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1 /*
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2 * $Header: /cvshome/build/org.osgi.framework/src/org/osgi/framework/BundleEvent.java,v 1.19 2007/02/20 00:14:12 hargrave Exp $
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3 *
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4 * Copyright (c) OSGi Alliance (2000, 2007). All Rights Reserved.
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5 *
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6 * Licensed under the Apache License, Version 2.0 (the "License");
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7 * you may not use this file except in compliance with the License.
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8 * You may obtain a copy of the License at
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9 *
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10 * http://www.apache.org/licenses/LICENSE-2.0
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11 *
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12 * Unless required by applicable law or agreed to in writing, software
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 * See the License for the specific language governing permissions and
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16 * limitations under the License.
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17 */
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18
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19 // Port to the D programming language:
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20 // Frank Benoit <benoit@tionex.de>
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21 module org.osgi.framework.BundleEvent;
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22
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23 import java.lang.all;
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24
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25 import org.osgi.framework.Bundle; // packageimport
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26
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27 import java.util.EventObject;
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28
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29 /**
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30 * An event from the Framework describing a bundle lifecycle change.
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31 * <p>
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32 * <code>BundleEvent</code> objects are delivered to
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33 * <code>SynchronousBundleListener</code>s and <code>BundleListener</code>s
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34 * when a change occurs in a bundle's lifecycle. A type code is used to identify
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35 * the event type for future extendability.
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36 *
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37 * <p>
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38 * OSGi Alliance reserves the right to extend the set of types.
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39 *
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40 * @Immutable
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41 * @see BundleListener
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42 * @see SynchronousBundleListener
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43 * @version $Revision: 1.19 $
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44 */
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45
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46 public class BundleEvent : EventObject {
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47 static final long serialVersionUID = 4080640865971756012L;
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48 /**
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49 * Bundle that had a change occur in its lifecycle.
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50 */
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51 private final Bundle bundle;
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52
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53 /**
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54 * Type of bundle lifecycle change.
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55 */
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56 private final int type;
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57
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58 /**
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59 * The bundle has been installed.
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60 * <p>
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61 * The value of <code>INSTALLED</code> is 0x00000001.
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62 *
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63 * @see BundleContext#installBundle(String)
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64 */
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65 public final static int INSTALLED = 0x00000001;
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66
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67 /**
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68 * The bundle has been started.
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69 * <p>
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70 * The bundle's
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71 * {@link BundleActivator#start(BundleContext) BundleActivator start} method
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72 * has been executed if the bundle has a bundle activator class.
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73 * <p>
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74 * The value of <code>STARTED</code> is 0x00000002.
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75 *
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76 * @see Bundle#start()
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77 */
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78 public final static int STARTED = 0x00000002;
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79
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80 /**
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81 * The bundle has been stopped.
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82 * <p>
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83 * The bundle's
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84 * {@link BundleActivator#stop(BundleContext) BundleActivator stop} method
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85 * has been executed if the bundle has a bundle activator class.
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86 * <p>
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87 * The value of <code>STOPPED</code> is 0x00000004.
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88 *
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89 * @see Bundle#stop()
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90 */
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91 public final static int STOPPED = 0x00000004;
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92
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93 /**
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94 * The bundle has been updated.
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95 * <p>
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96 * The value of <code>UPDATED</code> is 0x00000008.
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97 *
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98 * @see Bundle#update()
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99 */
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100 public final static int UPDATED = 0x00000008;
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101
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102 /**
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103 * The bundle has been uninstalled.
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104 * <p>
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105 * The value of <code>UNINSTALLED</code> is 0x00000010.
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106 *
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107 * @see Bundle#uninstall
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108 */
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109 public final static int UNINSTALLED = 0x00000010;
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110
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111 /**
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112 * The bundle has been resolved.
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113 * <p>
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114 * The value of <code>RESOLVED</code> is 0x00000020.
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115 *
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116 * @see Bundle#RESOLVED
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117 * @since 1.3
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118 */
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119 public final static int RESOLVED = 0x00000020;
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120
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121 /**
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122 * The bundle has been unresolved.
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123 * <p>
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124 * The value of <code>UNRESOLVED</code> is 0x00000040.
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125 *
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126 * @see Bundle#INSTALLED
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127 * @since 1.3
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128 */
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129 public final static int UNRESOLVED = 0x00000040;
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130
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131 /**
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132 * The bundle is about to be activated.
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133 * <p>
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134 * The bundle's
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135 * {@link BundleActivator#start(BundleContext) BundleActivator start} method
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136 * is about to be called if the bundle has a bundle activator class. This
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137 * event is only delivered to {@link SynchronousBundleListener}s. It is not
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138 * delivered to <code>BundleListener</code>s.
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139 * <p>
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140 * The value of <code>STARTING</code> is 0x00000080.
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141 *
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142 * @see Bundle#start()
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143 * @since 1.3
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144 */
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145 public final static int STARTING = 0x00000080;
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146
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147 /**
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148 * The bundle is about to deactivated.
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149 * <p>
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150 * The bundle's
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151 * {@link BundleActivator#stop(BundleContext) BundleActivator stop} method
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152 * is about to be called if the bundle has a bundle activator class. This
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153 * event is only delivered to {@link SynchronousBundleListener}s. It is not
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154 * delivered to <code>BundleListener</code>s.
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155 * <p>
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156 * The value of <code>STOPPING</code> is 0x00000100.
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157 *
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158 * @see Bundle#stop()
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159 * @since 1.3
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160 */
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161 public final static int STOPPING = 0x00000100;
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162
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163 /**
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164 * The bundle will be lazily activated.
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165 * <p>
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166 * The bundle has a {@link Constants#ACTIVATION_LAZY lazy activation policy}
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167 * and is waiting to be activated. It is now in the
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168 * {@link Bundle#STARTING STARTING} state and has a valid
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169 * <code>BundleContext</code>. This event is only delivered to
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170 * {@link SynchronousBundleListener}s. It is not delivered to
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171 * <code>BundleListener</code>s.
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172 * <p>
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173 * The value of <code>LAZY_ACTIVATION</code> is 0x00000200.
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174 *
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175 * @since 1.4
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176 */
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177 public final static int LAZY_ACTIVATION = 0x00000200;
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178
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179 /**
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180 * Creates a bundle event of the specified type.
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181 *
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182 * @param type The event type.
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183 * @param bundle The bundle which had a lifecycle change.
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184 */
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185
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186 public this(int type, Bundle bundle) {
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187 super(bundle);
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188 this.bundle = bundle;
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189 this.type = type;
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190 }
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191
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192 /**
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193 * Returns the bundle which had a lifecycle change. This bundle is the
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194 * source of the event.
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195 *
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196 * @return The bundle that had a change occur in its lifecycle.
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197 */
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198 public Bundle getBundle() {
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199 return bundle;
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200 }
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201
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202 /**
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203 * Returns the type of lifecyle event. The type values are:
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204 * <ul>
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205 * <li>{@link #INSTALLED}
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206 * <li>{@link #RESOLVED}
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207 * <li>{@link #LAZY_ACTIVATION}
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208 * <li>{@link #STARTING}
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209 * <li>{@link #STARTED}
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210 * <li>{@link #STOPPING}
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211 * <li>{@link #STOPPED}
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212 * <li>{@link #UPDATED}
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213 * <li>{@link #UNRESOLVED}
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214 * <li>{@link #UNINSTALLED}
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215 * </ul>
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216 *
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217 * @return The type of lifecycle event.
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218 */
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219
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220 public int getType() {
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221 return type;
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222 }
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223 }
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