small improvements

h2/src/tools/oracle/toplink/essentials/platform/database/H2Platform.java.txt

@@ -21,16 +21,14 @@
 // Copyright (c) 1998, 2006, Oracle. All rights reserved.
 package oracle.toplink.essentials.platform.database;
 
-import java.util.*;
-import java.io.*;
-import java.sql.*;
-import oracle.toplink.essentials.exceptions.*;
-import oracle.toplink.essentials.queryframework.*;
-import oracle.toplink.essentials.internal.helper.*;
-import oracle.toplink.essentials.expressions.*;
-import oracle.toplink.essentials.internal.expressions.*;
-import oracle.toplink.essentials.internal.databaseaccess.*;
-import oracle.toplink.essentials.internal.sessions.AbstractSession;
+import java.io.IOException;
+import java.io.Writer;
+import java.util.Hashtable;
+
+import oracle.toplink.essentials.exceptions.ValidationException;
+import oracle.toplink.essentials.expressions.ExpressionOperator;
+import oracle.toplink.essentials.internal.databaseaccess.FieldTypeDefinition;
+import oracle.toplink.essentials.queryframework.ValueReadQuery;
 
 /**
  * This platform provides H2 specific behaviour.
@@ -48,12 +46,9 @@ import oracle.toplink.essentials.internal.sessions.AbstractSession;
  * @author Marcio Borges (http://www.marciowb.net/blog/2008_08_01_)
  */
 public class H2Platform extends DatabasePlatform {
-    public H2Platform() {
-    }
     
     protected Hashtable buildFieldTypes() {
         Hashtable fieldTypeMapping;
-
         fieldTypeMapping = super.buildFieldTypes();
         fieldTypeMapping.put(Boolean.class, new FieldTypeDefinition("TINYINT", false));
         fieldTypeMapping.put(Integer.class, new FieldTypeDefinition("INTEGER", false));
@@ -74,15 +69,9 @@ public class H2Platform extends DatabasePlatform {
         fieldTypeMapping.put(java.sql.Date.class, new FieldTypeDefinition("DATE", false));
         fieldTypeMapping.put(java.sql.Time.class, new FieldTypeDefinition("TIME", false));
         fieldTypeMapping.put(java.sql.Timestamp.class, new FieldTypeDefinition("TIMESTAMP", false));
-
         return fieldTypeMapping;
     }
 
-
-    // public boolean isHSQL() {
-    //     return true;
-    // }
-
     public boolean isH2() {
         return true;
     }
@@ -100,8 +89,6 @@ public class H2Platform extends DatabasePlatform {
         buff.append(")");
         String sql = buff.toString();
         return new ValueReadQuery(sql);
-        // return new ValueReadQuery("CALL NEXT VALUE FOR " + getQualifiedSequenceName(seqName));
-        // return new ValueReadQuery("SELECT " + getQualifiedSequenceName(seqName) + ".NEXTVAL FROM DUAL");
     }
 
     public boolean supportsNativeSequenceNumbers() {
@@ -111,9 +98,8 @@ public class H2Platform extends DatabasePlatform {
     protected String getQualifiedSequenceName(String seqName) {
         if (getTableQualifier().equals("")) {
             return seqName;
-        } else {
-            return getTableQualifier() + "." + seqName;
         }
+        return getTableQualifier() + "." + seqName;
     }
 
     public boolean supportsSelectForUpdateNoWait() {
@@ -141,4 +127,12 @@ public class H2Platform extends DatabasePlatform {
         return new ValueReadQuery("SELECT IDENTITY()");
     }
     
+    public void printFieldIdentityClause(Writer writer) throws ValidationException {
+        try {
+            writer.write(" IDENTITY");
+        } catch (final IOException ioException) {
+            throw ValidationException.fileError(ioException);
+        }
+    }
+
 }