageSize()
 */
protected void setPageSize(int pageSize) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageStart = range.getStart();
  if (isRangeLimited && display.isRowCountExact()) {
   pageStart = Math.min(pageStart, display.getRowCount() - pageSize);
  }
  pageStart = Math.max(0, pageStart);
  display.setVisibleRange(pageStart, pageSize);
 }
}

/**
 * Set the page size of the display.
 *
 * @param pageSize the new page size
 * @see #getPageSize()
 */
protected void setPageSize(int pageSize) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageStart = range.getStart();
  if (isRangeLimited && display.isRowCountExact()) {
   pageStart = Math.min(pageStart, display.getRowCount() - pageSize);
  }
  pageStart = Math.max(0, pageStart);
  display.setVisibleRange(pageStart, pageSize);
 }
}

/**
 * Set the page start index.
 *
 * @param index the index
 * @see #getPageStart()
 */
protected void setPageStart(int index) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageSize = range.getLength();
  if (isRangeLimited && display.isRowCountExact()) {
   index = Math.min(index, display.getRowCount() - pageSize);
  }
  index = Math.max(0, index);
  if (index != range.getStart()) {
   display.setVisibleRange(index, pageSize);
  }
 }
}

/**
 * Go to a specific page.
 *
 * @param index the page index
 * @see #getPage()
 */
protected void setPage(int index) {
 if (display != null
   && (!isRangeLimited || !display.isRowCountExact() || hasPage(index))) {
  // We don't use the local version of setPageStart because it would
  // constrain the index, but the user probably wants to use absolute page
  // indexes.
  int pageSize = getPageSize();
  display.setVisibleRange(pageSize * index, pageSize);
 }
}

/**
 * Go to a specific page.
 *
 * @param index the page index
 * @see #getPage()
 */
protected void setPage(int index) {
 if (display != null
   && (!isRangeLimited || !display.isRowCountExact() || hasPage(index))) {
  // We don't use the local version of setPageStart because it would
  // constrain the index, but the user probably wants to use absolute page
  // indexes.
  int pageSize = getPageSize();
  display.setVisibleRange(pageSize * index, pageSize);
 }
}

/**
 * Set the page start index.
 *
 * @param index the index
 * @see #getPageStart()
 */
protected void setPageStart(int index) {
 if (display != null) {
  Range range = display.getVisibleRange();
  int pageSize = range.getLength();
  if (isRangeLimited && display.isRowCountExact()) {
   index = Math.min(index, display.getRowCount() - pageSize);
  }
  index = Math.max(0, index);
  if (index != range.getStart()) {
   display.setVisibleRange(index, pageSize);
  }
 }
}

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.min(range.getLength() + increment,
     display.getRowCount()
       + (display.isRowCountExact() ? 0 : increment));
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

 public void onClick(ClickEvent event) {
  // Display should be non-null, but we check defensively.
  HasRows display = getDisplay();
  if (display != null) {
   Range range = display.getVisibleRange();
   int pageSize = Math.min(range.getLength() + increment,
     display.getRowCount()
       + (display.isRowCountExact() ? 0 : increment));
   display.setVisibleRange(range.getStart(), pageSize);
  }
 }
});

@Override
public void setPageStart(int index) {
  HasRows display = getDisplay();
  if (display != null) {
    Range range = display.getVisibleRange();
    int pageSize = range.getLength();
    if ((!isRangeLimited() || display.getRowCount() <= pageSize) && display.isRowCountExact()) {
      index = Math.min(index, display.getRowCount() - pageSize);
    }
    index = Math.max(0, index);
    if (index != range.getStart()) {
      display.setVisibleRange(index, pageSize);
    }
  }
}

@Override
public void setPageStart(int index) {
  if (getDisplay() != null) {
    Range range = getDisplay().getVisibleRange();
    int displayPageSize = range.getLength();
    if (!isRangeLimited() && getDisplay().isRowCountExact()) {
      index = Math.min(index,
               getDisplay().getRowCount() - displayPageSize);
    }
    index = Math.max(0,
             index);
    if (index != range.getStart()) {
      getDisplay().setVisibleRange(index,
                     displayPageSize);
    }
  }
}

@Override
public void setPageStart(int index) {
  if (getDisplay() != null) {
    Range range = getDisplay().getVisibleRange();
    int displayPageSize = range.getLength();
    if (!isRangeLimited() && getDisplay().isRowCountExact()) {
      index = Math.min(index,
               getDisplay().getRowCount() - displayPageSize);
    }
    index = Math.max(0,
             index);
    if (index != range.getStart()) {
      getDisplay().setVisibleRange(index,
                     displayPageSize);
    }
  }
}

@Override
public void setPageStart( int index ) {
  if ( getDisplay() != null ) {
    Range range = getDisplay().getVisibleRange();
    int displayPageSize = getPageSize();
    if ( isRangeLimited()
        && getDisplay().isRowCountExact() ) {
      displayPageSize = Math.min( getPageSize(),
                    getDisplay().getRowCount()
                        - index );
    }
    index = Math.max( 0,
             index );
    if ( index != range.getStart() ) {
      getDisplay().setVisibleRange( index,
                     displayPageSize );
    }
  }
}