#762 - Change H2 Platform to IDENTITY (from SEQUENCE) with version 1.4.192

pom.xml

@@ -177,7 +177,7 @@
     <dependency>
       <groupId>com.h2database</groupId>
       <artifactId>h2</artifactId>
-      <version>1.4.189</version>
+      <version>1.4.192</version>
       <scope>provided</scope>
     </dependency>
     

src/main/java/com/avaje/ebean/config/dbplatform/H2Platform.java

@@ -4,6 +4,7 @@ import com.avaje.ebean.BackgroundExecutor;
 import com.avaje.ebean.dbmigration.ddlgeneration.platform.H2Ddl;
 
 import javax.sql.DataSource;
+import java.util.Properties;
 
 /**
  * H2 specific platform.
@@ -19,9 +20,7 @@ public class H2Platform extends DatabasePlatform {
     this.nativeUuidType = true;
     this.dbDefaultValue.setNow("now()");
 
-    // only support getGeneratedKeys with non-batch JDBC
-    // so generally use SEQUENCE instead of IDENTITY for H2
-    this.dbIdentity.setIdType(IdType.SEQUENCE);
+    this.dbIdentity.setIdType(IdType.IDENTITY);
     this.dbIdentity.setSupportsGetGeneratedKeys(true);
     this.dbIdentity.setSupportsSequence(true);
     this.dbIdentity.setSupportsIdentity(true);
@@ -34,6 +33,15 @@ public class H2Platform extends DatabasePlatform {
     // so no changes to dbTypeMap required
   }
 
+  @Override
+  public void configure(Properties properties) {
+    super.configure(properties);
+    String idType = properties.getProperty("ebean.h2.idtype");
+    if (idType != null) {
+      this.dbIdentity.setIdType(IdType.valueOf(idType));
+    }
+  }
+
   /**
    * Return a H2 specific sequence IdGenerator that supports batch fetching
    * sequence values.

src/test/resources/ebean.properties

@@ -21,6 +21,8 @@ datasource.default=h2
 
 #ebean.persistBatch=NONE
 
+#ebean.h2.idType=SEQUENCE
+
 ebean.currentUserProvider=com.avaje.ebean.MyCurrentUserProvider
 #ebean.expressionNativeIlike=true
 #ebean.jsonInclude=NON_NULL