diff options
Diffstat (limited to 'src/main/java/com/amazon/carbonado')
| -rw-r--r-- | src/main/java/com/amazon/carbonado/raw/GenericStorableCodec.java | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/src/main/java/com/amazon/carbonado/raw/GenericStorableCodec.java b/src/main/java/com/amazon/carbonado/raw/GenericStorableCodec.java index 8113b32..54eca76 100644 --- a/src/main/java/com/amazon/carbonado/raw/GenericStorableCodec.java +++ b/src/main/java/com/amazon/carbonado/raw/GenericStorableCodec.java @@ -708,9 +708,10 @@ public class GenericStorableCodec<S extends Storable> implements StorableCodec<S private Decoder<S> generateDecoder(int generation) throws FetchException {
// Create an encoding strategy against the reconstructed storable.
+ Class<? extends Storable> altStorable;
GenericEncodingStrategy<? extends Storable> altStrategy;
try {
- Class<? extends Storable> altStorable = mLayout.getGeneration(generation)
+ altStorable = mLayout.getGeneration(generation)
.reconstruct(mStorableClass.getClassLoader());
altStrategy = mFactory.createStrategy(altStorable, null);
} catch (RepositoryException e) {
@@ -758,6 +759,45 @@ public class GenericStorableCodec<S extends Storable> implements StorableCodec<S throw new CorruptEncodingException(e);
}
+ // Clear all properties available in the current generation which
+ // aren't in the alt generation.
+
+ Map<String, ? extends StorableProperty> currentProps =
+ StorableIntrospector.examine(mType).getAllProperties();
+
+ Map<String, ? extends StorableProperty> altProps =
+ StorableIntrospector.examine(altStorable).getAllProperties();
+
+ for (StorableProperty prop : currentProps.values()) {
+ if (altProps.keySet().contains(prop.getName())) {
+ continue;
+ }
+
+ b.loadLocal(destVar);
+
+ TypeDesc propType = TypeDesc.forClass(prop.getType());
+
+ switch (propType.getTypeCode()) {
+ case TypeDesc.OBJECT_CODE:
+ b.loadNull();
+ break;
+ case TypeDesc.LONG_CODE:
+ b.loadConstant(0L);
+ break;
+ case TypeDesc.FLOAT_CODE:
+ b.loadConstant(0.0f);
+ break;
+ case TypeDesc.DOUBLE_CODE:
+ b.loadConstant(0.0d);
+ break;
+ default:
+ b.loadConstant(0);
+ break;
+ }
+
+ b.storeField(destVar.getType(), prop.getName(), propType);
+ }
+
b.returnVoid();
Class<? extends Decoder> clazz = ci.defineClass(cf);
|