#1397 - @DbForeignKey(noConstraint = true) is ignored on @ManyToMany ... foreign constraints still added

src/main/java/io/ebeaninternal/dbmigration/model/build/ModelBuildIntersectionTable.java

@@ -5,6 +5,7 @@ import io.ebeaninternal.dbmigration.model.MTable;
 import io.ebeaninternal.server.deploy.BeanDescriptor;
 import io.ebeaninternal.server.deploy.BeanProperty;
 import io.ebeaninternal.server.deploy.BeanPropertyAssocMany;
+import io.ebeaninternal.server.deploy.PropertyForeignKey;
 import io.ebeaninternal.server.deploy.TableJoin;
 import io.ebeaninternal.server.deploy.TableJoinColumn;
 
@@ -48,10 +49,12 @@ class ModelBuildIntersectionTable {
 
   private void buildFkConstraints() {
 
-    ctx.fkeyBuilder(intersectionTable)
-      .addForeignKey(manyProp.getBeanDescriptor(), intersectionTableJoin, true)
-      .addForeignKey(manyProp.getTargetDescriptor(), tableJoin, false);
-
+    PropertyForeignKey foreignKey = manyProp.getForeignKey();
+    if (foreignKey == null || !foreignKey.isNoConstraint()) {
+      ctx.fkeyBuilder(intersectionTable)
+        .addForeignKey(manyProp.getBeanDescriptor(), intersectionTableJoin, true)
+        .addForeignKey(manyProp.getTargetDescriptor(), tableJoin, false);
+    }
     intersectionTable.checkDuplicateForeignKeys();
   }
 

src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssoc.java

@@ -65,6 +65,8 @@ public abstract class BeanPropertyAssoc<T> extends BeanProperty implements STree
    */
   final TableJoin tableJoin;
 
+  final PropertyForeignKey foreignKey;
+
   /**
    * The type of the joined bean.
    */
@@ -90,6 +92,7 @@ public abstract class BeanPropertyAssoc<T> extends BeanProperty implements STree
    */
   public BeanPropertyAssoc(BeanDescriptor<?> descriptor, DeployBeanPropertyAssoc<T> deploy) {
     super(descriptor, deploy);
+    this.foreignKey = deploy.getForeignKey();
     this.extraWhere = InternString.intern(deploy.getExtraWhere());
     this.beanTable = deploy.getBeanTable();
     this.mappedBy = InternString.intern(deploy.getMappedBy());
@@ -128,6 +131,13 @@ public abstract class BeanPropertyAssoc<T> extends BeanProperty implements STree
     return fetchPreference;
   }
 
+  /**
+   * Return the extra configuration for the foreign key.
+   */
+  public PropertyForeignKey getForeignKey() {
+    return foreignKey;
+  }
+
   /**
    * Create a ElPropertyValue for a *ToOne or *ToMany.
    */

src/main/java/io/ebeaninternal/server/deploy/BeanPropertyAssocOne.java

@@ -44,8 +44,6 @@ public class BeanPropertyAssocOne<T> extends BeanPropertyAssoc<T> implements STr
 
   private final boolean primaryKeyExport;
 
-  private final PropertyForeignKey foreignKey;
-
   private AssocOneHelp localHelp;
 
   protected final BeanProperty[] embeddedProps;
@@ -73,8 +71,6 @@ public class BeanPropertyAssocOne<T> extends BeanPropertyAssoc<T> implements STr
                               DeployBeanPropertyAssocOne<T> deploy) {
 
     super(descriptor, deploy);
-
-    foreignKey = deploy.getForeignKey();
     primaryKeyExport = deploy.isPrimaryKeyExport();
     oneToOne = deploy.isOneToOne();
     oneToOneExported = deploy.isOneToOneExported();
@@ -323,10 +319,6 @@ public class BeanPropertyAssocOne<T> extends BeanPropertyAssoc<T> implements STr
     }
   }
 
-  public PropertyForeignKey getForeignKey() {
-    return foreignKey;
-  }
-
   public boolean hasForeignKey() {
     return foreignKey == null || !foreignKey.isNoConstraint();
   }

src/main/java/io/ebeaninternal/server/deploy/meta/DeployBeanPropertyAssoc.java

@@ -2,6 +2,7 @@ package io.ebeaninternal.server.deploy.meta;
 
 import io.ebeaninternal.server.deploy.BeanCascadeInfo;
 import io.ebeaninternal.server.deploy.BeanTable;
+import io.ebeaninternal.server.deploy.PropertyForeignKey;
 
 /**
  * Abstract base for properties mapped to an associated bean, list, set or map.
@@ -16,7 +17,7 @@ public abstract class DeployBeanPropertyAssoc<T> extends DeployBeanProperty {
   /**
    * Persist settings.
    */
-  protected final BeanCascadeInfo cascadeInfo = new BeanCascadeInfo();
+  final BeanCascadeInfo cascadeInfo = new BeanCascadeInfo();
 
   /**
    * The join table information.
@@ -42,6 +43,8 @@ public abstract class DeployBeanPropertyAssoc<T> extends DeployBeanProperty {
 
   private int fetchPreference = 1000;
 
+  private PropertyForeignKey foreignKey;
+
   /**
    * Construct the property.
    */
@@ -117,6 +120,13 @@ public abstract class DeployBeanPropertyAssoc<T> extends DeployBeanProperty {
     return cascadeInfo;
   }
 
+  public void setForeignKey(PropertyForeignKey foreignKey) {
+    this.foreignKey = foreignKey;
+  }
+
+  public PropertyForeignKey getForeignKey() {
+    return foreignKey;
+  }
 
   /**
    * Return the mappedBy deployment attribute.

src/main/java/io/ebeaninternal/server/deploy/meta/DeployBeanPropertyAssocOne.java

@@ -1,6 +1,5 @@
 package io.ebeaninternal.server.deploy.meta;
 
-import io.ebeaninternal.server.deploy.PropertyForeignKey;
 import io.ebeaninternal.server.query.SqlJoinType;
 
 import javax.persistence.CascadeType;
@@ -22,8 +21,6 @@ public class DeployBeanPropertyAssocOne<T> extends DeployBeanPropertyAssoc<T> {
 
   private String columnPrefix;
 
-  private PropertyForeignKey foreignKey;
-
   private boolean orphanRemoval;
 
   /**
@@ -148,14 +145,6 @@ public class DeployBeanPropertyAssocOne<T> extends DeployBeanPropertyAssoc<T> {
     }
   }
 
-  public void setForeignKey(PropertyForeignKey foreignKey) {
-    this.foreignKey = foreignKey;
-  }
-
-  public PropertyForeignKey getForeignKey() {
-    return foreignKey;
-  }
-
   public void setOrphanRemoval(boolean orphanRemoval) {
     this.orphanRemoval = orphanRemoval;
   }

src/main/java/io/ebeaninternal/server/deploy/parse/AnnotationAssocManys.java

@@ -1,5 +1,6 @@
 package io.ebeaninternal.server.deploy.parse;
 
+import io.ebean.annotation.DbForeignKey;
 import io.ebean.annotation.FetchPreference;
 import io.ebean.annotation.HistoryExclude;
 import io.ebean.annotation.PrivateOwned;
@@ -12,6 +13,7 @@ import io.ebean.util.StringHelper;
 import io.ebeaninternal.server.deploy.BeanDescriptorManager;
 import io.ebeaninternal.server.deploy.BeanProperty;
 import io.ebeaninternal.server.deploy.BeanTable;
+import io.ebeaninternal.server.deploy.PropertyForeignKey;
 import io.ebeaninternal.server.deploy.meta.DeployBeanDescriptor;
 import io.ebeaninternal.server.deploy.meta.DeployBeanProperty;
 import io.ebeaninternal.server.deploy.meta.DeployBeanPropertyAssocMany;
@@ -95,6 +97,12 @@ class AnnotationAssocManys extends AnnotationParser {
       readElementCollection(prop, elementCollection);
     }
 
+    // for ManyToMany typically to disable foreign keys from intersection table
+    DbForeignKey dbForeignKey = get(prop, DbForeignKey.class);
+    if (dbForeignKey != null){
+      prop.setForeignKey(new PropertyForeignKey(dbForeignKey));
+    }
+
     if (get(prop, HistoryExclude.class) != null) {
       prop.setExcludedFromHistory();
     }