Package org.apache.taglibs.standard.tag.common.core

Class SetSupport

  • All Implemented Interfaces:
    Serializable, javax.servlet.jsp.tagext.BodyTag, javax.servlet.jsp.tagext.IterationTag, javax.servlet.jsp.tagext.JspTag, javax.servlet.jsp.tagext.Tag
    Direct Known Subclasses:
    SetTag, SetTag, SetTag
    public abstract class SetSupport
extends javax.servlet.jsp.tagext.BodyTagSupport

    Support for handlers of the <set> tag.

    Author:
    Shawn Bayern
    See Also:
    Serialized Form

    • Field Summary

      • Fields inherited from class javax.servlet.jsp.tagext.BodyTagSupport

        bodyContent

      • Fields inherited from class javax.servlet.jsp.tagext.TagSupport

        id, pageContext

      • Fields inherited from interface javax.servlet.jsp.tagext.BodyTag

        EVAL_BODY_BUFFERED, EVAL_BODY_TAG

      • 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

      Constructors 
      Modifier Constructor Description
      protected SetSupport()
      Constructs a new handler.

    • Constructor Detail

      • SetSupport

        protected SetSupport()
        Constructs a new handler. As with TagSupport, subclasses should not provide other constructors and are expected to call the superclass constructor.

    • Method Detail

      • release

        public void release()
        Specified by:
        release in interface javax.servlet.jsp.tagext.Tag
        Overrides:
        release in class javax.servlet.jsp.tagext.BodyTagSupport

      • doEndTag

        public int doEndTag()
             throws javax.servlet.jsp.JspException
        Specified by:
        doEndTag in interface javax.servlet.jsp.tagext.Tag
        Overrides:
        doEndTag in class javax.servlet.jsp.tagext.BodyTagSupport
        Throws:
        javax.servlet.jsp.JspException

      • isValueSpecified

        protected abstract boolean isValueSpecified()
        Indicates that the value attribute was specified. If no value attribute is supplied then the value is taken from the tag's body content.
        Returns:
        true if the value attribute was specified

      • evalValue

        protected abstract Object evalValue()
                             throws javax.servlet.jsp.JspException
        Evaluate the value attribute.
        Returns:
        the result of evaluating the value attribute
        Throws:
        javax.servlet.jsp.JspException - if there was a problem evaluating the expression

      • evalTarget

        protected abstract Object evalTarget()
                              throws javax.servlet.jsp.JspException
        Evaluate the target attribute.
        Returns:
        the result of evaluating the target attribute
        Throws:
        javax.servlet.jsp.JspException - if there was a problem evaluating the expression

      • evalProperty

        protected abstract String evalProperty()
                                throws javax.servlet.jsp.JspException
        Evaluate the property attribute.
        Returns:
        the result of evaluating the property attribute
        Throws:
        javax.servlet.jsp.JspException - if there was a problem evaluating the expression

      • getExpressionFactory

        protected javax.el.ExpressionFactory getExpressionFactory()

      • setVar

        public void setVar​(String var)
        Name of the exported scoped variable to hold the value specified in the action. The type of the scoped variable is whatever type the value expression evaluates to.
        Parameters:
        var - name of the exported scoped variable

      • setScope

        public void setScope​(String scope)
        Scope for var. Values are verified by TLV.
        Parameters:
        scope - the variable scope