Add maxInBinding - Oracle support for large delete by ids

ebean-core/src/main/java/io/ebeaninternal/server/persist/DefaultPersister.java

@@ -1,7 +1,6 @@
 package io.ebeaninternal.server.persist;
 
 import io.ebean.*;
-import io.ebean.annotation.Platform;
 import io.ebean.bean.BeanCollection;
 import io.ebean.bean.BeanCollection.ModifyListenMode;
 import io.ebean.bean.EntityBean;
@@ -42,15 +41,15 @@ public final class DefaultPersister implements Persister {
    * Actually does the persisting work.
    */
   private final PersistExecute persistExecute;
-
   private final SpiEbeanServer server;
-
   private final BeanDescriptorManager beanDescriptorManager;
+  private final int maxInBinding;
 
   public DefaultPersister(SpiEbeanServer server, Binder binder, BeanDescriptorManager descMgr) {
     this.server = server;
     this.beanDescriptorManager = descMgr;
     this.persistExecute = new DefaultPersistExecute(binder, server.config().getPersistBatchSize());
+    this.maxInBinding = server.databasePlatform().getMaxInBinding();
   }
 
   @Override
@@ -645,18 +644,18 @@ public final class DefaultPersister implements Persister {
     DeleteMode deleteMode = (permanent || !descriptor.isSoftDelete()) ? DeleteMode.HARD : DeleteMode.SOFT;
     return delete(descriptor, null, idList, transaction, deleteMode);
   }
-  
+
   /**
    * Delete by Id or a List of Id's.
    */
   private int delete(BeanDescriptor<?> descriptor, Object id, List<Object> idList, Transaction transaction, DeleteMode deleteMode) {
     int rows = 0;
-    if (server.databasePlatform().isPlatform(Platform.SQLSERVER)) {
+    if (maxInBinding > 0) {
       // SqlServer has a 2100 parameter limit, so delete max 2000 ids at once
       // this gives space up to 100 more query parameters.
-      while (idList != null && idList.size() > 2000) {
-        rows += deleteBatch(descriptor, id, idList.subList(0, 2000), transaction, deleteMode);
-        idList = idList.subList(2000, idList.size());
+      while (idList != null && idList.size() > maxInBinding) {
+        rows += deleteBatch(descriptor, id, idList.subList(0, maxInBinding), transaction, deleteMode);
+        idList = idList.subList(maxInBinding, idList.size());
       }
     }
     rows += deleteBatch(descriptor, id, idList, transaction, deleteMode);