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 getInstanceLevelAssocTypeUri() {
043 return getModel().getInstanceLevelAssocTypeUri();
044 }
045
046 @Override
047 public String getParentTypeUri() {
048 return getModel().getParentTypeUri();
049 }
050
051 @Override
052 public String getChildTypeUri() {
053 return getModel().getChildTypeUri();
054 }
055
056 @Override
057 public String getParentCardinalityUri() {
058 return getModel().getParentCardinalityUri();
059 }
060
061 @Override
062 public String getChildCardinalityUri() {
063 return getModel().getChildCardinalityUri();
064 }
065
066 @Override
067 public ViewConfiguration getViewConfig() {
068 return viewConfig;
069 }
070
071 // ---
072
073 @Override
074 public AssociationDefinitionModel getModel() {
075 return (AssociationDefinitionModel) super.getModel();
076 }
077
078 // ---
079
080 @Override
081 public void setParentCardinalityUri(String parentCardinalityUri) {
082 // update memory
083 getModel().setParentCardinalityUri(parentCardinalityUri);
084 // update DB
085 dms.typeStorage.storeParentCardinalityUri(getId(), parentCardinalityUri);
086 }
087
088 @Override
089 public void setChildCardinalityUri(String childCardinalityUri) {
090 // update memory
091 getModel().setChildCardinalityUri(childCardinalityUri);
092 // update DB
093 dms.typeStorage.storeChildCardinalityUri(getId(), childCardinalityUri);
094 }
095
096
097
098 // === Updating ===
099
100 @Override
101 public void update(AssociationDefinitionModel newModel) {
102 // assoc type
103 updateAssocTypeUri(newModel);
104 // cardinality
105 updateParentCardinality(newModel.getParentCardinalityUri());
106 updateChildCardinality(newModel.getChildCardinalityUri());
107 }
108
109 // ------------------------------------------------------------------------------------------------- Private Methods
110
111
112
113 // === Update ===
114
115 private void updateAssocTypeUri(AssociationDefinitionModel newModel) {
116 String newTypeUri = newModel.getTypeUri();
117 // abort if no update is requested
118 if (newTypeUri == null) {
119 return;
120 }
121 //
122 String typeUri = getTypeUri();
123 if (!typeUri.equals(newTypeUri)) {
124 super.update(newModel);
125 }
126 }
127
128 // ---
129
130 private void updateParentCardinality(String newParentCardinalityUri) {
131 // abort if no update is requested
132 if (newParentCardinalityUri == null) {
133 return;
134 }
135 //
136 String parentCardinalityUri = getParentCardinalityUri();
137 if (!parentCardinalityUri.equals(newParentCardinalityUri)) {
138 logger.info("### Changing parent cardinality URI from \"" + parentCardinalityUri + "\" -> \"" +
139 newParentCardinalityUri + "\"");
140 setParentCardinalityUri(newParentCardinalityUri);
141 }
142 }
143
144 private void updateChildCardinality(String newChildCardinalityUri) {
145 // abort if no update is requested
146 if (newChildCardinalityUri == null) {
147 return;
148 }
149 //
150 String childCardinalityUri = getChildCardinalityUri();
151 if (!childCardinalityUri.equals(newChildCardinalityUri)) {
152 logger.info("### Changing child cardinality URI from \"" + childCardinalityUri + "\" -> \"" +
153 newChildCardinalityUri + "\"");
154 setChildCardinalityUri(newChildCardinalityUri);
155 }
156 }
157
158
159
160 // === Attached Object Cache ===
161
162 private void initViewConfig() {
163 RoleModel configurable = dms.typeStorage.createConfigurableAssocDef(getId()); // ### ID is uninitialized
164 this.viewConfig = new AttachedViewConfiguration(configurable, getModel().getViewConfigModel(), dms);
165 }
166 }