import com.sun.org.apache.xerces.internal.xs.XSAttributeGroupDefinition; //导入依赖的package包/类
private void expandRelatedComponents(XSObject component, Vector componentList, Map<String, Vector> dependencies) {
    short componentType = component.getType();
    switch (componentType) {
    case XSConstants.TYPE_DEFINITION :
        expandRelatedTypeComponents((XSTypeDefinition) component, componentList, component.getNamespace(), dependencies);
        break;
    case XSConstants.ATTRIBUTE_DECLARATION :
        expandRelatedAttributeComponents((XSAttributeDeclaration) component, componentList, component.getNamespace(), dependencies);
        break;
    case XSConstants.ATTRIBUTE_GROUP :
        expandRelatedAttributeGroupComponents((XSAttributeGroupDefinition) component, componentList, component.getNamespace(), dependencies);
    case XSConstants.ELEMENT_DECLARATION :
        expandRelatedElementComponents((XSElementDeclaration) component, componentList, component.getNamespace(), dependencies);
        break;
    case XSConstants.MODEL_GROUP_DEFINITION :
        expandRelatedModelGroupDefinitionComponents((XSModelGroupDefinition) component, componentList, component.getNamespace(), dependencies);
    case XSConstants.ATTRIBUTE_USE :
        //expandRelatedAttributeUseComponents((XSAttributeUse)component, componentList, dependencies);
    case XSConstants.NOTATION_DECLARATION :
    case XSConstants.IDENTITY_CONSTRAINT :
    default :
        break;
    }
}
 

import com.sun.org.apache.xerces.internal.xs.XSAttributeGroupDefinition; //导入依赖的package包/类
/**
 * Convenience method. Returns a top-level attribute group definition.
 * @param name The name of the definition.
 * @param namespace The namespace of the definition, otherwise null.
 * @return A top-level attribute group definition or null if such
 *   definition does not exist.
 */
public XSAttributeGroupDefinition getAttributeGroup(String name,
                                                    String namespace) {
    SchemaGrammar sg = (SchemaGrammar)fGrammarMap.get(null2EmptyString(namespace));
    if (sg == null) {
        return null;
    }
    return (XSAttributeGroupDefinition)sg.fGlobalAttrGrpDecls.get(name);
}
 

import com.sun.org.apache.xerces.internal.xs.XSAttributeGroupDefinition; //导入依赖的package包/类
private void expandRelatedAttributeGroupComponents(XSAttributeGroupDefinition attrGroup, Vector componentList
        , String namespace, Map<String, Vector> dependencies) {
    expandRelatedAttributeUsesComponents(attrGroup.getAttributeUses(), componentList, namespace, dependencies);
}
 

import com.sun.org.apache.xerces.internal.xs.XSAttributeGroupDefinition; //导入依赖的package包/类
/**
 * Convenience method. Returns a top-level attribute group definition.
 * @param name The name of the definition.
 * @return A top-level attribute group definition or null if such
 *   definition does not exist.
 */
public XSAttributeGroupDefinition getAttributeGroup(String name) {
    return getGlobalAttributeGroupDecl(name);
}