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org.apache.batik.dom.svg
Class AbstractSVGList 
java.lang.Objectorg.apache.batik.dom.svg.AbstractSVGList
- Direct Known Subclasses:
- AbstractSVGLengthList, AbstractSVGNumberList, AbstractSVGPathSegList, AbstractSVGPointList, AbstractSVGTransformList
- public abstract class AbstractSVGList
- extends java.lang.Object
This class is a base implementation for a live list representation of SVG attributes. This classe provides support for a SVG List representation of an attribute. It implements the basic functionnalities. For a specific attribute, it requires a attribute value 55 , a parser 55 , and the item creation 55 Whenever the attribute changes outside of the control of the list, this list must be invalidated 55
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- Version:
- $Id: AbstractSVGList.java,v 1.7 2005/03/27 08:58:32 cam Exp $
| Nested Class Summary | |
protected class |
AbstractSVGList.ListBuilder
Local list handler implementation. |
| Field Summary | |
protected java.util.List |
itemList
List of item |
protected boolean |
valid
Whether this list is valid. |
| Constructor Summary | |
protected |
AbstractSVGList()
Creates a new AbstractSVGList. |
| Method Summary | |
protected SVGItem |
appendItemImpl(java.lang.Object newItem)
Inserts a new item at the end of the list. |
protected abstract void |
checkItemType(java.lang.Object newItem)
Check the type of the element added to the list. |
void |
clear()
Clears all existing current items from the list, with the result being an empty list. |
protected void |
clear(java.util.List list)
Clear the list and set the parent of the items to null. |
protected abstract org.w3c.dom.DOMException |
createDOMException(short type,
java.lang.String key,
java.lang.Object[] args)
Create a DOM Exception. |
protected abstract SVGItem |
createSVGItem(java.lang.Object newItem)
Return the item to be placed in the list. |
protected abstract void |
doParse(java.lang.String value,
ListHandler builder)
Parse the value of the attribute and build a list. |
protected SVGItem |
getItemImpl(int index)
Returns the specified item from the list. |
protected abstract java.lang.String |
getItemSeparator()
Return the separator for the item is the list. |
int |
getNumberOfItems()
Return the number of items in the list. |
protected abstract java.lang.String |
getValueAsString()
Return the String value associated
to the attribute in the DOM. |
protected SVGItem |
initializeImpl(java.lang.Object newItem)
Clears all existing current items from the list and re-initializes the list to hold the single item specified by the parameter. |
protected SVGItem |
insertItemBeforeImpl(java.lang.Object newItem,
int index)
Inserts a new item into the list at the specified position. |
void |
invalidate()
Invalidates this list. |
void |
itemChanged()
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protected SVGItem |
removeIfNeeded(java.lang.Object newItem)
If the itemis already in another list, then remove the item from its parent list. |
protected void |
removeItem(SVGItem item)
Remove an item from the list. |
protected SVGItem |
removeItemImpl(int index)
Removes an existing item from the list. |
protected SVGItem |
replaceItemImpl(java.lang.Object newItem,
int index)
Replaces an existing item in the list with a new item. |
protected void |
resetAttribute()
Resets the value of the associated attribute. |
protected void |
resetAttribute(SVGItem item)
Resets the value of the associated attribute. |
protected void |
revalidate()
Initializes the list, if needed. |
protected abstract void |
setAttributeValue(java.lang.String value)
Apply the changes of the list to the attribute this list represents. |
protected void |
setValueAsString(java.util.List value)
Set the attribute value in the DOM. |
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| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
valid
protected boolean valid
- Whether this list is valid.
itemList
protected java.util.List itemList
- List of item
| Constructor Detail |
AbstractSVGList
protected AbstractSVGList()
- Creates a new AbstractSVGList.
| Method Detail |
getItemSeparator
protected abstract java.lang.String getItemSeparator()
- Return the separator for the item is the list.
createSVGItem
protected abstract SVGItem createSVGItem(java.lang.Object newItem)
- Return the item to be placed in the list.
According to the parameter of the real SVGList
represented here by an
Objectthe implementation provide an item to be placed in the list.
doParse
protected abstract void doParse(java.lang.String value, ListHandler builder) throws org.apache.batik.parser.ParseException
- Parse the value of the attribute and build a list.
Use a dedicated parser for the attribute and the list
handler to build the list.
checkItemType
protected abstract void checkItemType(java.lang.Object newItem) throws org.w3c.dom.svg.SVGException
- Check the type of the element added to the list.
getValueAsString
protected abstract java.lang.String getValueAsString()
- Return the
Stringvalue associated to the attribute in the DOM.
setAttributeValue
protected abstract void setAttributeValue(java.lang.String value)
- Apply the changes of the list to the
attribute this list represents.
createDOMException
protected abstract org.w3c.dom.DOMException createDOMException(short type, java.lang.String key, java.lang.Object[] args)
- Create a DOM Exception.
getNumberOfItems
public int getNumberOfItems()
- Return the number of items in the list.
clear
public void clear()
throws org.w3c.dom.DOMException
- Clears all existing current items from
the list, with the result being an empty
list.
initializeImpl
protected SVGItem initializeImpl(java.lang.Object newItem) throws org.w3c.dom.DOMException, org.w3c.dom.svg.SVGException
- Clears all existing current items from
the list and re-initializes the list to
hold the single item specified by the
parameter.
getItemImpl
protected SVGItem getItemImpl(int index) throws org.w3c.dom.DOMException
- Returns the specified item from the list.
insertItemBeforeImpl
protected SVGItem insertItemBeforeImpl(java.lang.Object newItem, int index) throws org.w3c.dom.DOMException, org.w3c.dom.svg.SVGException
- Inserts a new item into the list at
the specified position.
The first item is number 0. If newItem
is already in a list, it is removed from
its previous list before it is inserted into
this list.
replaceItemImpl
protected SVGItem replaceItemImpl(java.lang.Object newItem, int index) throws org.w3c.dom.DOMException, org.w3c.dom.svg.SVGException
- Replaces an existing item in the list with a
new item.
If newItem is already in a list, it is removed
from its previous list before it is inserted
into this list.
removeItemImpl
protected SVGItem removeItemImpl(int index) throws org.w3c.dom.DOMException
- Removes an existing item from the list.
appendItemImpl
protected SVGItem appendItemImpl(java.lang.Object newItem) throws org.w3c.dom.DOMException, org.w3c.dom.svg.SVGException
- Inserts a new item at the end of the list.
If newItem is already in a list, it is removed from
its previous list before it is inserted into this list.
removeIfNeeded
protected SVGItem removeIfNeeded(java.lang.Object newItem)
- If the itemis already in another list,
then remove the item from its parent list.
If not, create a proper item for the
object representing the type of item
the list contains
checkItemItem was preformed previously.
revalidate
protected void revalidate()
- Initializes the list, if needed.
setValueAsString
protected void setValueAsString(java.util.List value) throws org.w3c.dom.DOMException
- Set the attribute value in the DOM.
itemChanged
public void itemChanged()
resetAttribute
protected void resetAttribute()
- Resets the value of the associated attribute.
resetAttribute
protected void resetAttribute(SVGItem item)
- Resets the value of the associated attribute.
invalidate
public void invalidate()
- Invalidates this list.
removeItem
protected void removeItem(SVGItem item)
- Remove an item from the list.
This operation takes place when an
item was already in one list and
is being added to another one.
clear
protected void clear(java.util.List list)
- Clear the list and set the parent
of the items to null.
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