xsmodel.java

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/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.sun.org.apache.xerces.internal.xs;

/**
 * This interface represents an XML Schema. 
 */
public interface XSModel {
    /**
     * Convenience method. Returns a list of all namespaces that belong to 
     * this schema. The value <code>null</code> is not a valid namespace 
     * name, but if there are components that do not have a target namespace
     * , <code>null</code> is included in this list. 
     */
    public StringList getNamespaces();

    /**
     * A set of namespace schema information information items (of type 
     * <code>XSNamespaceItem</code>), one for each namespace name which 
     * appears as the target namespace of any schema component in the schema 
     * used for that assessment, and one for absent if any schema component 
     * in the schema had no target namespace. For more information see 
     * schema information. 
     */
    public XSNamespaceItemList getNamespaceItems();

    /**
     * Returns a list of top-level components, i.e. element declarations, 
     * attribute declarations, etc. 
     * @param objectType The type of the declaration, i.e. 
     *   <code>ELEMENT_DECLARATION</code>. Note that 
     *   <code>XSTypeDefinition.SIMPLE_TYPE</code> and 
     *   <code>XSTypeDefinition.COMPLEX_TYPE</code> can also be used as the 
     *   <code>objectType</code> to retrieve only complex types or simple 
     *   types, instead of all types.
     * @return  A list of top-level definitions of the specified type in 
     *   <code>objectType</code> or an empty <code>XSNamedMap</code> if no 
     *   such definitions exist. 
     */
    public XSNamedMap getComponents(short objectType);

    /**
     * Convenience method. Returns a list of top-level component declarations 
     * that are defined within the specified namespace, i.e. element 
     * declarations, attribute declarations, etc. 
     * @param objectType The type of the declaration, i.e. 
     *   <code>ELEMENT_DECLARATION</code>.
     * @param namespace The namespace to which the declaration belongs or 
     *   <code>null</code> (for components with no target namespace).
     * @return  A list of top-level definitions of the specified type in 
     *   <code>objectType</code> and defined in the specified 
     *   <code>namespace</code> or an empty <code>XSNamedMap</code>. 
     */
    public XSNamedMap getComponentsByNamespace(short objectType, 
                                               String namespace);

    /**
     *  [annotations]: a set of annotations if it exists, otherwise an empty 
     * <code>XSObjectList</code>. 
     */
    public XSObjectList getAnnotations();

    /**
     * Convenience method. Returns a top-level element declaration. 
     * @param name The name of the declaration.
     * @param namespace The namespace of the declaration, otherwise 
     *   <code>null</code>.
     * @return A top-level element declaration or <code>null</code> if such a 
     *   declaration does not exist. 
     */
    public XSElementDeclaration getElementDeclaration(String name, 
                                                      String namespace);

    /**
     * Convenience method. Returns a top-level attribute declaration. 
     * @param name The name of the declaration.
     * @param namespace The namespace of the declaration, otherwise 
     *   <code>null</code>.
     * @return A top-level attribute declaration or <code>null</code> if such 
     *   a declaration does not exist. 
     */
    public XSAttributeDeclaration getAttributeDeclaration(String name, 
                                                          String namespace);

    /**
     * Convenience method. Returns a top-level simple or complex type 
     * definition. 
     * @param name The name of the definition.
     * @param namespace The namespace of the declaration, otherwise 
     *   <code>null</code>.
     * @return An <code>XSTypeDefinition</code> or <code>null</code> if such 
     *   a definition does not exist. 
     */
    public XSTypeDefinition getTypeDefinition(String name, 
                                              String namespace);

    /**
     * Convenience method. Returns a top-level attribute group definition. 
     * @param name The name of the definition.
     * @param namespace The namespace of the definition, otherwise 
     *   <code>null</code>.
     * @return A top-level attribute group definition or <code>null</code> if 
     *   such a definition does not exist. 
     */
    public XSAttributeGroupDefinition getAttributeGroup(String name, 
                                                        String namespace);

    /**
     * Convenience method. Returns a top-level model group definition. 
     * @param name The name of the definition.
     * @param namespace The namespace of the definition, otherwise 
     *   <code>null</code>.
     * @return A top-level model group definition or <code>null</code> if 
     *   such a definition does not exist. 
     */
    public XSModelGroupDefinition getModelGroupDefinition(String name, 
                                                          String namespace);

    /**
     * Convenience method. Returns a top-level notation declaration. 
     * @param name The name of the declaration.
     * @param namespace The namespace of the declaration, otherwise 
     *   <code>null</code>.
     * @return A top-level notation declaration or <code>null</code> if such 
     *   a declaration does not exist. 
     */
    public XSNotationDeclaration getNotationDeclaration(String name, 
                                                        String namespace);

}