1 /*
2 * Copyright 2012-2013 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.properties.api.config.domain;
17
18 import java.util.Collection;
19
20 import de.smartics.properties.api.config.domain.key.ConfigurationKey;
21 import de.smartics.properties.api.core.domain.PropertyDescriptorRegistry;
22 import de.smartics.util.lang.NullArgumentException;
23
24 /**
25 * Management interface to change configuration properties.
26 * <p>
27 * Implementations are not required to be thread-safe, but usually should be.
28 * </p>
29 */
30 public interface ConfigurationRepositoryManagement extends
31 ConfigurationRepository
32 {
33 // ********************************* Fields *********************************
34
35 // --- constants ------------------------------------------------------------
36
37 // ****************************** Initializer *******************************
38
39 // ****************************** Inner Classes *****************************
40
41 // ********************************* Methods ********************************
42
43 // --- get&set --------------------------------------------------------------
44
45 // --- business -------------------------------------------------------------
46
47 /**
48 * Registers the given configuration properties for the given configuration
49 * {@code key}.
50 *
51 * @param key the key that specifies an application in its environment.
52 * @param configurationProperties the configuration properties to register by
53 * the given {@code key}.
54 * @throws NullArgumentException if {@code key} or
55 * {@code configurationProperties} is <code>null</code>.
56 * @throws DuplicateConfigurationException if a configuration with the given
57 * key is already registered.
58 */
59 void registerProperties(ConfigurationKey<?> key,
60 ConfigurationPropertiesManagement configurationProperties)
61 throws NullArgumentException, DuplicateConfigurationException;
62
63 /**
64 * Removes the configuration properties for the given configuration key.
65 *
66 * @param key the key that specifies an application in its environment.
67 * @return the configuration properties that has been removed. May be
68 * <code>null</code>.
69 * @throws NullArgumentException if {@code key} is <code>null</code>.
70 */
71 ConfigurationPropertiesManagement deregisterProperties(ConfigurationKey<?> key)
72 throws NullArgumentException;
73
74 /**
75 * Returns the list of keys with configuration properties.
76 *
77 * @return the list of keys with configuration properties.
78 */
79 Collection<ConfigurationKey<?>> getKeys();
80
81 /**
82 * Fetches the properties management for the given configuration key. The
83 * default values for partial key are also attached.
84 *
85 * @param key the key that specifies an application in its environment.
86 * @return the requested configuration properties. Never <code>null</code>.
87 * @throws NullArgumentException if {@code key} is <code>null</code>.
88 * @throws MissingConfigurationException if there is no configuration for the
89 * given key.
90 * @see #getProperties(ConfigurationKey)
91 */
92 ConfigurationPropertiesManagement getPropertiesManagementWithDefaults(
93 ConfigurationKey<?> key) throws NullArgumentException,
94 MissingConfigurationException;
95
96 /**
97 * Fetches the properties management for the given configuration key.
98 *
99 * @param key the key that specifies an application in its environment.
100 * @return the requested configuration properties. Never <code>null</code>.
101 * @throws NullArgumentException if {@code key} is <code>null</code>.
102 * @throws MissingConfigurationException if there is no configuration for the
103 * given key.
104 * @see #getProperties(ConfigurationKey)
105 */
106 ConfigurationPropertiesManagement getPropertiesManagement(
107 ConfigurationKey<?> key) throws NullArgumentException,
108 MissingConfigurationException;
109
110 /**
111 * Checks if a properties management for the given configuration key is
112 * present.
113 *
114 * @param key the key that specifies an application in its environment.
115 * @return <code>true</code> if the configuration is present,
116 * <code>false</code> if not.
117 * @throws NullArgumentException if {@code key} is <code>null</code>.
118 */
119 boolean hasPropertiesManagement(ConfigurationKey<?> key)
120 throws NullArgumentException;
121
122 /**
123 * Returns the registry to resolve property descriptors.
124 *
125 * @return the registry to resolve property descriptors.
126 */
127 PropertyDescriptorRegistry getRegistry();
128
129 /**
130 * Releases resources acquired by this instance.
131 */
132 void release();
133
134 // --- object basics --------------------------------------------------------
135
136 }