TagAttributeImpl (JSF Reference Implementation 2.3.9.SP09 API)

java.lang.Object
- javax.faces.view.facelets.TagAttribute
- - com.sun.faces.facelets.tag.TagAttributeImpl

```
public class TagAttributeImpl
extends javax.faces.view.facelets.TagAttribute
```
Representation of a Tag's attribute in a Facelet File

Version:

$Id$

Author:

Jacob Hookom

Constructor Summary

Constructors
Constructor and Description
`TagAttributeImpl()`
`TagAttributeImpl(javax.faces.view.Location location, String ns, String localName, String qName, String value)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`getBoolean(javax.faces.view.facelets.FaceletContext ctx)` If literal,return `Boolean.valueOf(java.lang.String)` passing our value, otherwise call `getObject(FaceletContext, Class)`.
`int`	`getInt(javax.faces.view.facelets.FaceletContext ctx)` If literal, call `Integer.parseInt(String)`, otherwise call `getObject(FaceletContext, Class)`.
`String`	`getLocalName()` Local name of this attribute
`javax.faces.view.Location`	`getLocation()` The location of this attribute in the FaceletContext
`javax.el.MethodExpression`	`getMethodExpression(javax.faces.view.facelets.FaceletContext ctx, Class type, Class[] paramTypes)` Create a MethodExpression, using this attribute's value as the expression String.
`String`	`getNamespace()` The resolved Namespace for this attribute
`Object`	`getObject(javax.faces.view.facelets.FaceletContext ctx)` Delegates to getObject with Object.class as a param
`Object`	`getObject(javax.faces.view.facelets.FaceletContext ctx, Class type)` If literal, simply coerce our String literal value using an ExpressionFactory, otherwise create a ValueExpression and evaluate it.
`String`	`getQName()` The qualified name for this attribute
`javax.faces.view.facelets.Tag`	`getTag()` A reference to the Tag for which this class represents the attributes.
`String`	`getValue()` Return the literal value of this attribute
`String`	`getValue(javax.faces.view.facelets.FaceletContext ctx)` If literal, then return our value, otherwise delegate to getObject, passing String.class.
`javax.el.ValueExpression`	`getValueExpression(javax.faces.view.facelets.FaceletContext ctx, Class type)` Create a ValueExpression, using this attribute's literal value and the passed expected type.
`javax.el.ValueExpression`	`getValueExpression(javax.faces.view.facelets.FaceletContext ctx, String expr, Class type)`
`boolean`	`isLiteral()` If this TagAttributeImpl is literal (not #{..} or ${..})
`void`	`setTag(javax.faces.view.facelets.Tag tag)` Set a reference to the Tag for which this class represents the attributes.
`String`	`toString()`

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

- Constructor Detail
  - TagAttributeImpl
```
public TagAttributeImpl()
```
  - TagAttributeImpl
```
public TagAttributeImpl(javax.faces.view.Location location,
                        String ns,
                        String localName,
                        String qName,
                        String value)
```
- Method Detail
  - getBoolean
```
public boolean getBoolean(javax.faces.view.facelets.FaceletContext ctx)
```
    If literal,return Boolean.valueOf(java.lang.String) passing our value, otherwise call getObject(FaceletContext, Class).
    
    Specified by:
    
    getBoolean in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    Returns:
    
    boolean value
    
    See Also:
    
    Boolean.valueOf(java.lang.String), getObject(FaceletContext, Class)
  - getInt
```
public int getInt(javax.faces.view.facelets.FaceletContext ctx)
```
    If literal, call Integer.parseInt(String), otherwise call getObject(FaceletContext, Class).
    
    Specified by:
    
    getInt in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    Returns:
    
    int value
    
    See Also:
    
    Integer.parseInt(java.lang.String), getObject(FaceletContext, Class)
  - getLocalName
```
public String getLocalName()
```
    Local name of this attribute
    
    Specified by:
    
    getLocalName in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    local name of this attribute
  - getLocation
```
public javax.faces.view.Location getLocation()
```
    The location of this attribute in the FaceletContext
    
    Specified by:
    
    getLocation in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    the TagAttributeImpl's location
  - getMethodExpression
```
public javax.el.MethodExpression getMethodExpression(javax.faces.view.facelets.FaceletContext ctx,
                                                     Class type,
                                                     Class[] paramTypes)
```
    Create a MethodExpression, using this attribute's value as the expression String.
    
    Specified by:
    
    getMethodExpression in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    type - expected return type
    
    paramTypes - parameter type
    
    Returns:
    
    a MethodExpression instance
    
    See Also:
    
    ExpressionFactory.createMethodExpression(javax.el.ELContext, java.lang.String, java.lang.Class, java.lang.Class[]), MethodExpression
  - getNamespace
```
public String getNamespace()
```
    The resolved Namespace for this attribute
    
    Specified by:
    
    getNamespace in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    resolved Namespace
  - getObject
```
public Object getObject(javax.faces.view.facelets.FaceletContext ctx)
```
    Delegates to getObject with Object.class as a param
    
    Specified by:
    
    getObject in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    Returns:
    
    Object representation of this attribute's value
    
    See Also:
    
    getObject(FaceletContext, Class)
  - getQName
```
public String getQName()
```
    The qualified name for this attribute
    
    Specified by:
    
    getQName in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    the qualified name for this attribute
  - getTag
```
public javax.faces.view.facelets.Tag getTag()
```
    Description copied from class: javax.faces.view.facelets.TagAttribute
    
    A reference to the Tag for which this class represents the attributes. For compatibility with previous implementations, an implementation is provided that returns null.
    
    Overrides:
    
    getTag in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    the Tag for which this class represents the attributes.
  - setTag
```
public void setTag(javax.faces.view.facelets.Tag tag)
```
    Description copied from class: javax.faces.view.facelets.TagAttribute
    
    Set a reference to the Tag for which this class represents the attributes. The VDL runtime must ensure that this method is called before any FaceletHandlers for this element are instantiated. For compatibility with previous implementations, a no-op implementation is provided.
    
    Overrides:
    
    setTag in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    tag - the tag we represent.
  - getValue
```
public String getValue()
```
    Return the literal value of this attribute
    
    Specified by:
    
    getValue in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    literal value
  - getValue
```
public String getValue(javax.faces.view.facelets.FaceletContext ctx)
```
    If literal, then return our value, otherwise delegate to getObject, passing String.class.
    
    Specified by:
    
    getValue in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    Returns:
    
    String value of this attribute
    
    See Also:
    
    getObject(FaceletContext, Class)
  - getObject
```
public Object getObject(javax.faces.view.facelets.FaceletContext ctx,
                        Class type)
```
    If literal, simply coerce our String literal value using an ExpressionFactory, otherwise create a ValueExpression and evaluate it.
    
    Specified by:
    
    getObject in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    type - expected return type
    
    Returns:
    
    Object value of this attribute
    
    See Also:
    
    ExpressionFactory.coerceToType(java.lang.Object, java.lang.Class), ExpressionFactory.createValueExpression(javax.el.ELContext, java.lang.String, java.lang.Class), ValueExpression
  - getValueExpression
```
public javax.el.ValueExpression getValueExpression(javax.faces.view.facelets.FaceletContext ctx,
                                                   Class type)
```
    Create a ValueExpression, using this attribute's literal value and the passed expected type.
    
    Specified by:
    
    getValueExpression in class javax.faces.view.facelets.TagAttribute
    
    Parameters:
    
    ctx - FaceletContext to use
    
    type - expected return type
    
    Returns:
    
    ValueExpression instance
    
    See Also:
    
    ExpressionFactory.createValueExpression(javax.el.ELContext, java.lang.String, java.lang.Class), ValueExpression
  - isLiteral
```
public boolean isLiteral()
```
    If this TagAttributeImpl is literal (not #{..} or ${..})
    
    Specified by:
    
    isLiteral in class javax.faces.view.facelets.TagAttribute
    
    Returns:
    
    true if this attribute is literal
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - getValueExpression
```
public javax.el.ValueExpression getValueExpression(javax.faces.view.facelets.FaceletContext ctx,
                                                   String expr,
                                                   Class type)
```

Class TagAttributeImpl

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

TagAttributeImpl

TagAttributeImpl

Method Detail

getBoolean

getInt

getLocalName

getLocation

getMethodExpression

getNamespace

getObject

getQName

getTag

setTag

getValue

getValue

getObject

getValueExpression

isLiteral

toString

getValueExpression