org.mmbase.bridge.jsp.taglib
Class NodeReferrerTag

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

All Implemented Interfaces:

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

Direct Known Subclasses:

AbstractFunctionTag, AbstractNodeProviderTag, CountRelationsTag, CreateAliasTag, FieldReferrerTag, GetInfoTag, HasRelationsTag, ListNodesContainerTag, ListRelationsContainerTag, MayWriteTag, NodeInfoTag, RelatedContainerTag, SetContextTag, SetInfoTag, StringListTag, TreeReferrerTag

public abstract class NodeReferrerTag

extends CloudReferrerTag

A tag which is a 'NodeReferrerTag's can be the child of a NodeProvider tag, which supplies a 'Node' to its child tags. For example the FieldTag, needs the use the Node of the parent NodeProviderTag and therefore would be a NodeReferrerTag.

Version:

$Id: NodeReferrerTag.java,v 1.15 2003/09/08 12:05:13 michiel Exp $

Author:

Michiel Meeuwissen

See Also:

Serialized Form

Field Summary

protected Attribute

parentNodeId

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

contextId, EVAL_BODY, helper, id, pageContextTag, referid, writerid

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

bodyContent

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

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

NodeReferrerTag()

Method Summary

NodeProvider	findNodeProvider() This method tries to find an ancestor object of type NodeProvider
NodeProvider	findNodeProvider(boolean throwexception) This method tries to find an ancestor object of type NodeProvider
protected Node	getNode() Gets the Node variable from the parent NodeProvider.
void	setNode(java.lang.String node) A NodeReferrer probably wants to supply the attribute 'node', to make it possible to refer to another node than the direct ancestor.

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

fillStandardParameters, findCloudProvider, findCloudProvider, getCloud, getCloudContext, getCloudVar, getNode, getNodeOrNull, setCloud

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

doEndTag, findParentTag, findParentTag, findParentTag, findParentTag, findWriter, findWriter, getAttribute, getAttributeBoolean, getAttributeInteger, getAttributeInteger, getAttributeValue, getContentTag, getContextProvider, getContextTag, getId, getLocale, getObject, getPageContext, getReferid, getString, getWriterValue, haveBody, release, setContext, setEscape, setId, setJspvar, setPageContext, setReferid, setVartype, setWrite, setWriter

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

doAfterBody, doInitBody, doStartTag, getBodyContent, getPreviousOut, setBodyContent

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

findAncestorWithClass, getParent, getValue, getValues, removeValue, 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, setParent

Field Detail

parentNodeId

protected Attribute parentNodeId

Constructor Detail

NodeReferrerTag

public NodeReferrerTag()

Method Detail

setNode

public void setNode(java.lang.String node)
             throws javax.servlet.jsp.JspTagException

A NodeReferrer probably wants to supply the attribute 'node', to make it possible to refer to another node than the direct ancestor.

Throws:

javax.servlet.jsp.JspTagException

findNodeProvider

public NodeProvider findNodeProvider()
                              throws javax.servlet.jsp.JspTagException

This method tries to find an ancestor object of type NodeProvider

Returns:

the NodeProvider if found else an exception.

Throws:

javax.servlet.jsp.JspTagException

findNodeProvider

public NodeProvider findNodeProvider(boolean throwexception)
                              throws javax.servlet.jsp.JspTagException

This method tries to find an ancestor object of type NodeProvider

Returns:

the NodeProvider or null.

Throws:

javax.servlet.jsp.JspTagException

getNode

protected Node getNode()
                throws javax.servlet.jsp.JspTagException

Gets the Node variable from the parent NodeProvider.

Returns:

a org.mmbase.bridge.Node

Throws:

javax.servlet.jsp.JspTagException