@Override
public List<FieldDeclaration> getFields(EmitContext context, ModelDeclaration model)
throws IOException {
if (isTarget(model) == false) {
return Collections.emptyList();
}
CacheSupportTrait trait = model.getTrait(CacheSupportTrait.class);
assert trait != null;
List<FieldDeclaration> results = Lists.create();
if (trait.getDeleteFlagValue() != null) {
results.add(createDeleteFlagValueField(context, model, trait.getDeleteFlagValue()));
}
return results;
}
@Override
public List<MethodDeclaration> getMethods(EmitContext context, ModelDeclaration model)
throws IOException {
if (isTarget(model) == false) {
return Collections.emptyList();
}
CacheSupportTrait trait = model.getTrait(CacheSupportTrait.class);
assert trait != null;
List<MethodDeclaration> results = Lists.create();
results.add(createModelVersionMethod(context, model, trait));
results.add(createTimestampColumnMethod(context, model, trait.getTimestamp()));
results.add(createSystemIdMethod(context, model, trait.getSid()));
results.add(createDeletedMethod(context, model, trait.getDeleteFlag()));
return results;
}
private long computeModelVersion(
EmitContext context, ModelDeclaration model, CacheSupportTrait trait) {
assert context != null;
assert model != null;
assert trait != null;
long hash = 1;
final long prime = 31;
hash = hash * prime + context.getQualifiedTypeName().toNameString().hashCode();
hash = hash * prime + trait.getSid().getName().identifier.hashCode();
hash = hash * prime + trait.getTimestamp().getName().identifier.hashCode();
for (PropertyDeclaration property : model.getDeclaredProperties()) {
hash = hash * prime + property.getName().identifier.hashCode();
com.asakusafw.dmdl.semantics.Type type = property.getType();
assert type instanceof BasicType;
hash = hash * prime + ((BasicType) type).getKind().name().hashCode();
}
return hash;
}