java.lang.Object
- org.zkoss.zul.event.GroupsDataEvent

```
public class GroupsDataEvent
extends java.lang.Object
```
Defines an event that encapsulates changes to a list of groups.

Since:

3.5.0

Author:

tomyeh

See Also:

GroupsModel, GroupsDataListener

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`CONTENTS_CHANGED`	Identifies one or more changes in the contents of a particular group.
`static int`	`DISABLE_CLIENT_UPDATE`	Identified the state that Component's client update to be disabled
`static int`	`ENABLE_CLIENT_UPDATE`	Identified the state that Component's client update to be enabled
`static int`	`GROUPS_ADDED`	Identifies the addition of one or more contiguous items to the list.
`static int`	`GROUPS_CHANGED`	Identifies one or more changes in the groups contents.
`static int`	`GROUPS_OPENED`	Identifies the Group opened.
`static int`	`GROUPS_REMOVED`	Identifies the removal of one or more contiguous items from the list.
`static int`	`GROUPS_RESET`	Identifies the Group is reset.
`static int`	`INTERVAL_ADDED`	Identifies the addition of one or more contiguous items to a particular group.
`static int`	`INTERVAL_REMOVED`	Identifies the removal of one or more contiguous items from a particular group.
`static int`	`MULTIPLE_CHANGED`	Identified the state of `Selectable.isMultiple()` is changed.
`static int`	`SELECTION_CHANGED`	Identifies the selection of the lists has changed.
`static int`	`STRUCTURE_CHANGED`	Identifies the structure of the lists has changed.

Constructor Summary

Constructors
Constructor	Description
`GroupsDataEvent(GroupsModel model, int type, int groupIndex, int index0, int index1)`	Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getGroupIndex()`	Returns the index of the group.
`int`	`getIndex0()`	Returns the lower index of the change range.
`int`	`getIndex1()`	Returns the upper index of the change range.
`GroupsModel`	`getModel()`	Returns the list model that fires this event.
`int`	`getType()`	Returns the event type.
`java.lang.String`	`toString()`

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

- Field Detail
  - CONTENTS_CHANGED
```
public static final int CONTENTS_CHANGED
```
    Identifies one or more changes in the contents of a particular group. The indices (getIndex0() and getIndex1() ) are in the range of the particular group.
    Note: getGroupIndex() must be non-negative.
    
    See Also:
    
    Constant Field Values
  - INTERVAL_ADDED
```
public static final int INTERVAL_ADDED
```
    Identifies the addition of one or more contiguous items to a particular group. The indices (getIndex0() and getIndex1() ) are in the range of the particular group.
    Note: getGroupIndex() must be non-negative.
    
    See Also:
    
    Constant Field Values
  - INTERVAL_REMOVED
```
public static final int INTERVAL_REMOVED
```
    Identifies the removal of one or more contiguous items from a particular group. The indices (getIndex0() and getIndex1() ) are in the range of the particular group.
    Note: getGroupIndex() must be non-negative.
    
    See Also:
    
    Constant Field Values
  - STRUCTURE_CHANGED
```
public static final int STRUCTURE_CHANGED
```
    Identifies the structure of the lists has changed. @since 5.0.7
    
    See Also:
    
    Constant Field Values
  - GROUPS_CHANGED
```
public static final int GROUPS_CHANGED
```
    Identifies one or more changes in the groups contents. The indices (getIndex0() and getIndex1() ) are the indices of groups. Note: getGroupIndex() is ignored.
    
    See Also:
    
    Constant Field Values
  - GROUPS_ADDED
```
public static final int GROUPS_ADDED
```
    Identifies the addition of one or more contiguous items to the list. The indices (getIndex0() and getIndex1() ) are the indices of groups. Note: getGroupIndex() is ignored.
    
    See Also:
    
    Constant Field Values
  - GROUPS_REMOVED
```
public static final int GROUPS_REMOVED
```
    Identifies the removal of one or more contiguous items from the list. The indices (getIndex0() and getIndex1() ) are the indices of groups. Note: getGroupIndex() is ignored.
    
    See Also:
    
    Constant Field Values
  - GROUPS_RESET
```
public static final int GROUPS_RESET
```
    Identifies the Group is reset.
    
    Since:
    
    5.0.0
    
    See Also:
    
    Constant Field Values
  - SELECTION_CHANGED
```
public static final int SELECTION_CHANGED
```
    Identifies the selection of the lists has changed. Notice that the objects being selected can be found by calling Selectable.getSelection(). Moreover, getIndex0() and getIndex1() are both meaningless.
    
    Since:
    
    6.0.0
    
    See Also:
    
    Constant Field Values
  - MULTIPLE_CHANGED
```
public static final int MULTIPLE_CHANGED
```
    Identified the state of Selectable.isMultiple() is changed.
    
    Since:
    
    6.0.0
    
    See Also:
    
    Constant Field Values
  - GROUPS_OPENED
```
public static final int GROUPS_OPENED
```
    Identifies the Group opened.
    
    Since:
    
    7.0.6
    
    See Also:
    
    Constant Field Values
  - DISABLE_CLIENT_UPDATE
```
public static final int DISABLE_CLIENT_UPDATE
```
    Identified the state that Component's client update to be disabled
    
    Since:
    
    8.0.0
    
    See Also:
    
    Constant Field Values
  - ENABLE_CLIENT_UPDATE
```
public static final int ENABLE_CLIENT_UPDATE
```
    Identified the state that Component's client update to be enabled
    
    Since:
    
    8.0.0
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - GroupsDataEvent
```
public GroupsDataEvent(GroupsModel model,
                       int type,
                       int groupIndex,
                       int index0,
                       int index1)
```
    Constructor.
    
    Parameters:
    
    type - one of CONTENTS_CHANGED, INTERVAL_ADDED, INTERVAL_REMOVED, GROUPS_CHANGED, GROUPS_ADDED, or GROUPS_REMOVED..
    
    groupIndex - the index of the group being changed. It is used only if type is one of CONTENTS_CHANGED, INTERVAL_ADDED, or INTERVAL_REMOVED.
    
    index0 - the lower index of the change range. For simple element, index0 is the same as index1. -1 means the first element (the same as 0).
    
    index1 - the upper index of the change range. -1 means the last element.
- Method Detail
  - getModel
```
public GroupsModel getModel()
```
    Returns the list model that fires this event.
  - getType
```
public int getType()
```
    Returns the event type. One of CONTENTS_CHANGED, INTERVAL_ADDED, INTERVAL_REMOVED, GROUPS_CHANGED, GROUPS_ADDED, or GROUPS_REMOVED.
  - getGroupIndex
```
public int getGroupIndex()
```
    Returns the index of the group. It is used only if getType() is one of CONTENTS_CHANGED, INTERVAL_ADDED, INTERVAL_REMOVED.
  - getIndex0
```
public int getIndex0()
```
    Returns the lower index of the change range. For a single element/group, this value is the same as that returned by getIndex1().
  - getIndex1
```
public int getIndex1()
```
    Returns the upper index of the change range. For a single element/group, this value is the same as that returned by getIndex0().
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object

Class GroupsDataEvent

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

CONTENTS_CHANGED

INTERVAL_ADDED

INTERVAL_REMOVED

STRUCTURE_CHANGED

GROUPS_CHANGED

GROUPS_ADDED

GROUPS_REMOVED

GROUPS_RESET

SELECTION_CHANGED

MULTIPLE_CHANGED

GROUPS_OPENED

DISABLE_CLIENT_UPDATE

ENABLE_CLIENT_UPDATE

Constructor Detail

GroupsDataEvent

Method Detail

getModel

getType

getGroupIndex

getIndex0

getIndex1

toString