import com.google.common.base.Optional;
import com.google.common.primitives.UnsignedLong;
+/**
+ * An implementation of apply operation which fails to do anything,
+ * consistently. An instance of this class is used by the data tree
+ * if it does not have a SchemaContext attached and hence cannot
+ * perform anything meaningful.
+ */
final class AlwaysFailOperation implements ModificationApplyOperation {
-
@Override
public Optional<StoreMetadataNode> apply(final NodeModification modification,
final Optional<StoreMetadataNode> storeMeta, final UnsignedLong subtreeVersion) {
}
@Override
- public void verifyStructure(final NodeModification modification) throws IllegalArgumentException {
+ public void verifyStructure(final NodeModification modification) {
throw new IllegalStateException("Schema Context is not available.");
}
}
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