001 package de.deepamehta.core.impl;
002
003 import de.deepamehta.core.AssociationDefinition;
004 import de.deepamehta.core.ViewConfiguration;
005 import de.deepamehta.core.model.AssociationDefinitionModel;
006 import de.deepamehta.core.model.RoleModel;
007 import de.deepamehta.core.model.TopicModel;
008
009 import java.util.logging.Logger;
010
011
012
013 /**
014 * An association definition that is attached to the {@link DeepaMehtaService}.
015 */
016 class AttachedAssociationDefinition extends AttachedAssociation implements AssociationDefinition {
017
018 // ---------------------------------------------------------------------------------------------- Instance Variables
019
020 private AttachedViewConfiguration viewConfig; // attached object cache
021
022 private Logger logger = Logger.getLogger(getClass().getName());
023
024 // ---------------------------------------------------------------------------------------------------- Constructors
025
026 AttachedAssociationDefinition(AssociationDefinitionModel model, EmbeddedService dms) {
027 super(model, dms);
028 initViewConfig();
029 }
030
031 // -------------------------------------------------------------------------------------------------- Public Methods
032
033
034
035 // ********************************************
036 // *** AssociationDefinition Implementation ***
037 // ********************************************
038
039
040
041 @Override
042 public String getCustomAssocTypeUri() {
043 return getModel().getCustomAssocTypeUri();
044 }
045
046 @Override
047 public String getInstanceLevelAssocTypeUri() {
048 return getModel().getInstanceLevelAssocTypeUri();
049 }
050
051 @Override
052 public String getParentTypeUri() {
053 return getModel().getParentTypeUri();
054 }
055
056 @Override
057 public String getChildTypeUri() {
058 return getModel().getChildTypeUri();
059 }
060
061 @Override
062 public String getParentCardinalityUri() {
063 return getModel().getParentCardinalityUri();
064 }
065
066 @Override
067 public String getChildCardinalityUri() {
068 return getModel().getChildCardinalityUri();
069 }
070
071 @Override
072 public ViewConfiguration getViewConfig() {
073 return viewConfig;
074 }
075
076 // ---
077
078 @Override
079 public AssociationDefinitionModel getModel() {
080 return (AssociationDefinitionModel) super.getModel();
081 }
082
083 // ---
084
085 @Override
086 public void setCustomAssocTypeUri(String customAssocTypeUri) {
087 if (customAssocTypeUri != null) {
088 getChildTopics().setRef("dm4.core.assoc_type", customAssocTypeUri);
089 } else {
090 getChildTopics().setDeletionRef("dm4.core.assoc_type", customAssocTypeUri);
091 }
092 }
093
094 // ---
095
096 @Override
097 public void setParentCardinalityUri(String parentCardinalityUri) {
098 // update memory
099 getModel().setParentCardinalityUri(parentCardinalityUri);
100 // update DB
101 dms.typeStorage.storeParentCardinalityUri(getId(), parentCardinalityUri);
102 }
103
104 @Override
105 public void setChildCardinalityUri(String childCardinalityUri) {
106 // update memory
107 getModel().setChildCardinalityUri(childCardinalityUri);
108 // update DB
109 dms.typeStorage.storeChildCardinalityUri(getId(), childCardinalityUri);
110 }
111
112
113
114 // === Updating ===
115
116 @Override
117 public void update(AssociationDefinitionModel newModel) {
118 // assoc type
119 updateAssocTypeUri(newModel);
120 // custom assoc type
121 updateCustomAssocTypeUri(newModel.getCustomAssocTypeUri());
122 // cardinality
123 updateParentCardinality(newModel.getParentCardinalityUri());
124 updateChildCardinality(newModel.getChildCardinalityUri());
125 }
126
127 // ------------------------------------------------------------------------------------------------- Private Methods
128
129
130
131 // === Update ===
132
133 private void updateAssocTypeUri(AssociationDefinitionModel newModel) {
134 String newTypeUri = newModel.getTypeUri();
135 // abort if no update is requested
136 if (newTypeUri == null) {
137 return;
138 }
139 //
140 String typeUri = getTypeUri();
141 if (!typeUri.equals(newTypeUri)) {
142 super.update(newModel);
143 }
144 }
145
146 private void updateCustomAssocTypeUri(String newCustomAssocTypeUri) {
147 /* abort if no update is requested ### TODO
148 if (newCustomAssocTypeUri == null) {
149 return;
150 } */
151 //
152 String customAssocTypeUri = getCustomAssocTypeUri();
153 if (customAssocTypeUri != null ? !customAssocTypeUri.equals(newCustomAssocTypeUri) :
154 newCustomAssocTypeUri != null) {
155 logger.info("### Changing custom association type URI from \"" + customAssocTypeUri + "\" -> \"" +
156 newCustomAssocTypeUri + "\"");
157 setCustomAssocTypeUri(newCustomAssocTypeUri);
158 }
159 }
160
161 // ---
162
163 private void updateParentCardinality(String newParentCardinalityUri) {
164 // abort if no update is requested
165 if (newParentCardinalityUri == null) {
166 return;
167 }
168 //
169 String parentCardinalityUri = getParentCardinalityUri();
170 if (!parentCardinalityUri.equals(newParentCardinalityUri)) {
171 logger.info("### Changing parent cardinality URI from \"" + parentCardinalityUri + "\" -> \"" +
172 newParentCardinalityUri + "\"");
173 setParentCardinalityUri(newParentCardinalityUri);
174 }
175 }
176
177 private void updateChildCardinality(String newChildCardinalityUri) {
178 // abort if no update is requested
179 if (newChildCardinalityUri == null) {
180 return;
181 }
182 //
183 String childCardinalityUri = getChildCardinalityUri();
184 if (!childCardinalityUri.equals(newChildCardinalityUri)) {
185 logger.info("### Changing child cardinality URI from \"" + childCardinalityUri + "\" -> \"" +
186 newChildCardinalityUri + "\"");
187 setChildCardinalityUri(newChildCardinalityUri);
188 }
189 }
190
191
192
193 // === Attached Object Cache ===
194
195 private void initViewConfig() {
196 RoleModel configurable = dms.typeStorage.createConfigurableAssocDef(getId()); // ### ID is uninitialized
197 this.viewConfig = new AttachedViewConfiguration(configurable, getModel().getViewConfigModel(), dms);
198 }
199 }