org.apache.ecs
Class ConcreteElement

java.lang.Object
  org.apache.ecs.GenericElement
      org.apache.ecs.ElementAttributes
          org.apache.ecs.ConcreteElement

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Attributes, Element, ElementRegistry

Direct Known Subclasses:

ElementContainer, MultiPartElement, PI, RTFElement, SinglePartElement, StringElement

public class ConcreteElement
extends ElementAttributes
implements java.lang.Cloneable

This class is to be subclassed by those elements that are made up of other elements. i.e. BODY,HEAD,etc.

Version:

$Id: ConcreteElement.java,v 1.31 2003/05/13 12:23:18 rdonkin Exp $

Author:

Stephan Nagy, Jon S. Stevens

See Also:

Serialized Form

Field Summary

private static java.lang.String	lineSeparator The line separator to use for pretty printing
private java.util.Hashtable	registry
private java.util.Vector	registryList Maintain an ordered list of elements

Fields inherited from class org.apache.ecs.GenericElement

tabLevel

Fields inherited from interface org.apache.ecs.Attributes

NO_ATTRIBUTE_VALUE

Fields inherited from interface org.apache.ecs.Element

CENTER, LEFT, LOWERCASE, MIXEDCASE, RIGHT, UPPERCASE

Constructor Summary

ConcreteElement()

Method Summary

Element	addElementToRegistry(Element element) Registers an element in the head element list
Element	addElementToRegistry(Element element, boolean filter) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String value) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String value, boolean filter) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String hashcode, Element element) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String hashcode, Element element, boolean filter) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String hashcode, java.lang.String value) Registers an element in the head element list
Element	addElementToRegistry(java.lang.String hashcode, java.lang.String value, boolean filter) Registers an element in the head element list
java.lang.Object	clone() Allows all Elements the ability to be cloned.
java.util.Enumeration	elements() Get an enumeration of the elements that this element contains.
ConcreteElement	getElement(java.lang.String element) If the object is in the registry return otherwise return null.
boolean	isEmpty()
java.util.Enumeration	keys() Get the keys of this element.
void	output(java.io.OutputStream out) Override output(OutputStream) incase any elements are in the registry.
static void	output(java.io.OutputStream out, ConcreteElement ce) Overload output(OutputStream).
void	output(java.io.PrintWriter out) Override output(BufferedWriter) incase any elements are in the registry.
void	output(java.io.Writer out) Writer version of this method.
boolean	registryHasElement(Element element) Find out if this element is in the element registry.
boolean	registryHasElement(java.lang.String hashcode) Find out if this element is in the element registry.
Element	removeElementFromRegistry(Element element) Removes an element from the element registry
Element	removeElementFromRegistry(java.lang.String hashcode) Removes an element from the head element registry

Methods inherited from class org.apache.ecs.ElementAttributes

addAttribute, addAttribute, addAttribute, addAttribute, attributes, createStartTag, getAttribute, getAttributeEqualitySign, getAttributeFilter, getAttributeFilterState, getAttributeQuote, getAttributeQuoteChar, hasAttribute, removeAttribute, setAttributeEqualitySign, setAttributeFilter, setAttributeFilterState, setAttributeQuote, setAttributeQuoteChar, setClass, setDir, setID, setLang, setStyle, setTitle

Methods inherited from class org.apache.ecs.GenericElement

alterCase, createEndTag, getBeginEndModifier, getBeginEndModifierDefined, getBeginStartModifier, getBeginStartModifierDefined, getCase, getCodeSet, getElementHashEntry, getElementType, getEndEndModifier, getEndEndModifierDefined, getEndStartModifier, getEndStartModifierDefined, getEndTagChar, getFilter, getFilterState, getNeedClosingTag, getNeedLineBreak, getPrettyPrint, getStartTagChar, getTabLevel, getTagPosition, getTagText, getVersion, putTabs, putTabs, removeBeginEndModifier, removeBeginStartModifier, removeEndEndModifier, removeEndStartModifier, setBeginEndModifier, setBeginModifier, setBeginModifier, setBeginStartModifier, setCase, setCodeSet, setElementType, setEndEndModifier, setEndModifier, setEndModifier, setEndStartModifier, setEndTagChar, setFilter, setFilterState, setNeedClosingTag, setPrettyPrint, setStartTagChar, setTabLevel, setTagPosition, setTagText, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

lineSeparator

private static java.lang.String lineSeparator

The line separator to use for pretty printing

registry

private java.util.Hashtable registry

registryList

private java.util.Vector registryList

Maintain an ordered list of elements

Constructor Detail

ConcreteElement

public ConcreteElement()

Method Detail

getElement

public ConcreteElement getElement(java.lang.String element)

If the object is in the registry return otherwise return null.

Parameters:

element - the name of the object to locate.

addElementToRegistry

public Element addElementToRegistry(Element element)

Registers an element in the head element list

Specified by:

addElementToRegistry in interface ElementRegistry

Parameters:

element - element to be added to the registry.

addElementToRegistry

public Element addElementToRegistry(java.lang.String hashcode,
                                    Element element)

Registers an element in the head element list

Parameters:

hashcode - internal name of element

element - element to be added to the registry.

addElementToRegistry

public Element addElementToRegistry(Element element,
                                    boolean filter)

Registers an element in the head element list

Parameters:

element - element to be added to the registry.

filter - does this need to be filtered?

addElementToRegistry

public Element addElementToRegistry(java.lang.String hashcode,
                                    Element element,
                                    boolean filter)

Registers an element in the head element list

Parameters:

element - element to be added to the registry.

filter - should we filter this element?

addElementToRegistry

public Element addElementToRegistry(java.lang.String value,
                                    boolean filter)

Registers an element in the head element list

Parameters:

element - element to be added to the registry.

filter - does this need to be filtered?

addElementToRegistry

public Element addElementToRegistry(java.lang.String hashcode,
                                    java.lang.String value,
                                    boolean filter)

Registers an element in the head element list

Parameters:

element - element to be added to the registry.

filter - does this need to be filtered?

addElementToRegistry

public Element addElementToRegistry(java.lang.String value)

Registers an element in the head element list

Specified by:

addElementToRegistry in interface ElementRegistry

Parameters:

element - element to be added to the registry.

addElementToRegistry

public Element addElementToRegistry(java.lang.String hashcode,
                                    java.lang.String value)

Registers an element in the head element list

Parameters:

element - element to be added to the registry.

removeElementFromRegistry

public Element removeElementFromRegistry(Element element)

Removes an element from the element registry

Specified by:

removeElementFromRegistry in interface ElementRegistry

Parameters:

element - element to be added to the registry.

removeElementFromRegistry

public Element removeElementFromRegistry(java.lang.String hashcode)

Removes an element from the head element registry

Specified by:

removeElementFromRegistry in interface ElementRegistry

Parameters:

hashcode - element to be added to the registry.

registryHasElement

public boolean registryHasElement(Element element)

Find out if this element is in the element registry.

Specified by:

registryHasElement in interface ElementRegistry

Parameters:

element - find out if this element is in the registry

keys

public java.util.Enumeration keys()

Get the keys of this element.

elements

public java.util.Enumeration elements()

Get an enumeration of the elements that this element contains.

registryHasElement

public boolean registryHasElement(java.lang.String hashcode)

Find out if this element is in the element registry.

Specified by:

registryHasElement in interface ElementRegistry

Parameters:

element - find out if this element is in the registry

output

public static void output(java.io.OutputStream out,
                          ConcreteElement ce)

Overload output(OutputStream).

Parameters:

output - OutputStream to write to.

ConcreteElement - Instance of ConcreteElement

output

public void output(java.io.OutputStream out)

Override output(OutputStream) incase any elements are in the registry.

Specified by:

output in interface Element

Overrides:

output in class GenericElement

Parameters:

output - OutputStream to write to.

output

public void output(java.io.Writer out)

Writer version of this method.

Overrides:

output in class GenericElement

output

public void output(java.io.PrintWriter out)

Override output(BufferedWriter) incase any elements are in the registry.

Specified by:

output in interface Element

Overrides:

output in class GenericElement

Parameters:

output - OutputStream to write to.

clone

public java.lang.Object clone()

Allows all Elements the ability to be cloned.

Overrides:

clone in class java.lang.Object

isEmpty

public boolean isEmpty()