org.zkoss.zul
Class SimpleGroupsModel<D,H,F,E>

java.lang.Object
  org.zkoss.zul.AbstractGroupsModel<D,java.lang.Object,F,E>
      org.zkoss.zul.SimpleGroupsModel<D,H,F,E>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, ComponentCloneListener, GroupsSortableModel<D>, Selectable<E>, GroupsModel<D,java.lang.Object,F>

public class SimpleGroupsModel<D,H,F,E>
extends AbstractGroupsModel<D,java.lang.Object,F,E>
implements GroupsSortableModel<D>, ComponentCloneListener, java.lang.Cloneable

A simple implementation of GroupsModel. This implementation assumes the data is grouped, and the grouping structure is immutable. If you allow the user to re-group the content, use GroupsModelArray instead.

Generics:

D

The class of each data

H

The class of each group header

F

The class of each group footer

E

The class of each selection. It is the common base class of D, H, F. In other words, D, H and F must extend from E.

For more information, please refer to ZK Developer's Reference: Groups Model

By default, the model support cloneable when the component is cloned. (since 6.0.0)

Since:

3.5.0

Author:

Dennis.Chen

See Also:

GroupsModel, GroupsModelArray, ComponentCloneListener, Serialized Form

Field Summary

protected java.util.List<java.util.List<D>>	_data member field to store group data
protected java.util.List<F>	_foots member field to store group foot data
protected java.util.List<H>	_heads member field to store group head data
protected boolean[]	_opens meMber field to store group close status

Fields inherited from class org.zkoss.zul.AbstractGroupsModel

_selection

Constructor Summary

SimpleGroupsModel(D[][] data)
Constructs a groups data model with a two-dimensional array of data.

SimpleGroupsModel(D[][] data, H[] heads)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

SimpleGroupsModel(D[][] data, H[] heads, F[] foots)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

SimpleGroupsModel(D[][] data, H[] heads, F[] foots, boolean[] closes)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

SimpleGroupsModel(java.util.List<java.util.List<D>> data)
Constructs a groups data model with a two-dimensional list of data.

SimpleGroupsModel(java.util.List<java.util.List<D>> data, java.util.List<H> heads)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

SimpleGroupsModel(java.util.List<java.util.List<D>> data, java.util.List<H> heads, java.util.List<F> foots)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

SimpleGroupsModel(java.util.List<java.util.List<D>> data, java.util.List<H> heads, java.util.List<F> foots, boolean[] closes)
Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads.

Method Summary

boolean	addOpenGroup(int groupIndex) Opens the group at the specified index.
java.lang.Object	clone()
D	getChild(int groupIndex, int index) Returns the child value of the specified group at the specified index.
int	getChildCount(int groupIndex) Returns the number of children of the specified group.
java.lang.Object	getGroup(int groupIndex) Returns the data representing the group.
int	getGroupCount() Returns the number of groups.
F	getGroupfoot(int groupIndex) Returns the foot value of the specified group, or null if the specified group does not have any foot.
void	group(java.util.Comparator<D> cmpr, boolean ascending, int colIndex) Do nothing in default implementation, however developer can override it to re-group by manipulating _data,_heads,_foots
boolean	hasGroupfoot(int groupIndex) Returns if the specified group has a foot value.
boolean	isClose(int groupIndex) Deprecated. As of release 6.0.0, replace with isGroupOpened(int)
boolean	isGroupOpened(int groupIndex) Whether the group is open at the specified index.
boolean	removeOpenGroup(int groupIndex) Closes the group at the specified index.
void	setClose(int groupIndex, boolean close) Deprecated. As of release 6.0.0, replace with addOpenGroup(int) and removeOpenGroup(int).
boolean	setOpenGroup0(int groupIndex, boolean open)
void	sort(java.util.Comparator<D> cmpr, boolean ascending, int colIndex) Sort each data in each group by Comparator, developer could override sortGroupData(Object, List, Comparator, boolean, int) (Since 6.0.1) to customize.
protected void	sortGroupData(java.lang.Object group, D[] groupdata, java.util.Comparator<D> cmpr, boolean ascending, int colIndex) Deprecated. As of release 6.0.1, replaced with sortGroupData(Object, List, Comparator, boolean, int).
protected void	sortGroupData(java.lang.Object group, java.util.List<D> groupdata, java.util.Comparator<D> cmpr, boolean ascending, int colIndex) Sorts a group of data.
java.lang.Object	willClone(Component comp) Allows the model to clone

Methods inherited from class org.zkoss.zul.AbstractGroupsModel

addGroupsDataListener, addToSelection, clearSelection, fireEvent, fireSelectionEvent, getSelection, isMultiple, isSelected, isSelectionEmpty, newEmptySelection, readSelection, removeAllSelection, removeFromSelection, removeGroupsDataListener, retainAllSelection, setMultiple, setSelection, writeSelection

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_data

protected java.util.List<java.util.List<D>> _data

member field to store group data

_heads

protected java.util.List<H> _heads

member field to store group head data

_foots

protected java.util.List<F> _foots

member field to store group foot data

_opens

protected boolean[] _opens

meMber field to store group close status

Constructor Detail

SimpleGroupsModel

public SimpleGroupsModel(D[][] data)

Constructs a groups data model with a two-dimensional array of data. For example, if you have three groups and each of them have 5 elements, then the data argument must be a 3 x 5 array. Furthermore, data[0] is the array of elements of the first group, data[1] is elements of the second group, and so on. Of course, each group might have different number of elements.

This constructor assumes there is no group foot at all.

Parameters:

data - a two-dimensional array to represent groups data, where data[0] is the array of element of the first group, data[1] is of the second group and so on.

SimpleGroupsModel

public SimpleGroupsModel(D[][] data,
                         H[] heads)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. hasGroupfoot(int) will always return false

Parameters:

data - a 2 dimension array to represent groups data

heads - an array to represent head data of group

SimpleGroupsModel

public SimpleGroupsModel(D[][] data,
                         H[] heads,
                         F[] foots)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. The return value of hasGroupfoot(int) and getGroupfoot(int) are depends on foots.

Parameters:

data - a 2 dimension array to represent groups data

heads - an array to represent head data of group

foots - an array to represent foot data of group, if an element in this array is null, then hasGroupfoot(int) will return false in corresponding index.

SimpleGroupsModel

public SimpleGroupsModel(D[][] data,
                         H[] heads,
                         F[] foots,
                         boolean[] closes)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. The return value of hasGroupfoot(int) and getGroupfoot(int) are depends on foots.

Notice that, for backward compatibility, the last argument is closes.

Parameters:

data - a 2 dimension array to represent groups data

heads - an array to represent head data of group

foots - an array to represent foot data of group, if an element in this array is null, then hasGroupfoot(int) will return false in corresponding index.

closes - an array of boolean to represent close status of group. If not specified, then isClose(int) will return false in corresponding index(i.e. group is default to open)

SimpleGroupsModel

public SimpleGroupsModel(java.util.List<java.util.List<D>> data)

Constructs a groups data model with a two-dimensional list of data. For example, if you have three groups and each of them have 5 elements, then the data argument must be a 3 x 5 list. Furthermore, list.get(0) is the elements of the first group, list.get(1) is the elements of the second group, and so on. Of course, each group might have different number of elements.

This constructor assumes there is no group foot at all.

Parameters:

data - a two-dimensional list to represent groups data.

Since:

6.0.1

SimpleGroupsModel

public SimpleGroupsModel(java.util.List<java.util.List<D>> data,
                         java.util.List<H> heads)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. hasGroupfoot(int) will always return false

Parameters:

data - a two dimensional list to represent groups data

heads - a list to represent head data of group

Since:

6.0.1

SimpleGroupsModel

public SimpleGroupsModel(java.util.List<java.util.List<D>> data,
                         java.util.List<H> heads,
                         java.util.List<F> foots)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. The return value of hasGroupfoot(int) and getGroupfoot(int) are depends on foots.

Parameters:

data - a two dimensional list to represent groups data

heads - a list to represent head data of group

foots - a list to represent foot data of group, if an element in this list is null, then hasGroupfoot(int) will return false in corresponding index.

Since:

6.0.1

SimpleGroupsModel

public SimpleGroupsModel(java.util.List<java.util.List<D>> data,
                         java.util.List<H> heads,
                         java.util.List<F> foots,
                         boolean[] closes)

Constructor When using this constructor , getGroup(int) will return the corresponding Object depends on heads. The return value of hasGroupfoot(int) and getGroupfoot(int) are depends on foots.

Notice that, for backward compatibility, the last argument is closes.

Parameters:

data - a two dimensional list to represent groups data

heads - a list to represent head data of group

foots - a list to represent foot data of group, if an element in this list is null, then hasGroupfoot(int) will return false in corresponding index.

closes - an array of boolean to represent close status of group. If not specified, then isClose(int) will return false in corresponding index(i.e. group is default to open)

Since:

6.0.1

Method Detail

getChild

public D getChild(int groupIndex,
                  int index)

Description copied from interface: GroupsModel

Returns the child value of the specified group at the specified index.

Specified by:

getChild in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

index - the index of the element in the group.

getChildCount

public int getChildCount(int groupIndex)

Description copied from interface: GroupsModel

Returns the number of children of the specified group.

Note: it does not include the group foot (GroupsModel.getGroupfoot(int)).

Specified by:

getChildCount in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

getGroup

public java.lang.Object getGroup(int groupIndex)

Returns the data representing the group. It is H, if heads is specified in the constructor, or D[] if not specified.

Specified by:

getGroup in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

getGroupCount

public int getGroupCount()

Description copied from interface: GroupsModel

Returns the number of groups.

Specified by:

getGroupCount in interface GroupsModel<D,java.lang.Object,F>

getGroupfoot

public F getGroupfoot(int groupIndex)

Description copied from interface: GroupsModel

Returns the foot value of the specified group, or null if the specified group does not have any foot. It is used to render Groupfoot and Listgroupfoot.

Note: it is ignored if GroupsModel.hasGroupfoot(int) returns false.

Specified by:

getGroupfoot in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

hasGroupfoot

public boolean hasGroupfoot(int groupIndex)

Description copied from interface: GroupsModel

Returns if the specified group has a foot value.

Specified by:

hasGroupfoot in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

isClose

public boolean isClose(int groupIndex)

Deprecated. As of release 6.0.0, replace with isGroupOpened(int)

setClose

public void setClose(int groupIndex,
                     boolean close)

Deprecated. As of release 6.0.0, replace with addOpenGroup(int) and removeOpenGroup(int).

isGroupOpened

public boolean isGroupOpened(int groupIndex)

Description copied from interface: GroupsModel

Whether the group is open at the specified index. It is used to render Group and Listgroup.

Default: true

Specified by:

isGroupOpened in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

addOpenGroup

public boolean addOpenGroup(int groupIndex)

Description copied from interface: GroupsModel

Opens the group at the specified index.

Specified by:

addOpenGroup in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

Returns:

if it has been added successfully; false if it was opened.

removeOpenGroup

public boolean removeOpenGroup(int groupIndex)

Description copied from interface: GroupsModel

Closes the group at the specified index.

Specified by:

removeOpenGroup in interface GroupsModel<D,java.lang.Object,F>

Parameters:

groupIndex - the index of the group.

Returns:

if it has been removed successfully; false if it was closed.

setOpenGroup0

public boolean setOpenGroup0(int groupIndex,
                             boolean open)

group

public void group(java.util.Comparator<D> cmpr,
                  boolean ascending,
                  int colIndex)

Do nothing in default implementation, however developer can override it to re-group by manipulating _data,_heads,_foots

Specified by:

group in interface GroupsSortableModel<D>

Parameters:

cmpr - the comparator assigned to Column.setSortAscending(java.util.Comparator) and other relative methods. If developers didn't assign any one, the method is returned directly.

ascending - whether to sort in the ascending order (or in the descending order)

colIndex - the index of the column

sort

public void sort(java.util.Comparator<D> cmpr,
                 boolean ascending,
                 int colIndex)

Sort each data in each group by Comparator, developer could override sortGroupData(Object, List, Comparator, boolean, int) (Since 6.0.1) to customize.

Specified by:

sort in interface GroupsSortableModel<D>

Parameters:

cmpr - the comparator assigned to Listheader.setSortAscending(java.util.Comparator) and other relative methods. If developers didn't assign any one, the default comparator is used. Notice that it is capable to sort the data in the correct order, you could ignore the ascending parameter.

ascending - whether to sort in the ascending order (or in the descending order, if false). Notice that it is used only to provide additional information. To sort the data correctly, you could count on the cmpr parameter only.

colIndex - the index of the column

sortGroupData

protected void sortGroupData(java.lang.Object group,
                             D[] groupdata,
                             java.util.Comparator<D> cmpr,
                             boolean ascending,
                             int colIndex)

Deprecated. As of release 6.0.1, replaced with sortGroupData(Object, List, Comparator, boolean, int).

sortGroupData

protected void sortGroupData(java.lang.Object group,
                             java.util.List<D> groupdata,
                             java.util.Comparator<D> cmpr,
                             boolean ascending,
                             int colIndex)

Sorts a group of data.

Default: Collections.sort(groupdata, cmpr)

Parameters:

group - the group (the same as getGroup(int))

groupdata - the group of data to sort

Since:

6.0.1

clone

public java.lang.Object clone()

Overrides:

clone in class AbstractGroupsModel<D,java.lang.Object,F,E>

willClone

public java.lang.Object willClone(Component comp)

Allows the model to clone

Specified by:

willClone in interface ComponentCloneListener

Parameters:

comp - the cloned component (not the original one)

Returns:

the object to be used in the cloned component. If this object is returned, the same object is shared by the cloned and original components. If other object is returned, it is used by the cloned component. If null is returned, it is not used by the cloned component at all.

Since:

6.0.0