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package com.sun.org.apache.xerces.internal.impl.xs;
import com.sun.org.apache.xerces.internal.impl.dv.ValidatedInfo;
import com.sun.org.apache.xerces.internal.impl.xs.util.XSObjectListImpl;
import com.sun.org.apache.xerces.internal.xs.ShortList;
import com.sun.org.apache.xerces.internal.xs.XSAttributeDeclaration;
import com.sun.org.apache.xerces.internal.xs.XSAttributeUse;
import com.sun.org.apache.xerces.internal.xs.XSConstants;
import com.sun.org.apache.xerces.internal.xs.XSNamespaceItem;
import com.sun.org.apache.xerces.internal.xs.XSObjectList;
/**
* The XML representation for an attribute use
* schema component is a local element information item
*
* @xerces.internal
*
* @author Sandy Gao, IBM
* @version $Id: XSAttributeUseImpl.java,v 1.7 2010-11-01 04:39:55 joehw Exp $
*/
public class XSAttributeUseImpl implements XSAttributeUse {
// the referred attribute decl
public XSAttributeDecl fAttrDecl = null;
// use information: SchemaSymbols.USE_OPTIONAL, REQUIRED, PROHIBITED
public short fUse = SchemaSymbols.USE_OPTIONAL;
// value constraint type: default, fixed or !specified
public short fConstraintType = XSConstants.VC_NONE;
// value constraint value
public ValidatedInfo fDefault = null;
// optional annotation
public XSObjectList fAnnotations = null;
public void reset(){
fDefault = null;
fAttrDecl = null;
fUse = SchemaSymbols.USE_OPTIONAL;
fConstraintType = XSConstants.VC_NONE;
fAnnotations = null;
}
/**
* Get the type of the object, i.e ELEMENT_DECLARATION.
*/
public short getType() {
return XSConstants.ATTRIBUTE_USE;
}
/**
* The name
of this XSObject
depending on the
* XSObject
type.
*/
public String getName() {
return null;
}
/**
* The namespace URI of this node, or null
if it is
* unspecified. defines how a namespace URI is attached to schema
* components.
*/
public String getNamespace() {
return null;
}
/**
* {required} determines whether this use of an attribute declaration
* requires an appropriate attribute information item to be present, or
* merely allows it.
*/
public boolean getRequired() {
return fUse == SchemaSymbols.USE_REQUIRED;
}
/**
* {attribute declaration} provides the attribute declaration itself,
* which will in turn determine the simple type definition used.
*/
public XSAttributeDeclaration getAttrDeclaration() {
return fAttrDecl;
}
/**
* Value Constraint: one of default, fixed.
*/
public short getConstraintType() {
return fConstraintType;
}
/**
* Value Constraint: The actual value (with respect to the {type
* definition}).
*/
public String getConstraintValue() {
// REVISIT: SCAPI: what's the proper representation
return getConstraintType() == XSConstants.VC_NONE ?
null :
fDefault.stringValue();
}
/**
* @see org.apache.xerces.xs.XSObject#getNamespaceItem()
*/
public XSNamespaceItem getNamespaceItem() {
return null;
}
public Object getActualVC() {
return getConstraintType() == XSConstants.VC_NONE ?
null :
fDefault.actualValue;
}
public short getActualVCType() {
return getConstraintType() == XSConstants.VC_NONE ?
XSConstants.UNAVAILABLE_DT :
fDefault.actualValueType;
}
public ShortList getItemValueTypes() {
return getConstraintType() == XSConstants.VC_NONE ?
null :
fDefault.itemValueTypes;
}
/**
* Optional. Annotations.
*/
public XSObjectList getAnnotations() {
return (fAnnotations != null) ? fAnnotations : XSObjectListImpl.EMPTY_LIST;
}
} // class XSAttributeUseImpl