Allow SnapshotBackedReadTransaction customization

[controller.git] / opendaylight / md-sal / sal-dom-spi / src / main / java / org / opendaylight / controller / sal / core / spi / data / SnapshotBackedTransactions.java

diff --git a/opendaylight/md-sal/sal-dom-spi/src/main/java/org/opendaylight/controller/sal/core/spi/data/SnapshotBackedTransactions.java b/opendaylight/md-sal/sal-dom-spi/src/main/java/org/opendaylight/controller/sal/core/spi/data/SnapshotBackedTransactions.java
index 3368c8aee101ad58b2eabd8d0b106613cf387d69..7a775e8341902c286a6055d04c5c53422c068d52 100644 (file)
--- a/opendaylight/md-sal/sal-dom-spi/src/main/java/org/opendaylight/controller/sal/core/spi/data/SnapshotBackedTransactions.java
+++ b/opendaylight/md-sal/sal-dom-spi/src/main/java/org/opendaylight/controller/sal/core/spi/data/SnapshotBackedTransactions.java
@@ -7,7 +7,10 @@
  */
 package org.opendaylight.controller.sal.core.spi.data;
 
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.annotations.Beta;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedReadTransaction.TransactionClosePrototype;
 import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
 
@@ -26,9 +29,25 @@ public final class SnapshotBackedTransactions {
      * @param identifier Transaction Identifier
      * @param debug Enable transaction debugging
      * @param snapshot Snapshot which will be modified.
+     * @return A new read-only transaction
      */
-    public static <T> SnapshotBackedReadTransaction<T> newReadTransaction(final T identifier, final boolean debug, final DataTreeSnapshot snapshot) {
-        return new SnapshotBackedReadTransaction<T>(identifier, debug, snapshot);
+    public static <T> SnapshotBackedReadTransaction<T> newReadTransaction(final T identifier, final boolean debug,
+            final DataTreeSnapshot snapshot) {
+        return new SnapshotBackedReadTransaction<>(identifier, debug, snapshot, null);
+    }
+
+    /**
+     * Creates a new read-only transaction.
+     *
+     * @param identifier Transaction Identifier
+     * @param debug Enable transaction debugging
+     * @param snapshot Snapshot which will be modified.
+     * @param closeImpl Implementation of close method
+     * @return A new read-only transaction
+     */
+    public static <T> SnapshotBackedReadTransaction<T> newReadTransaction(final T identifier,
+            final boolean debug, final DataTreeSnapshot snapshot, final TransactionClosePrototype<T> closeImpl) {
+        return new SnapshotBackedReadTransaction<>(identifier, debug, snapshot, requireNonNull(closeImpl));
     }
 
     /**
@@ -38,10 +57,11 @@ public final class SnapshotBackedTransactions {
      * @param debug Enable transaction debugging
      * @param snapshot Snapshot which will be modified.
      * @param readyImpl Implementation of ready method.
+     * @return A new read-write transaction
      */
-    public static <T> SnapshotBackedReadWriteTransaction<T> newReadWriteTransaction(final T identifier, final boolean debug,
-            final DataTreeSnapshot snapshot, final TransactionReadyPrototype<T> readyImpl) {
-        return new SnapshotBackedReadWriteTransaction<T>(identifier, debug, snapshot, readyImpl);
+    public static <T> SnapshotBackedReadWriteTransaction<T> newReadWriteTransaction(final T identifier,
+            final boolean debug, final DataTreeSnapshot snapshot, final TransactionReadyPrototype<T> readyImpl) {
+        return new SnapshotBackedReadWriteTransaction<>(identifier, debug, snapshot, readyImpl);
     }
 
     /**
@@ -51,9 +71,10 @@ public final class SnapshotBackedTransactions {
      * @param debug Enable transaction debugging
      * @param snapshot Snapshot which will be modified.
      * @param readyImpl Implementation of ready method.
+     * @return A new write transaction
      */
     public static <T> SnapshotBackedWriteTransaction<T> newWriteTransaction(final T identifier, final boolean debug,
             final DataTreeSnapshot snapshot, final TransactionReadyPrototype<T> readyImpl) {
-        return new SnapshotBackedWriteTransaction<T>(identifier, debug, snapshot, readyImpl);
+        return new SnapshotBackedWriteTransaction<>(identifier, debug, snapshot, readyImpl);
     }
 }