public class AttributeWildcardComputer extends ExpressionWalker
Since the definition of the attribute wildcard is very adhoc, it cannot be naturally caputred by our AGM.
Therefore, when we parse a schema, we just parse <anyAttribute> directly. After all components are loaded, arcane computation is done to correctly compute the attribute wildcard.
Attribute wildcard will be ultimately converted into an expression, and that
will be attached to the ComplexTypeExp.attWildcard
.
This class also computes the attribute propagation that happens only when a complex type is derived by restriction. Consider the following fragment:
According to the spec, the derived type will have the 'abc' attribute. By "propagation", we mean this behavior.
Modifier | Constructor and Description |
---|---|
protected |
AttributeWildcardComputer(XMLSchemaReader _reader) |
Modifier and Type | Method and Description |
---|---|
static void |
compute(XMLSchemaReader reader,
Expression topLevel) |
void |
onElement(ElementExp exp) |
void |
onRef(ReferenceExp exp) |
onAnyString, onAttribute, onBinExp, onChoice, onConcur, onData, onEpsilon, onInterleave, onList, onMixed, onNullSet, onOneOrMore, onOther, onSequence, onValue
protected AttributeWildcardComputer(XMLSchemaReader _reader)
public static void compute(XMLSchemaReader reader, Expression topLevel)
public void onElement(ElementExp exp)
onElement
in interface ExpressionVisitorVoid
onElement
in class ExpressionWalker
public void onRef(ReferenceExp exp)
onRef
in interface ExpressionVisitorVoid
onRef
in class ExpressionWalker
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