org.apache.turbine.util.template
Class SelectorBox

java.lang.Object
  org.apache.turbine.util.template.SelectorBox

public class SelectorBox

extends java.lang.Object

This class is for generating a SelectorBox. It is good when used with WM because you can stuff it into the context and then just call it to generate the HTML. It can be used in other cases as well, but WM is the best case for it right now.

For example code showing the usage for this module, please see the toString() method below to see how it would be refered to from WM.

 // get the roles for a user
 RoleSet userRoles = new DefaultAccessControl().getRoles(loginid, null);
 if ( userRoles != null )
 {
     context.put("hasRoleSet", Boolean.TRUE);

     // get an array of the users roles
     Role[] usersRoles = userRoles.getRolesArray();
     // get an array of all the roles in the system
     Role[] allRoles = ((RoleSet)RolePeer.retrieveSet()).getRolesArray();

     Object[] names = new Object[allRoles.length];
     Object[] values = new Object[allRoles.length];
     for ( int i=0;i<allRoles.length; i++ )
     {
         names[i] = new Integer(allRoles[i].getPrimaryKey()).toString();
         values[i] = allRoles[i].getName();
     }

     SelectorBox sb = new SelectorBox("roleSetBox", names, values);
     sb.buildBooleans(usersRoles, allRoles);
     context.put("roleSetBox", sb);
 }
 else
 {
     context.put("hasRoleSet", Boolean.FALSE);
 }
 

Version:

$Id: SelectorBox.java 264148 2005-08-29 14:21:04Z henning $

Author:

Jon S. Stevens

Constructor Summary

SelectorBox(java.lang.String name, java.lang.Object[] names, java.lang.Object[] values)
Generic constructor, builds a select box with a default size of 1 and no selected items.

SelectorBox(java.lang.String name, java.lang.Object[] names, java.lang.Object[] values, boolean[] selected)
Generic constructor builds a select box.

SelectorBox(java.lang.String name, java.lang.Object[] names, java.lang.Object[] values, int size)
Generic constructor builds a select box.

SelectorBox(java.lang.String name, java.lang.Object[] names, java.lang.Object[] values, int size, boolean[] selected)
Primary constructor for everything.

Method Summary

void	buildBooleans(java.lang.Object[] selectedSet, java.lang.Object[] entireSet) Pass in an array of selected items and the entire set of items and it will determine which items in the selected set are also in the entireset and then build a boolean[] up that is the same size as the entireSet with markings to tell whether or not the items are marked or not.
void	reset() Resets the internal state of the SelectorBox.
SelectorBox	setMultiple(boolean val) This allows you to set the multiple attribute to the select element.
SelectorBox	setName(java.lang.String name) This allows one to set the name= attribute to the select element.
SelectorBox	setOnChange(java.lang.String script) This allows one to set an onChange attribute on the select tag
SelectorBox	setSelected(boolean[] bools) This allows one to set the array of selected booleans.
SelectorBox	setSelected(java.lang.Object name) This will set all elements as unselected, except for the element(s) with the given name.
SelectorBox	setSize(int size) This allows one to set the size of the select element.
java.lang.String	toString() This builds out the select box at a certain size.
java.lang.String	toString(int size) This builds out the select box at a certain size.

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectorBox

public SelectorBox(java.lang.String name,
                   java.lang.Object[] names,
                   java.lang.Object[] values)

Generic constructor, builds a select box with a default size of 1 and no selected items.

Parameters:

name - A String with the name for the select box.

names - An Object[] with the names.

values - An Object[] with the values.

SelectorBox

public SelectorBox(java.lang.String name,
                   java.lang.Object[] names,
                   java.lang.Object[] values,
                   int size)

Generic constructor builds a select box.

Parameters:

name - A String with the name for the select box.

names - An Object[] with the names.

values - An Object[] with the values.

size - An int specifying the size.

SelectorBox

public SelectorBox(java.lang.String name,
                   java.lang.Object[] names,
                   java.lang.Object[] values,
                   boolean[] selected)

Generic constructor builds a select box.

Parameters:

name - A String with the name for the select box.

names - An Object[] with the names.

values - An Object[] with the values.

selected - A boolean[] with the selected items.

SelectorBox

public SelectorBox(java.lang.String name,
                   java.lang.Object[] names,
                   java.lang.Object[] values,
                   int size,
                   boolean[] selected)

Primary constructor for everything.

Parameters:

name - A String with the name for the select box.

names - An Object[] with the names.

values - An Object[] with the values.

size - An int specifying the size.

selected - A boolean[] with the selected items.

Method Detail

buildBooleans

public void buildBooleans(java.lang.Object[] selectedSet,
                          java.lang.Object[] entireSet)

Pass in an array of selected items and the entire set of items and it will determine which items in the selected set are also in the entireset and then build a boolean[] up that is the same size as the entireSet with markings to tell whether or not the items are marked or not. It uses toString().equalsIgnoreCase() on the Object in the Object[] to determine if the items are equal.

Parameters:

selectedSet - An Object[].

entireSet - An Object[].

toString

public java.lang.String toString(int size)

This builds out the select box at a certain size. To use this element in WM, you simply build this object in your java code, put it into the context and then call $selectBox.toString(5).

Parameters:

size - An int with the size.

Returns:

A String with the HTML code.

reset

public void reset()

Resets the internal state of the SelectorBox.

toString

public java.lang.String toString()

This builds out the select box at a certain size. To use this element in WM, you simply build this object in your java code, put it into the context and then call $selectBox and it will build it with the default size of 1.

Returns:

A String with the HTML code.

setMultiple

public SelectorBox setMultiple(boolean val)

This allows you to set the multiple attribute to the select element. Example usage from within WM is like this:

$selectBox.setMultiple(true).toString(4)

Parameters:

val - True if multiple selection should be allowed.

Returns:

A SelectorBox (self).

setName

public SelectorBox setName(java.lang.String name)

This allows one to set the name= attribute to the select element.

Parameters:

name - A String with the name.

Returns:

A SelectorBox (self).

setSize

public SelectorBox setSize(int size)

This allows one to set the size of the select element.

Parameters:

size - An int with the size.

Returns:

A SelectorBox (self).

setOnChange

public SelectorBox setOnChange(java.lang.String script)

This allows one to set an onChange attribute on the select tag

Parameters:

script - A string with the script to put in onChange

Returns:

A SelectorBox (self).

setSelected

public SelectorBox setSelected(boolean[] bools)

This allows one to set the array of selected booleans.

Returns:

A SelectorBox (self).

setSelected

public SelectorBox setSelected(java.lang.Object name)

This will set all elements as unselected, except for the element(s) with the given name.

Parameters:

name - The name to appear as selected.

Returns:

A SelectorBox (self).