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BEA Systems, Inc. | ||||||||||
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java.lang.Object | +--weblogic.apache.xerces.validators.common.DFAContentModel
DFAContentModel is the derivative of ContentModel that does all of the non-trivial element content validation. This class does the conversion from the regular expression to the DFA that it then uses in its validation algorithm.
Note: Upstream work insures that this class will never see a content model with PCDATA in it. Any model with PCDATA is 'mixed' and is handled via the MixedContentModel class since mixed models are very constrained in form and easily handled via a special case. This also makes implementation of this class much easier.
This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.
| Constructor Summary | |
DFAContentModel(CMNode syntaxTree,
int leafCount)
Constructs a DFA content model. |
|
DFAContentModel(CMNode syntaxTree,
int leafCount,
boolean dtd)
Constructs a DFA content model. |
|
| Method Summary | |
boolean |
checkLastChildEndingState()
|
ContentLeafNameTypeVector |
getContentLeafNameTypeVector()
|
void |
setEquivClassComparator(EquivClassComparator comparator)
|
int |
validateContent(QName[] children,
int offset,
int length)
Check that the specified content is valid according to this content model. |
int |
validateContent(QName[] children,
int offset,
int length,
boolean parentCheck,
int depth)
|
int |
validateContentSpecial(QName[] children,
int offset,
int length)
|
int |
whatCanGoHere(boolean fullyValid,
InsertableElementsInfo info)
Returns information about which elements can be placed at a particular point in the passed element's content model. |
| Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
| Constructor Detail |
public DFAContentModel(CMNode syntaxTree,
int leafCount)
throws CMException
stringPool - The string pool.syntaxTree - The syntax tree of the content model.leafCount - The number of leaves.
public DFAContentModel(CMNode syntaxTree,
int leafCount,
boolean dtd)
throws CMException
stringPool - The string pool.syntaxTree - The syntax tree of the content model.leafCount - The number of leaves.| Method Detail |
public int validateContent(QName[] children,
int offset,
int length)
throws CMException
A value of -1 in the children array indicates a PCDATA node. All other indexes will be positive and represent child elements. The count can be zero, since some elements have the EMPTY content model and that must be confirmed.
children - The children of this element. Each integer is an index within
the StringPool of the child element name. An index
of -1 is used to indicate an occurrence of non-whitespace character
data.offset - Offset into the array where the children starts.length - The number of entries in the children array.
public int validateContent(QName[] children,
int offset,
int length,
boolean parentCheck,
int depth)
throws CMException
public boolean checkLastChildEndingState()
public int validateContentSpecial(QName[] children,
int offset,
int length)
throws java.lang.Exception
public void setEquivClassComparator(EquivClassComparator comparator)
public int whatCanGoHere(boolean fullyValid,
InsertableElementsInfo info)
throws CMException
Note that the incoming content model to test must be valid at least up to the insertion point. If not, then -1 will be returned and the info object will not have been filled in.
If, on return, the info.isValidEOC flag is set, then the 'insert after' element is a valid end of content. In other words, nothing needs to be inserted after it to make the parent element's content model valid.
fullyValid - Only return elements that can be inserted and still
maintain the validity of subsequent elements past the
insertion point (if any). If the insertion point is at
the end, and this is true, then only elements that can
be legal final states will be returned.info - An object that contains the required input data for the method,
and which will contain the output information if successful.InsertableElementsInfopublic ContentLeafNameTypeVector getContentLeafNameTypeVector()
|
Documentation is available at http://download.oracle.com/docs/cd/E13222_01/wls/docs60 |
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