diff options
Diffstat (limited to 'infra/translate-spi/src/main/java/io/fd')
| -rw-r--r-- | infra/translate-spi/src/main/java/io/fd/honeycomb/translate/spi/read/ReaderCustomizer.java | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/infra/translate-spi/src/main/java/io/fd/honeycomb/translate/spi/read/ReaderCustomizer.java b/infra/translate-spi/src/main/java/io/fd/honeycomb/translate/spi/read/ReaderCustomizer.java index acfabf5bc..738431eea 100644 --- a/infra/translate-spi/src/main/java/io/fd/honeycomb/translate/spi/read/ReaderCustomizer.java +++ b/infra/translate-spi/src/main/java/io/fd/honeycomb/translate/spi/read/ReaderCustomizer.java @@ -57,4 +57,19 @@ public interface ReaderCustomizer<O extends DataObject, B extends Builder<O>> { void merge(@Nonnull final Builder<? extends DataObject> parentBuilder, @Nonnull final O readValue); + /** + * Check whether the resulting value should be added to the results or ignored. + * Invoked after {@link #readCurrentAttributes(InstanceIdentifier, Builder, ReadContext)} + * + * @param id Keyed instance identifier of read data + * @param built Read data as returned from builder + * after {@link #readCurrentAttributes(InstanceIdentifier, Builder, ReadContext)} invocation + * @param ctx Read context + * + * @return true if value is present (even if empty) + */ + default boolean isPresent(final InstanceIdentifier<O> id, final O built, final ReadContext ctx) throws ReadFailedException { + // Default impl = check whether read value is empty + return !built.equals(getBuilder(id).build()); + } } |