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package com.sun.org.apache.xerces.internal.util;
import java.util.Hashtable;
import com.sun.org.apache.xerces.internal.xs.XSTypeDefinition;
import org.w3c.dom.TypeInfo;
/**
* Straight-forward implementation of {@link TypeInfo}.
*
*
* This class is immutable.
*
* @author
* Kohsuke Kawaguchi ([email protected])
*/
public class TypeInfoImpl implements TypeInfo {
private final String typeNamespace;
private final String typeName;
private final static String dtdNamespaceURI = "http://www.w3.org/TR/REC-xml";
public TypeInfoImpl(){
typeNamespace = null;
typeName = null;
}
public TypeInfoImpl(String typeNamespace, String typeName) {
this.typeNamespace = typeNamespace;
this.typeName = typeName;
}
public TypeInfoImpl(XSTypeDefinition t) {
this( t.getNamespace(), t.getName() );
}
public String getTypeName() {
return typeName;
}
public String getTypeNamespace() {
return typeNamespace;
}
/**
* Always returns false.
*/
public boolean isDerivedFrom(String typeNamespaceArg, String typeNameArg, int derivationMethod) {
return false;
}
/**
* Map from DTD type name ({@link String}) to {@link TypeInfo}.
*/
private static final Hashtable dtdCache = new Hashtable();
/**
* Obtains a {@link TypeInfo} object from the DTD type name.
*
* Since DTD has a very limited type names, we can actually
* cache the {@link TypeInfo} objects.
*/
public static TypeInfo getDTDTypeInfo( String name ) {
TypeInfo t = (TypeInfo)dtdCache.get(name);
if(t==null) throw new IllegalArgumentException("Unknown DTD datatype "+name);
return t;
}
static {
String[] typeNames = new String[]{
"CDATA", "ID", "IDREF", "IDREFS", "NMTOKEN", "NMTOKENS",
"ENTITY", "ENTITIES", "NOTATION"};
for( int i=0; i