XSDElementTraverserpublic class XSDElementTraverser extends XSDAbstractTraverser | The element declaration schema component traverser.
Content: (annotation?, ((simpleType | complexType)?, (unique | key | keyref)*))
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| Fields Summary |
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| protected final org.apache.xerces.impl.xs.XSElementDecl | fTempElementDecl | | boolean | fDeferTraversingLocalElements |
| Methods Summary |
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| void | reset(org.apache.xerces.util.SymbolTable symbolTable, boolean validateAnnotations)
super.reset(symbolTable, validateAnnotations);
fDeferTraversingLocalElements = true;
| | org.apache.xerces.impl.xs.XSElementDecl | traverseGlobal(org.w3c.dom.Element elmDecl, XSDocumentInfo schemaDoc, org.apache.xerces.impl.xs.SchemaGrammar grammar)Traverse a globally declared element.
// General Attribute Checking'
Object[] attrValues = fAttrChecker.checkAttributes(elmDecl, true, schemaDoc);
XSElementDecl element = traverseNamedElement(elmDecl, attrValues, schemaDoc, grammar, true, null);
fAttrChecker.returnAttrArray(attrValues, schemaDoc);
return element;
| | org.apache.xerces.impl.xs.XSParticleDecl | traverseLocal(org.w3c.dom.Element elmDecl, XSDocumentInfo schemaDoc, org.apache.xerces.impl.xs.SchemaGrammar grammar, int allContextFlags, org.apache.xerces.xs.XSObject parent)Traverse a locally declared element (or an element reference).
To handle the recursive cases efficiently, we delay the traversal
and return an empty particle node. We'll fill in this particle node
later after we've done with all the global declarations.
This method causes a number of data structures in the schema handler to be filled in.
XSParticleDecl particle = null;
if (fSchemaHandler.fDeclPool !=null) {
particle = fSchemaHandler.fDeclPool.getParticleDecl();
} else {
particle = new XSParticleDecl();
}
if (fDeferTraversingLocalElements) {
// The only thing we care about now is whether this element has
// minOccurs=0. This affects (if the element appears in a complex
// type) whether a type has emptiable content.
particle.fType = XSParticleDecl.PARTICLE_ELEMENT;
Attr attr = elmDecl.getAttributeNode(SchemaSymbols.ATT_MINOCCURS);
if (attr != null) {
String min = attr.getValue();
try {
int m = Integer.parseInt(XMLChar.trim(min));
if (m >= 0)
particle.fMinOccurs = m;
}
catch (NumberFormatException ex) {
}
}
fSchemaHandler.fillInLocalElemInfo(elmDecl, schemaDoc, allContextFlags, parent, particle);
} else {
traverseLocal(particle, elmDecl, schemaDoc, grammar, allContextFlags, parent, null);
// If it's an empty particle, return null.
if (particle.fType == XSParticleDecl.PARTICLE_EMPTY)
particle = null;
}
return particle;
| | protected void | traverseLocal(org.apache.xerces.impl.xs.XSParticleDecl particle, org.w3c.dom.Element elmDecl, XSDocumentInfo schemaDoc, org.apache.xerces.impl.xs.SchemaGrammar grammar, int allContextFlags, org.apache.xerces.xs.XSObject parent, java.lang.String[] localNSDecls)Traverse a locally declared element (or an element reference).
This is the real traversal method. It's called after we've done with
all the global declarations.
if (localNSDecls != null) {
schemaDoc.fNamespaceSupport.setEffectiveContext(localNSDecls);
}
// General Attribute Checking
Object[] attrValues = fAttrChecker.checkAttributes(elmDecl, false, schemaDoc);
QName refAtt = (QName) attrValues[XSAttributeChecker.ATTIDX_REF];
XInt minAtt = (XInt) attrValues[XSAttributeChecker.ATTIDX_MINOCCURS];
XInt maxAtt = (XInt) attrValues[XSAttributeChecker.ATTIDX_MAXOCCURS];
XSElementDecl element = null;
XSAnnotationImpl annotation = null;
if (elmDecl.getAttributeNode(SchemaSymbols.ATT_REF) != null) {
if (refAtt != null) {
element = (XSElementDecl)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.ELEMENT_TYPE, refAtt, elmDecl);
Element child = DOMUtil.getFirstChildElement(elmDecl);
if (child != null && DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
annotation = traverseAnnotationDecl(child, attrValues, false, schemaDoc);
child = DOMUtil.getNextSiblingElement(child);
}
else {
String text = DOMUtil.getSyntheticAnnotation(elmDecl);
if (text != null) {
annotation = traverseSyntheticAnnotation(elmDecl, text, attrValues, false, schemaDoc);
}
}
// Element Declaration Representation OK
// 2 If the item's parent is not <schema>, then all of the following must be true:
// 2.1 One of ref or name must be present, but not both.
// 2.2 If ref is present, then all of <complexType>, <simpleType>, <key>, <keyref>, <unique>, nillable, default, fixed, form, block and type must be absent, i.e. only minOccurs, maxOccurs, id are allowed in addition to ref, along with <annotation>.
if (child != null) {
reportSchemaError("src-element.2.2", new Object[]{refAtt.rawname, DOMUtil.getLocalName(child)}, child);
}
} else {
element = null;
}
} else {
element = traverseNamedElement(elmDecl, attrValues, schemaDoc, grammar, false, parent);
}
particle.fMinOccurs = minAtt.intValue();
particle.fMaxOccurs = maxAtt.intValue();
if (element != null) {
particle.fType = XSParticleDecl.PARTICLE_ELEMENT;
particle.fValue = element;
}
else {
particle.fType = XSParticleDecl.PARTICLE_EMPTY;
}
if (refAtt != null) {
XSObjectList annotations;
if (annotation != null) {
annotations = new XSObjectListImpl();
((XSObjectListImpl) annotations).add(annotation);
} else {
annotations = XSObjectListImpl.EMPTY_LIST;
}
particle.fAnnotations = annotations;
} else {
particle.fAnnotations = ((element != null) ? element.fAnnotations
: XSObjectListImpl.EMPTY_LIST);
}
Long defaultVals = (Long)attrValues[XSAttributeChecker.ATTIDX_FROMDEFAULT];
checkOccurrences(particle, SchemaSymbols.ELT_ELEMENT,
(Element)elmDecl.getParentNode(), allContextFlags,
defaultVals.longValue());
fAttrChecker.returnAttrArray(attrValues, schemaDoc);
| | org.apache.xerces.impl.xs.XSElementDecl | traverseNamedElement(org.w3c.dom.Element elmDecl, java.lang.Object[] attrValues, XSDocumentInfo schemaDoc, org.apache.xerces.impl.xs.SchemaGrammar grammar, boolean isGlobal, org.apache.xerces.xs.XSObject parent)Traverse a globally declared element.
Boolean abstractAtt = (Boolean) attrValues[XSAttributeChecker.ATTIDX_ABSTRACT];
XInt blockAtt = (XInt) attrValues[XSAttributeChecker.ATTIDX_BLOCK];
String defaultAtt = (String) attrValues[XSAttributeChecker.ATTIDX_DEFAULT];
XInt finalAtt = (XInt) attrValues[XSAttributeChecker.ATTIDX_FINAL];
String fixedAtt = (String) attrValues[XSAttributeChecker.ATTIDX_FIXED];
XInt formAtt = (XInt) attrValues[XSAttributeChecker.ATTIDX_FORM];
String nameAtt = (String) attrValues[XSAttributeChecker.ATTIDX_NAME];
Boolean nillableAtt = (Boolean) attrValues[XSAttributeChecker.ATTIDX_NILLABLE];
QName subGroupAtt = (QName) attrValues[XSAttributeChecker.ATTIDX_SUBSGROUP];
QName typeAtt = (QName) attrValues[XSAttributeChecker.ATTIDX_TYPE];
// Step 1: get declaration information
XSElementDecl element = null;
if (fSchemaHandler.fDeclPool !=null) {
element = fSchemaHandler.fDeclPool.getElementDecl();
} else {
element = new XSElementDecl();
}
// get 'name'
if (nameAtt != null)
element.fName = fSymbolTable.addSymbol(nameAtt);
// get 'target namespace'
if (isGlobal) {
element.fTargetNamespace = schemaDoc.fTargetNamespace;
element.setIsGlobal();
}
else {
if (parent instanceof XSComplexTypeDecl)
element.setIsLocal((XSComplexTypeDecl)parent);
if (formAtt != null) {
if (formAtt.intValue() == SchemaSymbols.FORM_QUALIFIED)
element.fTargetNamespace = schemaDoc.fTargetNamespace;
else
element.fTargetNamespace = null;
} else if (schemaDoc.fAreLocalElementsQualified) {
element.fTargetNamespace = schemaDoc.fTargetNamespace;
} else {
element.fTargetNamespace = null;
}
}
// get 'block', 'final', 'nillable', 'abstract'
element.fBlock = blockAtt == null ? schemaDoc.fBlockDefault : blockAtt.shortValue();
element.fFinal = finalAtt == null ? schemaDoc.fFinalDefault : finalAtt.shortValue();
// discard valid Block/Final 'Default' values that are invalid for Block/Final
element.fBlock &= (XSConstants.DERIVATION_EXTENSION | XSConstants.DERIVATION_RESTRICTION | XSConstants.DERIVATION_SUBSTITUTION);
element.fFinal &= (XSConstants.DERIVATION_EXTENSION | XSConstants.DERIVATION_RESTRICTION);
if (nillableAtt.booleanValue())
element.setIsNillable();
if (abstractAtt != null && abstractAtt.booleanValue())
element.setIsAbstract();
// get 'value constraint'
if (fixedAtt != null) {
element.fDefault = new ValidatedInfo();
element.fDefault.normalizedValue = fixedAtt;
element.setConstraintType(XSConstants.VC_FIXED);
} else if (defaultAtt != null) {
element.fDefault = new ValidatedInfo();
element.fDefault.normalizedValue = defaultAtt;
element.setConstraintType(XSConstants.VC_DEFAULT);
} else {
element.setConstraintType(XSConstants.VC_NONE);
}
// get 'substitutionGroup affiliation'
if (subGroupAtt != null) {
element.fSubGroup = (XSElementDecl)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.ELEMENT_TYPE, subGroupAtt, elmDecl);
}
// get 'annotation'
Element child = DOMUtil.getFirstChildElement(elmDecl);
XSAnnotationImpl annotation = null;
if(child != null && DOMUtil.getLocalName(child).equals(SchemaSymbols.ELT_ANNOTATION)) {
annotation = traverseAnnotationDecl(child, attrValues, false, schemaDoc);
child = DOMUtil.getNextSiblingElement(child);
}
else {
String text = DOMUtil.getSyntheticAnnotation(elmDecl);
if (text != null) {
annotation = traverseSyntheticAnnotation(elmDecl, text, attrValues, false, schemaDoc);
}
}
XSObjectList annotations;
if (annotation != null) {
annotations = new XSObjectListImpl();
((XSObjectListImpl)annotations).add (annotation);
} else {
annotations = XSObjectListImpl.EMPTY_LIST;
}
element.fAnnotations = annotations;
// get 'type definition'
XSTypeDefinition elementType = null;
boolean haveAnonType = false;
// Handle Anonymous type if there is one
if (child != null) {
String childName = DOMUtil.getLocalName(child);
if (childName.equals(SchemaSymbols.ELT_COMPLEXTYPE)) {
elementType = fSchemaHandler.fComplexTypeTraverser.traverseLocal(child, schemaDoc, grammar);
haveAnonType = true;
child = DOMUtil.getNextSiblingElement(child);
}
else if (childName.equals(SchemaSymbols.ELT_SIMPLETYPE)) {
elementType = fSchemaHandler.fSimpleTypeTraverser.traverseLocal(child, schemaDoc, grammar);
haveAnonType = true;
child = DOMUtil.getNextSiblingElement(child);
}
}
// Handler type attribute
if (elementType == null && typeAtt != null) {
elementType = (XSTypeDefinition)fSchemaHandler.getGlobalDecl(schemaDoc, XSDHandler.TYPEDECL_TYPE, typeAtt, elmDecl);
}
// Get it from the substitutionGroup declaration
if (elementType == null && element.fSubGroup != null) {
elementType = element.fSubGroup.fType;
}
if (elementType == null) {
elementType = SchemaGrammar.fAnyType;
}
element.fType = elementType;
// get 'identity constraint'
// see if there's something here; it had better be key, keyref or unique.
if (child != null) {
String childName = DOMUtil.getLocalName(child);
while (child != null &&
(childName.equals(SchemaSymbols.ELT_KEY) ||
childName.equals(SchemaSymbols.ELT_KEYREF) ||
childName.equals(SchemaSymbols.ELT_UNIQUE))) {
if (childName.equals(SchemaSymbols.ELT_KEY) ||
childName.equals(SchemaSymbols.ELT_UNIQUE)) {
// need to set <key>/<unique> to hidden before traversing it,
// because it has global scope
DOMUtil.setHidden(child, fSchemaHandler.fHiddenNodes);
fSchemaHandler.fUniqueOrKeyTraverser.traverse(child, element, schemaDoc, grammar);
if(DOMUtil.getAttrValue(child, SchemaSymbols.ATT_NAME).length() != 0 ) {
fSchemaHandler.checkForDuplicateNames(
(schemaDoc.fTargetNamespace == null) ? ","+DOMUtil.getAttrValue(child, SchemaSymbols.ATT_NAME)
: schemaDoc.fTargetNamespace+","+ DOMUtil.getAttrValue(child, SchemaSymbols.ATT_NAME),
fSchemaHandler.getIDRegistry(), fSchemaHandler.getIDRegistry_sub(),
child, schemaDoc);
}
} else if (childName.equals(SchemaSymbols.ELT_KEYREF)) {
fSchemaHandler.storeKeyRef(child, schemaDoc, element);
}
child = DOMUtil.getNextSiblingElement(child);
if (child != null) {
childName = DOMUtil.getLocalName(child);
}
}
}
// Step 2: register the element decl to the grammar
if (isGlobal && nameAtt != null)
grammar.addGlobalElementDecl(element);
// Step 3: check against schema for schemas
// required attributes
if (nameAtt == null) {
if (isGlobal)
reportSchemaError("s4s-att-must-appear", new Object[]{SchemaSymbols.ELT_ELEMENT, SchemaSymbols.ATT_NAME}, elmDecl);
else
reportSchemaError("src-element.2.1", null, elmDecl);
nameAtt = NO_NAME;
}
// element
if (child != null) {
reportSchemaError("s4s-elt-must-match.1", new Object[]{nameAtt, "(annotation?, (simpleType | complexType)?, (unique | key | keyref)*))", DOMUtil.getLocalName(child)}, child);
}
// Step 4: check 3.3.3 constraints
// src-element
// 1 default and fixed must not both be present.
if (defaultAtt != null && fixedAtt != null) {
reportSchemaError("src-element.1", new Object[]{nameAtt}, elmDecl);
}
// 2 If the item's parent is not <schema>, then all of the following must be true:
// 2.1 One of ref or name must be present, but not both.
// This is checked in XSAttributeChecker
// 2.2 If ref is present, then all of <complexType>, <simpleType>, <key>, <keyref>, <unique>, nillable, default, fixed, form, block and type must be absent, i.e. only minOccurs, maxOccurs, id are allowed in addition to ref, along with <annotation>.
// Attributes are checked in XSAttributeChecker, elements are checked in "traverse" method
// 3 type and either <simpleType> or <complexType> are mutually exclusive.
if (haveAnonType && (typeAtt != null)) {
reportSchemaError("src-element.3", new Object[]{nameAtt}, elmDecl);
}
// Step 5: check 3.3.6 constraints
// check for NOTATION type
checkNotationType(nameAtt, elementType, elmDecl);
// e-props-correct
// 2 If there is a {value constraint}, the canonical lexical representation of its value must be valid with respect to the {type definition} as defined in Element Default Valid (Immediate) (3.3.6).
if (element.fDefault != null) {
fValidationState.setNamespaceSupport(schemaDoc.fNamespaceSupport);
if (XSConstraints.ElementDefaultValidImmediate(element.fType, element.fDefault.normalizedValue, fValidationState, element.fDefault) == null) {
reportSchemaError ("e-props-correct.2", new Object[]{nameAtt, element.fDefault.normalizedValue}, elmDecl);
element.setConstraintType(XSConstants.VC_NONE);
}
}
// 4 If there is an {substitution group affiliation}, the {type definition} of the element declaration must be validly derived from the {type definition} of the {substitution group affiliation}, given the value of the {substitution group exclusions} of the {substitution group affiliation}, as defined in Type Derivation OK (Complex) (3.4.6) (if the {type definition} is complex) or as defined in Type Derivation OK (Simple) (3.14.6) (if the {type definition} is simple).
if (element.fSubGroup != null) {
if (!XSConstraints.checkTypeDerivationOk(element.fType, element.fSubGroup.fType, element.fSubGroup.fFinal)) {
reportSchemaError ("e-props-correct.4", new Object[]{nameAtt, subGroupAtt.prefix+":"+subGroupAtt.localpart}, elmDecl);
}
}
// 5 If the {type definition} or {type definition}'s {content type} is or is derived from ID then there must not be a {value constraint}.
if (element.fDefault != null) {
if ((elementType.getTypeCategory() == XSTypeDefinition.SIMPLE_TYPE &&
((XSSimpleType)elementType).isIDType()) ||
(elementType.getTypeCategory() == XSTypeDefinition.COMPLEX_TYPE &&
((XSComplexTypeDecl)elementType).containsTypeID())) {
reportSchemaError ("e-props-correct.5", new Object[]{element.fName}, elmDecl);
}
}
// Element without a name. Return null.
if (element.fName == null)
return null;
return element;
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