1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache license, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the license for the specific language governing permissions and 15 * limitations under the license. 16 */ 17 package org.apache.logging.log4j.catalog.api.dao; 18 19 import java.util.Map; 20 21 import org.apache.logging.log4j.catalog.api.Attribute; 22 import org.apache.logging.log4j.catalog.api.CatalogData; 23 import org.apache.logging.log4j.catalog.api.CatalogReader; 24 import org.apache.logging.log4j.catalog.api.CatalogWriter; 25 import org.apache.logging.log4j.catalog.api.Category; 26 import org.apache.logging.log4j.catalog.api.Constraint; 27 import org.apache.logging.log4j.catalog.api.Event; 28 import org.apache.logging.log4j.catalog.api.Product; 29 import org.apache.logging.log4j.catalog.api.exception.DuplicateNameException; 30 import org.apache.logging.log4j.catalog.api.exception.NameNotFoundException; 31 32 /** 33 * Provides access to the Catalog. 34 */ 35 public interface CatalogDao extends CatalogReader, CatalogWriter { 36 37 /** 38 * Return all the Attributes as a Map. 39 * @return A map of the attributes where the key is the Attribute's name. 40 */ 41 Map<String, Attribute> getAttributes(); 42 43 /** 44 * Retrieves an Attribute. 45 * @param name The attribute name. 46 * @return The Attribute or null if no attribute with the specified name exists. 47 */ 48 Attribute getAttribute(String name); 49 50 /** 51 * Retrieves a Category. Modifications made to the Category may not be reflected if updateCategory() is 52 * not called. 53 * @param name The category name. 54 * @return The Category. 55 */ 56 Category getCategory(String name); 57 58 59 Event getEvent(String name); 60 61 62 Product getProduct(String name); 63 64 }