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

Class OutSupport

java.lang.Object

javax.servlet.jsp.tagext.TagSupport

javax.servlet.jsp.tagext.BodyTagSupport

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

All Implemented Interfaces:

Serializable, BodyTag, IterationTag, JspTag, Tag

Direct Known Subclasses:

OutTag, OutTag

public class OutSupport
extends BodyTagSupport

Support for handlers of the <out> tag, which simply evalutes and prints the result of the expression it's passed. If the result is null, we print the value of the 'default' attribute's expression or our body (which two are mutually exclusive, although this constraint is enforced outside this handler, in our TagLibraryValidator).

Author:

Shawn Bayern

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected String	def
protected boolean	escapeXml
protected Object	value

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

Constructor and Description
OutSupport() Constructs a new handler.

Method Summary

Methods

Modifier and Type	Method and Description
int	doEndTag() Default processing of the end tag returning EVAL_PAGE.
int	doStartTag() Default processing of the start tag returning EVAL_BODY_BUFFERED.
static void	out(PageContext pageContext, boolean escapeXml, Object obj) Outputs text to pageContext's current JspWriter.
void	release() Release state.

Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport

doAfterBody, doInitBody, getBodyContent, getPreviousOut, setBodyContent

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

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

Methods inherited from interface javax.servlet.jsp.tagext.Tag

getParent, setPageContext, setParent

Field Detail

value

protected Object value

def

protected String def

escapeXml

protected boolean escapeXml

Constructor Detail

OutSupport

public OutSupport()

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()

Description copied from class: BodyTagSupport

Release state.

Specified by:

release in interface Tag

Overrides:

release in class BodyTagSupport

See Also:

Tag.release()

doStartTag

public int doStartTag()
               throws JspException

Description copied from class: BodyTagSupport

Default processing of the start tag returning EVAL_BODY_BUFFERED.

Specified by:

doStartTag in interface Tag

Overrides:

doStartTag in class BodyTagSupport

Returns:

EVAL_BODY_BUFFERED

Throws:

JspException - if an error occurred while processing this tag

See Also:

Tag.doStartTag()

doEndTag

public int doEndTag()
             throws JspException

Description copied from class: BodyTagSupport

Default processing of the end tag returning EVAL_PAGE.

Specified by:

doEndTag in interface Tag

Overrides:

doEndTag in class BodyTagSupport

Returns:

EVAL_PAGE

Throws:

JspException - if an error occurred while processing this tag

See Also:

Tag.doEndTag()

out

public static void out(PageContext pageContext,
       boolean escapeXml,
       Object obj)
                throws IOException

Outputs text to pageContext's current JspWriter. If escapeXml is true, performs the following substring replacements (to facilitate output to XML/HTML pages): & -> & < -> < > -> > " -> " ' -> ' See also Util.escapeXml().

Throws:

IOException