Do not deserialize StringRedisConn pipeline/tx results by default

- Change StringRedisConn to not deserialize pipelined/
exec results by default

- Remove option to enable/disable deserialize of
results in StringRedisTemplate. In most cases, the
same StringRedisConn is not used b/w ops in a pipeline 
or tx, so this is rarely useful

src/main/java/org/springframework/data/redis/connection/DefaultStringRedisConnection.java

@@ -56,7 +56,7 @@ public class DefaultStringRedisConnection implements StringRedisConnection {
 	private Queue<Converter> pipelineConverters = new LinkedList<Converter>();
 	@SuppressWarnings("rawtypes")
 	private Queue<Converter> txConverters = new LinkedList<Converter>();
-	private boolean deserializePipelineAndTxResults = true;
+	private boolean deserializePipelineAndTxResults = false;
 	private IdentityConverter identityConverter = new IdentityConverter();
 
 	private class DeserializingConverter implements Converter<byte[],String> {

src/main/java/org/springframework/data/redis/core/StringRedisTemplate.java

@@ -34,8 +34,6 @@ import org.springframework.data.redis.serializer.StringRedisSerializer;
  */
 public class StringRedisTemplate extends RedisTemplate<String, String> {
 
-	private boolean deserializePipelineAndTxResults = true;
-
 	/**
 	 * Constructs a new <code>StringRedisTemplate</code> instance.
 	 * {@link #setConnectionFactory(RedisConnectionFactory)} and {@link #afterPropertiesSet()} still need to be called.
@@ -60,20 +58,7 @@ public class StringRedisTemplate extends RedisTemplate<String, String> {
 		afterPropertiesSet();
 	}
 
-	/**
-	 * Specifies if pipelined and tx results should be deserialized to Strings.
-	 * If false, results of {@link StringRedisConnection#closePipeline()} and {@link StringRedisConnection#exec()}
-	 * will be of the type returned by the underlying connection
-	 *
-	 * @param deserializePipelineAndTxResults Whether or not to deserialize pipeline and tx results
-	 */
-	public void setDeserializePipelineAndTxResults(boolean deserializePipelineAndTxResults) {
-		this.deserializePipelineAndTxResults = deserializePipelineAndTxResults;
-	}
-
 	protected RedisConnection preProcessConnection(RedisConnection connection, boolean existingConnection) {
-		DefaultStringRedisConnection stringConn =  new DefaultStringRedisConnection(connection);
-		stringConn.setDeserializePipelineAndTxResults(deserializePipelineAndTxResults);
-		return stringConn;
+		return new DefaultStringRedisConnection(connection);
 	}
 }

src/test/java/org/springframework/data/redis/connection/AbstractConnectionIntegrationTests.java

@@ -88,6 +88,7 @@ public abstract class AbstractConnectionIntegrationTests {
 	public void setUp() {
 		byteConnection = connectionFactory.getConnection();
 		connection = new DefaultStringRedisConnection(byteConnection);
+		((DefaultStringRedisConnection)connection).setDeserializePipelineAndTxResults(true);
 		initConnection();
 	}
 

src/test/java/org/springframework/data/redis/connection/DefaultStringRedisConnectionPipelineTests.java

@@ -37,6 +37,7 @@ public class DefaultStringRedisConnectionPipelineTests extends DefaultStringRedi
 	@Before
 	public void setUp() {
 		super.setUp();
+		connection.setDeserializePipelineAndTxResults(true);
 		when(nativeConnection.isPipelined()).thenReturn(true);
 	}
 

src/test/java/org/springframework/data/redis/connection/DefaultStringRedisConnectionTxTests.java

@@ -16,6 +16,7 @@ public class DefaultStringRedisConnectionTxTests extends DefaultStringRedisConne
 	@Before
 	public void setUp() {
 		super.setUp();
+		connection.setDeserializePipelineAndTxResults(true);
 		when(nativeConnection.isQueueing()).thenReturn(true);
 	}
 

src/test/java/org/springframework/data/redis/core/StringRedisTemplateTests.java

@@ -19,7 +19,6 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.springframework.data.redis.SpinBarrier.waitFor;
 
-import java.util.List;
 import java.util.concurrent.TimeUnit;
 
 import org.junit.After;
@@ -112,38 +111,4 @@ public class StringRedisTemplateTests {
 		});
 		assertEquals(value,"it");
 	}
-
-	@Test
-	public void testStringTemplateExecutePipelineResultsConverted() {
-		String result = redisTemplate.execute(new RedisCallback<String>() {
-			public String doInRedis(RedisConnection connection) {
-				StringRedisConnection stringConn = (StringRedisConnection) connection;
-				stringConn.openPipeline();
-				stringConn.set("foo", "bar");
-				stringConn.get("foo");
-				List<Object> results = stringConn.closePipeline();
-				return (String) results.get(0);
-			}
-		});
-		assertEquals("bar",result);
-	}
-
-	@Test
-	public void testStringTemplateExecutePipelineResultsNotConverted() {
-		final StringRedisTemplate template2 = new StringRedisTemplate(redisTemplate.getConnectionFactory());
-		template2.setDeserializePipelineAndTxResults(false);
-		template2.afterPropertiesSet();
-		String result = template2.execute(new RedisCallback<String>() {
-			public String doInRedis(RedisConnection connection) {
-				StringRedisConnection stringConn = (StringRedisConnection) connection;
-				stringConn.openPipeline();
-				stringConn.set("foo", "bar");
-				stringConn.get("foo");
-				List<Object> results = stringConn.closePipeline();
-				// Results should be in byte[], not deserialized to String
-				return template2.getStringSerializer().deserialize((byte[]) results.get(0));
-			}
-		});
-		assertEquals("bar",result);
-	}
 }