org.apache.strutsel.taglib.tiles
Class ELGetAttributeTag

java.lang.Object
  extended byjavax.servlet.jsp.tagext.TagSupport
      extended byorg.apache.struts.taglib.tiles.GetAttributeTag
          extended byorg.apache.strutsel.taglib.tiles.ELGetAttributeTag
All Implemented Interfaces:
org.apache.struts.taglib.tiles.ComponentConstants, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag

public class ELGetAttributeTag
extends org.apache.struts.taglib.tiles.GetAttributeTag

This is the tag handler for <tiles-el:get>, which gets content from the request scope and either includes the content or prints it, depending upon the value of the content's direct attribute.

This tag is intended to be compatible with the same tag from Templates (David Geary). Implementation extends InsertTag for facility (no so well). The only difference is the default value of attribute 'ignore', which is true for this tag (default behavior of David Geary's templates).

This class is a subclass of the class org.apache.struts.taglib.tiles.GetAttributeTag which provides most of the described functionality. This subclass allows all attribute values to be specified as expressions utilizing the JavaServer Pages Standard Library expression language.

Version:
$Rev: 54933 $
See Also:
Serialized Form

Field Summary
private  java.lang.String ignoreExpr
          Instance variable mapped to "ignore" tag attribute.
private  java.lang.String nameExpr
          Instance variable mapped to "name" tag attribute.
private  java.lang.String roleExpr
          Instance variable mapped to "role" tag attribute.
 
Fields inherited from class org.apache.struts.taglib.tiles.GetAttributeTag
 
Fields inherited from class javax.servlet.jsp.tagext.TagSupport
id, pageContext
 
Fields inherited from interface org.apache.struts.taglib.tiles.ComponentConstants
COMPONENT_CONTEXT, COMPONENT_SCOPE, EXCEPTION_KEY, LOCALE_KEY
 
Fields inherited from interface javax.servlet.jsp.tagext.IterationTag
EVAL_BODY_AGAIN
 
Fields inherited from interface javax.servlet.jsp.tagext.Tag
EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE
 
Constructor Summary
ELGetAttributeTag()
           
 
Method Summary
 int doStartTag()
          Process the start tag.
private  void evaluateExpressions()
          Processes all attribute values which use the JSTL expression evaluation engine to determine their values.
 java.lang.String getIgnoreExpr()
          Getter method for "ignore" tag attribute.
 java.lang.String getNameExpr()
          Getter method for "name" tag attribute.
 java.lang.String getRoleExpr()
          Getter method for "role" tag attribute.
 void release()
          Resets attribute values for tag reuse.
 void setIgnoreExpr(java.lang.String ignoreExpr)
          Setter method for "ignore" tag attribute.
 void setNameExpr(java.lang.String nameExpr)
          Setter method for "name" tag attribute.
 void setRoleExpr(java.lang.String roleExpr)
          Setter method for "role" tag attribute.
 
Methods inherited from class org.apache.struts.taglib.tiles.GetAttributeTag
doEndTag, getAttribute, getIgnore, getName, getRole, setAttribute, setIgnore, setName, setRole
 
Methods inherited from class javax.servlet.jsp.tagext.TagSupport
doAfterBody, findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

nameExpr

private java.lang.String nameExpr
Instance variable mapped to "name" tag attribute. (Mapping set in associated BeanInfo class.)


ignoreExpr

private java.lang.String ignoreExpr
Instance variable mapped to "ignore" tag attribute. (Mapping set in associated BeanInfo class.)


roleExpr

private java.lang.String roleExpr
Instance variable mapped to "role" tag attribute. (Mapping set in associated BeanInfo class.)

Constructor Detail

ELGetAttributeTag

public ELGetAttributeTag()
Method Detail

getNameExpr

public java.lang.String getNameExpr()
Getter method for "name" tag attribute. (Mapping set in associated BeanInfo class.)


getIgnoreExpr

public java.lang.String getIgnoreExpr()
Getter method for "ignore" tag attribute. (Mapping set in associated BeanInfo class.)


getRoleExpr

public java.lang.String getRoleExpr()
Getter method for "role" tag attribute. (Mapping set in associated BeanInfo class.)


setNameExpr

public void setNameExpr(java.lang.String nameExpr)
Setter method for "name" tag attribute. (Mapping set in associated BeanInfo class.)


setIgnoreExpr

public void setIgnoreExpr(java.lang.String ignoreExpr)
Setter method for "ignore" tag attribute. (Mapping set in associated BeanInfo class.)


setRoleExpr

public void setRoleExpr(java.lang.String roleExpr)
Setter method for "role" tag attribute. (Mapping set in associated BeanInfo class.)


release

public void release()
Resets attribute values for tag reuse.


doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException
Process the start tag.

Throws:
javax.servlet.jsp.JspException - if a JSP exception has occurred

evaluateExpressions

private void evaluateExpressions()
                          throws javax.servlet.jsp.JspException
Processes all attribute values which use the JSTL expression evaluation engine to determine their values.

Throws:
javax.servlet.jsp.JspException - if a JSP exception has occurred


Copyright ? 2000-2005 - The Apache Software Foundation