org.mmbase.bridge.jsp.taglib
Class FieldTag

java.lang.Object
  |
  +--javax.servlet.jsp.tagext.TagSupport
        |
        +--javax.servlet.jsp.tagext.BodyTagSupport
              |
              +--org.mmbase.bridge.jsp.taglib.ContextReferrerTag
                    |
                    +--org.mmbase.bridge.jsp.taglib.CloudReferrerTag
                          |
                          +--org.mmbase.bridge.jsp.taglib.NodeReferrerTag
                                |
                                +--org.mmbase.bridge.jsp.taglib.FieldReferrerTag
                                      |
                                      +--org.mmbase.bridge.jsp.taglib.FieldTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.BodyTag, FieldProvider, javax.servlet.jsp.tagext.IterationTag, java.io.Serializable, javax.servlet.jsp.tagext.Tag, TagIdentifier, Writer

Direct Known Subclasses:

ImageTag, NodeFieldTag, SetFieldTag

public class FieldTag

extends FieldReferrerTag

implements FieldProvider, Writer

The FieldTag can be used as a child of a 'NodeProvider' tag.

Author:

Michiel Meeuwissen

See Also:

Serialized Form

Field Summary

protected Field	field
protected java.lang.String	fieldName
protected WriterHelper	helper
protected java.lang.String	name
protected Node	node
protected NodeProvider	nodeProvider

Fields inherited from class org.mmbase.bridge.jsp.taglib.ContextReferrerTag

contextId, PAGE_CATEGORY, pageContextTag, referid, writerid

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

FieldTag()

Method Summary

protected java.lang.String	convert(java.lang.String s) Does something with the generated output.
int	doAfterBody()
int	doEndTag() write the value of the field.
int	doStartTag()
Field	getFieldVar()
Node	getNodeVar() A fieldprovider also provides a node.
java.lang.Object	getWriterValue() Subtags of 'Writer' tag can request the value.
void	haveBody() To be used by child tags.
protected void	setFieldVar()
protected void	setFieldVar(java.lang.String n)
void	setJspvar(java.lang.String j) JspVar to Create, and write to
void	setModified()
void	setName(java.lang.String n)
void	setVartype(java.lang.String t) Type of the jspvar.
void	setWrite(java.lang.String w) Wether to write to page or not.

Methods inherited from class org.mmbase.bridge.jsp.taglib.FieldReferrerTag

findFieldProvider, getField, setField

Methods inherited from class org.mmbase.bridge.jsp.taglib.NodeReferrerTag

findNodeProvider, findNodeProvider, getNode, setNode

Methods inherited from class org.mmbase.bridge.jsp.taglib.CloudReferrerTag

findCloudProvider, findCloudProvider, getCloud, getCloudContext, getNode, getNodeOrNull, setCloud

Methods inherited from class org.mmbase.bridge.jsp.taglib.ContextReferrerTag

findParentTag, findParentTag, findWriter, findWriter, getAttributeBoolean, getAttributeInteger, getAttributeInteger, getAttributeValue, getContextTag, getObject, getReferid, getString, release, setContext, setPageContext, setReferid, setWriter

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

doInitBody, getBodyContent, getPreviousOut, setBodyContent

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

findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setParent, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.mmbase.bridge.jsp.taglib.TagIdentifier

getId

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

getParent, setParent

Field Detail

helper

protected WriterHelper helper

node

protected Node node

nodeProvider

protected NodeProvider nodeProvider

field

protected Field field

fieldName

protected java.lang.String fieldName

name

protected java.lang.String name

Constructor Detail

FieldTag

public FieldTag()

Method Detail

setVartype

public void setVartype(java.lang.String t)
                throws javax.servlet.jsp.JspTagException

Description copied from interface: Writer

Type of the jspvar.

Specified by:

setVartype in interface Writer

setJspvar

public void setJspvar(java.lang.String j)

Description copied from interface: Writer

JspVar to Create, and write to

Specified by:

setJspvar in interface Writer

setWrite

public void setWrite(java.lang.String w)
              throws javax.servlet.jsp.JspTagException

Description copied from interface: Writer

Wether to write to page or not. This has to default to 'false' if the tag has a body, and to 'true' if it hasn't.

Specified by:

setWrite in interface Writer

getWriterValue

public java.lang.Object getWriterValue()

Description copied from interface: Writer

Subtags of 'Writer' tag can request the value.

Specified by:

getWriterValue in interface Writer

haveBody

public void haveBody()

Description copied from interface: Writer

To be used by child tags. If they are present, they say to the writer tag that it has body, which it can use to determine a default for the write property.

Specified by:

haveBody in interface Writer

setName

public void setName(java.lang.String n)
             throws javax.servlet.jsp.JspTagException

getNodeVar

public Node getNodeVar()
                throws javax.servlet.jsp.JspTagException

A fieldprovider also provides a node.

Specified by:

getNodeVar in interface FieldProvider

setModified

public void setModified()

Specified by:

setModified in interface FieldProvider

getFieldVar

public Field getFieldVar()

Specified by:

getFieldVar in interface FieldProvider

Following copied from interface: org.mmbase.bridge.jsp.taglib.FieldProvider

Returns:

the field contained in the tag

setFieldVar

protected void setFieldVar(java.lang.String n)
                    throws javax.servlet.jsp.JspTagException

setFieldVar

protected void setFieldVar()
                    throws javax.servlet.jsp.JspTagException

convert

protected java.lang.String convert(java.lang.String s)
                            throws javax.servlet.jsp.JspTagException

Does something with the generated output. This default implementation does nothing, but extending classes could override this function.

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspTagException

Overrides:

doStartTag in class javax.servlet.jsp.tagext.BodyTagSupport

doAfterBody

public int doAfterBody()
                throws javax.servlet.jsp.JspException

Overrides:

doAfterBody in class javax.servlet.jsp.tagext.BodyTagSupport

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspTagException

write the value of the field.

Overrides:

doEndTag in class javax.servlet.jsp.tagext.BodyTagSupport