org.apache.xerces.impl.dtd.models
public class DFAContentModel extends Object implements ContentModelValidator
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.
Version: $Id: DFAContentModel.java,v 1.7 2004/10/04 22:00:42 mrglavas Exp $
UNKNOWN:
Constructor Summary | |
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DFAContentModel(CMNode syntaxTree, int leafCount, boolean mixed)
Constructs a DFA content model.
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Method Summary | |
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int | validate(QName[] children, int offset, int length)
Check that the specified content is valid according to this
content model. |
Parameters: syntaxTree The syntax tree of the content model. leafCount The number of leaves. mixed
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.
Parameters: 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.
Returns: The value -1 if fully valid, else the 0 based index of the child that first failed. If the value returned is equal to the number of children, then the specified children are valid but additional content is required to reach a valid ending state.