org.xmlecho.palomar.core
Class ECHOContextImpl

java.lang.Object
  org.xmlecho.palomar.dom.NodeBase
      org.xmlecho.palomar.dom.ParentNode
          org.xmlecho.palomar.dom.NamespacedNode
              org.xmlecho.palomar.dom.ElementNode
                  org.xmlecho.palomar.core.DOMElementImpl
                      org.xmlecho.palomar.core.ECHORequestImpl
                          org.xmlecho.palomar.core.ECHORequestServerSide
                              org.xmlecho.palomar.core.NullTransformImpl
                                  org.xmlecho.palomar.core.ECHOContextImpl

All Implemented Interfaces:

ECHOContext, ECHORequest, org.w3c.dom.Element, org.xmlecho.palomar.dom.ElementEx, org.w3c.dom.Node, org.xmlecho.palomar.dom.NodeEx, org.w3c.dom.NodeList, org.xmlecho.palomar.dom.XmlWritable

public class ECHOContextImpl

extends NullTransformImpl

implements ECHOContext

Provides context information for the evaluation of XML ECHO commands. ECHOContext objects provide the ECHO processor the ability to pass parameters to the "eval()" method of nested ECHORequest command implementations. ECHOContext objects may contain a handle to a "parent" Context. If the requested key is not found in the requested context, it will attempt to find it in the parent context

Field Summary

Fields inherited from class org.xmlecho.palomar.core.ECHORequestServerSide

_logger, _sec, DEBUG

Fields inherited from class org.xmlecho.palomar.dom.ElementNode

_namespaceURI, name

Fields inherited from interface org.w3c.dom.Node

ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE

Constructor Summary

ECHOContextImpl()
constructor with no arguments, a top-level context

ECHOContextImpl(ECHOContext parent)
constructor with a parent context.

Method Summary

void	doneParse() throw the params into our internal dictionary by key
ECHOContext	extend()
java.lang.Object	get(java.lang.String key)
static java.lang.Object	getParamBindingValue(org.w3c.dom.Element e, ECHOContext context)
java.lang.Object	getRaw(java.lang.String key)
static java.lang.String	parseAttributeExpr(java.lang.String val, ECHOContext ctx)
void	put(java.lang.String key, java.lang.Object value) stores the value in the local context
void	putDefault(java.lang.String key, java.lang.Object value) stores the default value in the local context
java.lang.Object	remove(java.lang.String key) removes an object from the context.
void	sendStackTrace(org.xml.sax.ContentHandler target) Provides an XML representation of all the bindings in the context, including all the ancestor contexts
void	setParentContext(ECHOContext parent) for delegating lookups

Methods inherited from class org.xmlecho.palomar.core.NullTransformImpl

eval

Methods inherited from class org.xmlecho.palomar.core.ECHORequestServerSide

addAttribute, endElement, errorResponse, evalBody, evalCopy, extendContext, getItem, getNamespacePrefix, getSecurityService, getSubRequest, getUser, log, startElement, startElement, writeException, writeException

Methods inherited from class org.xmlecho.palomar.core.ECHORequestImpl

eval, getURI

Methods inherited from class org.xmlecho.palomar.dom.ElementNode

appendChild, cloneNode, getAppSelectVal, getAttribute, getAttributeNode, getAttributeNodeNS, getAttributeNS, getAttributes, getChildNodes, getElementsByTagName, getElementsByTagNameNS, getFirstChild, getIdAttributeName, getIndexOf, getInheritedAttribute, getLanguage, getLastChild, getLength, getLocalName, getLocation, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTagName, getUserObject, hasAttribute, hasAttributeNS, hasAttributes, hasChildNodes, insertBefore, isReadonly, isSupported, item, normalize, removeAttribute, removeAttributeNode, removeAttributeNS, removeChild, removeWhiteSpaces, replaceChild, setAppSelectVal, setAttribute, setAttributeNode, setAttributeNodeNS, setAttributeNS, setIdAttributeName, setLocation, setNamespaceURI, setNodeValue, setPrefix, setReadonly, setTag, setUserObject, supports, toString, trimToSize, write, writeChildrenXml, writeXml

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.w3c.dom.Element

getAttribute, getAttributeNode, getAttributeNodeNS, getAttributeNS, getElementsByTagName, getElementsByTagNameNS, getTagName, hasAttribute, hasAttributeNS, removeAttribute, removeAttributeNode, removeAttributeNS, setAttribute, setAttributeNode, setAttributeNodeNS, setAttributeNS

Methods inherited from interface org.w3c.dom.Node

appendChild, cloneNode, getAttributes, getChildNodes, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, hasAttributes, hasChildNodes, insertBefore, isSupported, normalize, removeChild, replaceChild, setNodeValue, setPrefix

Methods inherited from interface org.xmlecho.palomar.dom.NodeEx

getAppSelectVal, getIndexOf, getInheritedAttribute, getLanguage, isReadonly, setAppSelectVal

Methods inherited from interface org.xmlecho.palomar.dom.XmlWritable

writeChildrenXml

Constructor Detail

ECHOContextImpl

public ECHOContextImpl()

constructor with no arguments, a top-level context

ECHOContextImpl

public ECHOContextImpl(ECHOContext parent)

constructor with a parent context.

Method Detail

extend

public ECHOContext extend()

Specified by:

extend in interface ECHOContext

get

public java.lang.Object get(java.lang.String key)

Specified by:

get in interface ECHOContext

Parameters:

key - the name of the requested value

Returns:

the value identified by key if the object is of type String, performs an expression evaluation of the string and returns the result of evaluation

parseAttributeExpr

public static java.lang.String parseAttributeExpr(java.lang.String val,
                                                  ECHOContext ctx)

getRaw

public java.lang.Object getRaw(java.lang.String key)

Parameters:

key - the name of the requested value

Returns:

the value identified by key if the object is of type String, performs an expression evaluation of the string and returns the result of evaluation

sendStackTrace

public void sendStackTrace(org.xml.sax.ContentHandler target)
                    throws org.xml.sax.SAXException

Provides an XML representation of all the bindings in the context, including all the ancestor contexts

Specified by:

sendStackTrace in interface ECHOContext

Throws:

org.xml.sax.SAXException

put

public void put(java.lang.String key,
                java.lang.Object value)

stores the value in the local context

Specified by:

put in interface ECHOContext

remove

public java.lang.Object remove(java.lang.String key)

removes an object from the context.

Specified by:

remove in interface ECHOContext

putDefault

public void putDefault(java.lang.String key,
                       java.lang.Object value)

stores the default value in the local context

setParentContext

public void setParentContext(ECHOContext parent)

for delegating lookups

Specified by:

setParentContext in interface ECHOContext

doneParse

public void doneParse()

throw the params into our internal dictionary by key

getParamBindingValue

public static java.lang.Object getParamBindingValue(org.w3c.dom.Element e,
                                                    ECHOContext context)