From 9f5e44d05f978455408e2739aee236658085bd31 Mon Sep 17 00:00:00 2001
From: Michael Dick <mikedd@apache.org>
Date: Thu, 14 Oct 2010 01:08:41 +0000
Subject: [PATCH] OPENJPA-1699: Streaming LOB support for DB2 > Submitted by
 Heath Thomann, based on Fay's patch for trunk

git-svn-id: https://svn.apache.org/repos/asf/openjpa/branches/2.0.x@1022338 13f79535-47bb-0310-9956-ffa450edef68
---
 .../openjpa/jdbc/sql/DB2Dictionary.java       | 33 +++++++++++++++++--
 .../jdbc/meta/strats/AbstractLobTest.java     |  4 ++-
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
index 49d737685..2fb37e8fa 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
@@ -19,6 +19,8 @@
 package org.apache.openjpa.jdbc.sql;
 
 import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.io.Reader;
 import java.lang.reflect.Method;
 import java.sql.Blob;
 import java.sql.Connection;
@@ -29,12 +31,11 @@ import java.sql.SQLException;
 import java.sql.Statement;
 import java.sql.Types;
 import java.util.Arrays;
-import java.util.Set;
 import java.util.StringTokenizer;
 
 import org.apache.openjpa.jdbc.identifier.DBIdentifier;
-import org.apache.openjpa.jdbc.identifier.QualifiedDBIdentifier;
 import org.apache.openjpa.jdbc.kernel.JDBCFetchConfiguration;
+import org.apache.openjpa.jdbc.kernel.JDBCStore;
 import org.apache.openjpa.jdbc.kernel.exps.FilterValue;
 import org.apache.openjpa.jdbc.kernel.exps.Lit;
 import org.apache.openjpa.jdbc.kernel.exps.Param;
@@ -939,6 +940,34 @@ public class DB2Dictionary
     String nullSafe(String s) {
         return s == null ? "" : s;
     }
+    
+    public void insertBlobForStreamingLoad(Row row, Column col, 
+            JDBCStore store, Object ob, Select sel) throws SQLException {
+        if (ob != null) {
+            row.setBinaryStream(col, (InputStream)ob, -1);
+        } else {
+            row.setNull(col);
+        }
+    }
+
+    public void insertClobForStreamingLoad(Row row, Column col, Object ob)
+    throws SQLException {
+        if (ob != null) {
+            row.setCharacterStream(col, (Reader)ob, -1);
+        } else {
+            row.setNull(col);
+        }
+    }
+
+    public void updateBlob(Select sel, JDBCStore store, InputStream is)
+        throws SQLException {
+        //NO-OP
+    }
+
+    public void updateClob(Select sel, JDBCStore store, Reader reader)
+        throws SQLException {
+        //NO-OP
+    }    
 
     @Override
     public boolean isFatalException(int subtype, SQLException ex) {
diff --git a/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/jdbc/meta/strats/AbstractLobTest.java b/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/jdbc/meta/strats/AbstractLobTest.java
index aa743e543..2bf2bbbec 100644
--- a/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/jdbc/meta/strats/AbstractLobTest.java
+++ b/openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/jdbc/meta/strats/AbstractLobTest.java
@@ -30,6 +30,7 @@ import javax.persistence.Query;
 import org.apache.commons.lang.StringUtils;
 import org.apache.openjpa.conf.OpenJPAConfiguration;
 import org.apache.openjpa.datacache.DataCachePCData;
+import org.apache.openjpa.jdbc.sql.DB2Dictionary;
 import org.apache.openjpa.jdbc.sql.DBDictionary;
 import org.apache.openjpa.jdbc.sql.MySQLDictionary;
 import org.apache.openjpa.jdbc.sql.OracleDictionary;
@@ -50,7 +51,8 @@ public abstract class AbstractLobTest extends SingleEMFTestCase {
 
     protected List<Class<? extends DBDictionary>> supportedDatabases =
         new ArrayList<Class<? extends DBDictionary>>
-            (Arrays.asList(MySQLDictionary.class, OracleDictionary.class, SQLServerDictionary.class));
+            (Arrays.asList(MySQLDictionary.class, OracleDictionary.class, SQLServerDictionary.class, 
+            		DB2Dictionary.class));
         
     public void setUp() throws Exception {
         setSupportedDatabases(supportedDatabases.toArray(new Class<?>[] {}));