org.apache.tiles

Class Attribute

java.lang.Object

org.apache.tiles.Attribute

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

ListAttribute

public class Attribute
extends Object
implements Serializable, Cloneable

Common implementation of attribute definition.

Version:

$Rev: 1035061 $ $Date: 2010-11-15 07:32:50 +1100 (Mon, 15 Nov 2010) $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Expression	expressionObject The expression to evaluate.
protected Set<String>	roles The roles that can render this attribute.
protected Object	value The value of the attribute.

Constructor Summary

Constructors

Constructor and Description
Attribute() Constructor.
Attribute(Attribute attribute) Copy constructor.
Attribute(Object value) Constructor.
Attribute(Object value, Expression expression, String role, String rendererName) Constructor.
Attribute(Object value, String role) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Attribute	clone()
static Attribute	createTemplateAttribute(String template) Creates a template attribute, starting from the name of the template.
static Attribute	createTemplateAttribute(String template, String templateExpression, String templateType, String role) Creates a template attribute, starting from the name of the template.
static Attribute	createTemplateAttributeWithExpression(String templateExpression) Creates a template attribute, starting from the expression to evaluate to obtain the template.
boolean	equals(Object obj)
Expression	getExpressionObject() Returns The expression to evaluate.
String	getRenderer() Returns the renderer name to use.
String	getRole() Get role.
Set<String>	getRoles() Returns the roles that can render this attribute.
Object	getValue() Get value.
int	hashCode()
void	inherit(Attribute attribute) Inherits an attribute, i.e.
boolean	isPermitted(org.apache.tiles.request.Request request) Checks if the current user can use this attribute.
void	setExpressionObject(Expression expressionObject) Sets The expression to evaluate.
void	setRenderer(String rendererName) Sets the renderer name to use.
void	setRole(String role) Set role.
void	setRoles(Set<String> roles) Sets the roles that can render this attribute.
void	setValue(Object value) Set value.
String	toString()

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

roles

protected Set<String> roles

The roles that can render this attribute.

Since:

2.0.6

value

protected Object value

The value of the attribute.

expressionObject

protected Expression expressionObject

The expression to evaluate. Ignored if value is not null.

Since:

2.2.0

Constructor Detail

Attribute

public Attribute()

Constructor.

Attribute

public Attribute(Object value)

Constructor.

Parameters:

value - Object to store.

Attribute

public Attribute(Attribute attribute)

Copy constructor.

Parameters:

attribute - The attribute to copy from.

Attribute

public Attribute(Object value,
         String role)

Constructor.

Parameters:

value - Object to store.

role - Asociated role.

Attribute

public Attribute(Object value,
         Expression expression,
         String role,
         String rendererName)

Constructor.

Parameters:

value - Object to store. If specified, the expression parameter will be ignored.

expression - The expression to be evaluated. Ignored if the value is not null.

role - Associated role.

rendererName - The renderer name.

Since:

2.2.0

Method Detail

createTemplateAttribute

public static Attribute createTemplateAttribute(String template)

Creates a template attribute, starting from the name of the template.

Parameters:

template - The template that will be rendered.

Returns:

The template attribute.

Since:

2.1.2

createTemplateAttribute

public static Attribute createTemplateAttribute(String template,
                                String templateExpression,
                                String templateType,
                                String role)

Creates a template attribute, starting from the name of the template.

Parameters:

template - The template that will be rendered.

templateExpression - The template expression that will be evaluated to a template.

templateType - The type, or renderer, of the template. If null, the default template will be used.

role - The comma-separated roles for which the template is authorized to be rendered.

Returns:

The template attribute.

Since:

2.2.2

createTemplateAttributeWithExpression

public static Attribute createTemplateAttributeWithExpression(String templateExpression)

Creates a template attribute, starting from the expression to evaluate to obtain the template.

Parameters:

templateExpression - The expression to evaluate.

Returns:

The template attribute.

Since:

2.1.2

getRole

public String getRole()

Get role.

Returns:

the name of the required role(s)

getRoles

public Set<String> getRoles()

Returns the roles that can render this attribute.

Returns:

The enabled roles.

Since:

2.0.6

setRole

public void setRole(String role)

Set role.

Parameters:

role - Associated role.

setRoles

public void setRoles(Set<String> roles)

Sets the roles that can render this attribute.

Parameters:

roles - The enabled roles.

Since:

2.0.6

getValue

public Object getValue()

Get value.

Returns:

the value

setValue

public void setValue(Object value)

Set value.

Parameters:

value - New value.

getExpressionObject

public Expression getExpressionObject()

Returns The expression to evaluate. Ignored if value is not null.

Returns:

The expression to be evaluated.

Since:

2.2.0

setExpressionObject

public void setExpressionObject(Expression expressionObject)

Sets The expression to evaluate. Ignored if value is not null.

Parameters:

expressionObject - The expression to be evaluated.

Since:

2.2.0

toString

public String toString()

Overrides:

toString in class Object

getRenderer

public String getRenderer()

Returns the renderer name to use.

Returns:

The renderer name.

Since:

2.1.0

setRenderer

public void setRenderer(String rendererName)

Sets the renderer name to use.

Parameters:

rendererName - The renderer.

Since:

2.1.0

inherit

public void inherit(Attribute attribute)

Inherits an attribute, i.e. overwrites null properties with the ones provided by the attribute.

Parameters:

attribute - The attribute to inherit.

Since:

2.1.2

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

isPermitted

public boolean isPermitted(org.apache.tiles.request.Request request)

Checks if the current user can use this attribute.

Parameters:

request - The request context.

Returns:

true if the current user can see this attribute.

Since:

3.0.0

hashCode

public int hashCode()

Overrides:

hashCode in class Object

clone

public Attribute clone()

Overrides:

clone in class Object