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 import de.deepamehta.core.service.ClientState;
009 import de.deepamehta.core.service.Directives;
010
011 import java.util.logging.Logger;
012
013
014
015 /**
016 * An association definition that is attached to the {@link DeepaMehtaService}.
017 */
018 class AttachedAssociationDefinition extends AttachedAssociation implements AssociationDefinition {
019
020 // ---------------------------------------------------------------------------------------------- Instance Variables
021
022 private AttachedViewConfiguration viewConfig; // attached object cache
023
024 private Logger logger = Logger.getLogger(getClass().getName());
025
026 // ---------------------------------------------------------------------------------------------------- Constructors
027
028 AttachedAssociationDefinition(AssociationDefinitionModel model, EmbeddedService dms) {
029 super(model, dms);
030 initViewConfig();
031 }
032
033 // -------------------------------------------------------------------------------------------------- Public Methods
034
035
036
037 // ********************************************
038 // *** AssociationDefinition Implementation ***
039 // ********************************************
040
041
042
043 @Override
044 public String getInstanceLevelAssocTypeUri() {
045 return getModel().getInstanceLevelAssocTypeUri();
046 }
047
048 @Override
049 public String getParentTypeUri() {
050 return getModel().getParentTypeUri();
051 }
052
053 @Override
054 public String getChildTypeUri() {
055 return getModel().getChildTypeUri();
056 }
057
058 @Override
059 public String getParentCardinalityUri() {
060 return getModel().getParentCardinalityUri();
061 }
062
063 @Override
064 public String getChildCardinalityUri() {
065 return getModel().getChildCardinalityUri();
066 }
067
068 @Override
069 public ViewConfiguration getViewConfig() {
070 return viewConfig;
071 }
072
073 // ---
074
075 @Override
076 public AssociationDefinitionModel getModel() {
077 return (AssociationDefinitionModel) super.getModel();
078 }
079
080 // ---
081
082 @Override
083 public void setParentCardinalityUri(String parentCardinalityUri, ClientState clientState, Directives directives) {
084 // update memory
085 getModel().setParentCardinalityUri(parentCardinalityUri);
086 // update DB
087 dms.typeStorage.storeParentCardinalityUri(getId(), parentCardinalityUri);
088 }
089
090 @Override
091 public void setChildCardinalityUri(String childCardinalityUri, ClientState clientState, Directives directives) {
092 // update memory
093 getModel().setChildCardinalityUri(childCardinalityUri);
094 // update DB
095 dms.typeStorage.storeChildCardinalityUri(getId(), childCardinalityUri);
096 }
097
098
099
100 // === Updating ===
101
102 @Override
103 public void update(AssociationDefinitionModel newModel, ClientState clientState, Directives directives) {
104 // assoc type
105 updateAssocTypeUri(newModel, clientState, directives);
106 // cardinality
107 updateParentCardinality(newModel.getParentCardinalityUri(), clientState, directives);
108 updateChildCardinality(newModel.getChildCardinalityUri(), clientState, directives);
109 }
110
111 // ------------------------------------------------------------------------------------------------- Private Methods
112
113
114
115 // === Update ===
116
117 private void updateAssocTypeUri(AssociationDefinitionModel newModel, ClientState clientState,
118 Directives directives) {
119 String newTypeUri = newModel.getTypeUri();
120 if (newTypeUri == null) {
121 return;
122 }
123 //
124 String typeUri = getTypeUri();
125 if (!typeUri.equals(newTypeUri)) {
126 super.update(newModel, clientState, directives);
127 }
128 }
129
130 // ---
131
132 private void updateParentCardinality(String newParentCardinalityUri, ClientState clientState,
133 Directives directives) {
134 if (newParentCardinalityUri == null) {
135 return;
136 }
137 //
138 String parentCardinalityUri = getParentCardinalityUri();
139 if (!parentCardinalityUri.equals(newParentCardinalityUri)) {
140 logger.info("### Changing parent cardinality URI from \"" + parentCardinalityUri + "\" -> \"" +
141 newParentCardinalityUri + "\"");
142 setParentCardinalityUri(newParentCardinalityUri, clientState, directives);
143 }
144 }
145
146 private void updateChildCardinality(String newChildCardinalityUri, ClientState clientState,
147 Directives directives) {
148 if (newChildCardinalityUri == null) {
149 return;
150 }
151 //
152 String childCardinalityUri = getChildCardinalityUri();
153 if (!childCardinalityUri.equals(newChildCardinalityUri)) {
154 logger.info("### Changing child cardinality URI from \"" + childCardinalityUri + "\" -> \"" +
155 newChildCardinalityUri + "\"");
156 setChildCardinalityUri(newChildCardinalityUri, clientState, directives);
157 }
158 }
159
160
161
162 // === Attached Object Cache ===
163
164 private void initViewConfig() {
165 RoleModel configurable = dms.typeStorage.createConfigurableAssocDef(getId()); // ### ID is uninitialized
166 this.viewConfig = new AttachedViewConfiguration(configurable, getModel().getViewConfigModel(), dms);
167 }
168 }