ObjectBox C/C++ database changelog

Changelog History

Page 2

• v0.10.0 Changes

  August 13, 2020

  C++ API queries and model classes for more feature-rich generated code.
  ⚡️ C-API cleanup & docs updates, including the following changes (some of them breaking, mostly due to renames):

  Misc

  • 🆕 new property type: DateNano for datetime with nanosecond precision
  • new store options obx_opt_*()
    • validate_on_open - to validate the database during openining
    • put_padding_mode - configure the padding used by your flatbuffers implementation
    • use_previous_commit - roll-back the database to the previously committed version
    • read_only - open the database in the read only mode
    • debug_flags - configure debug logging

  Cursor

  • remove obx_cursor2(), use obx_cursor() in combination with obx_store_entity_id()
  • rename obx_cursor_put_mode() to obx_cursor_put4()
  • obx_cursor_put() drops the last parameter checkForPreviousValue and introduced a complementary obx_cursor_put_new()
  • remove obx_cursor_put_padded()
  • rename obx_cursor_backlink_bytes() to obx_cursor_backlinks()
  • rename obx_cursor_ts_limits() to obx_cursor_ts_min_max()
  • rename obx_cursor_ts_limits_range() to obx_cursor_ts_min_max_range()

  Box

  • rename obx_box_put() to obx_box_put5()
  • rename obx_box_put_object() to obx_box_put_object4()
  • change obx_box_put_many to fail when any of the individual inserts/updates fails and new obx_box_put_many5() to override this behavior
  • new obx_box_store() to get access to OBX_store* owning the given box
  • new obx_box_insert() obx_box_update() for for insert and update semantics, same as put mode arg in obx_box_put5()
  • new obx_box_put() without a mode argument (defaults to PUT)
  • new obx_box_put_object() without a mode argument (defaults to PUT)
  • new obx_box_ts_min_max() for time-series databases
  • new obx_box_ts_min_max_range() for time-series databases

  Async

  • rename obx_async_put_mode() to obx_async_put5()
  • rename obx_async_id_put() to obx_async_put_object()
  • rename obx_async_id_insert() to obx_async_insert_object()

  🏗 Query builder

  • obx_qb_{type}{operation}() function naming changes to obx_qb{operation}_{type}(), e.g. obx_qb_int_equal() becomes obx_qb_equals_int()
  • obx_qb_{operation}_{type}() functions taking multiple arguments have an "s" at the end, indicating plural, e.g. obx_qb_in_int64s()
  • operation equal becomes equals, greater becomes greater_than, less becomes less_than
  • obx_qb_greater_than_string() drops with_equal argument in favor of the new obx_qb_greater_or_equal_string() function
  • obx_qb_less_than_string() drops with_equal argument in favor of the new obx_qb_less_or_equal_string() function
  • change obx_qb_in_strings() argument const char* values[] changes to const char* const values[],
    i.e. const array of const char pointers
  • obx_qb_greater_than_bytes() drops with_equal argument in favor of the new obx_qb_greater_or_equal_bytes() function
  • obx_qb_less_than_bytes() drops with_equal argument in favor of the new obx_qb_less_or_equal_bytes() function

  Query

  Limit and offset are now part of the query state instead of function arguments, therefore:

  • new obx_query_offset() and obx_query_limit() set persistent offset/limit for all future calls to other query functions
  • obx_query_find(), obx_query_visit(), obx_query_find_ids(), as well as the cursor alternatives,
    all drop offset and limit arguments
  • 🚚 note: some query functions, such as count/remove don't support non-zero offset/limit yet.
  • obx_query_{type}param() function naming changes to obx_query_param{type}(), e.g. obx_query_string_param()
    becomes obx_query_param_string() or obx_query_param_strings() for the plural variant
  • obx_query_{type}param_alias() function naming changes to obx_query_param_alias{type}(), e.g. obx_query_string_param_alias()
    becomes obx_query_param_alias_string()
  • obx_query_param_strings() and obx_query_param_alias_strings() argument const char* values[]
    🔄 changes to const char* const values[], i.e. const array of const char pointers
  • obx_query_prop_{type}find() function naming changes to obx_query_prop_find{type}s(), with an "s" indicating the return
    type is plural, e.g. obx_query_prop_find_strings
  • remove deprecated obx_query_prop_distinct_string()

• v0.9.2 Changes

  June 30, 2020

  • Rename obx_cursor_ts_limits() to obx_cursor_ts_min_max()
  • ➕ Add C++ APIs for query links and TS min/max

• v0.9.1 Changes

  June 23, 2020

  • C++ interface improvements:
    • "Box::getOptional()" overloads returning std::optional
    • "Box::put()" overloads taking vectors of std::unique_ptr and std::optional
    • Query methods: find(), findIds(), count(), remove(), ...
    • Ensure double-free can't happen (added explicit copy & move constructors)
  • 🛠 Fixed Windows exported symbols - recently added APIs were missing
  • New "obx_cursor_put_object4()" overload taking PutMode as an argument
  • Make *_close() functions consistently accept nullptr

  👀 See also the Generator companion project.
  (https://objectbox.io/introducing-objectbox-generator-plus-c-api/)

• v0.9.0 Changes

  June 18, 2020

  • 👀 C++ API added: see include/objectbox-cpp.h
  • 🎉 Initial time series support (ObjectBox TS only)
  • 🆕 New "put object" functions that e.g. handle ID assignment
  • Several internal improvements, e.g. query links are resolved faster

  👀 See also: https://objectbox.io/introducing-objectbox-generator-plus-c-api/

• v0.8.2 Changes

  January 13, 2020

  👌 Fix ARM build incorrectly returning TRUE in obx_supports_bytes_array()

• v0.8.1 Changes

  December 12, 2019

  • Bug fix for obx_box_rel_get_ids(), which did return wrong IDs in some cases (please update!)
  • Several refinements on property queries, for example:
    • Maintain floating point point semantics on aggregates, e.g. infinity + 1 == infinity (no overflow)
    • Allow aggregates on Date type properties
    • Return negative counts if results were obtained using a short cut (API change to int64_t*)

• v0.8.0 Changes

  December 05, 2019

  • Property queries compute sums and averages more precisely (improved algorithms and wider types)
  • Property queries now consider unsigned types
  • Added an additional out parameter for count obx_query_prop_*()
  • Added put alternatives to "put" with cursor: obx_cursor_insert() and obx_cursor_update()
  • Added obx_query_clone() to allow clones to run in parallel on separate threads

• v0.7.2 Changes

  October 30, 2019

  👍 Allows access to C API from Java lib starting from 2.4.1, minor fixes

• v0.7.1 Changes

  October 16, 2019

  🐎 Ordered queries: improved general performance and fixed a performance regression on 32 bit

• v0.7.0 Changes

  September 09, 2019

  • ➕ Added observers to listen to data changes (e.g. obx_observe())
  • Added obx_last_error_pop() to get and reset the last error
  • Added obx_box_rel_get_backlink_ids() to get backlinks of standalone relations
  • iOS and macOS related improvements; e.g. obx_posix_sem_prefix_set() for sand-boxed macOS apps
  • 👍 Better resilience for passing in NULL for many functions
  • 👌 Improved API docs
    • Quite a few functions got comments
    • Online API docs (Doxygen)
      
  • 🛠 Minor fixes

  (Breaking) Changes

  • obx_txn_success(txn) now also closes the transaction making a subsequent obx_txn_close(txn) unnecessary and illegal. Please adjust your code using one of two possibilities (depending on your code flow):
    • drop obx_txn_close(txn) after calling obx_txn_success(txn), or
    • replace obx_txn_success(txn) with obx_txn_mark_success(txn, true) if you want to keep obx_txn_close(txn)
  • Function renames to drop "create" postfix: obx_query_builder(), obx_query(), obx_cursor(), obx_model(), obx_bytes_array(), obx_id_array()
  • Property queries API clean up using a OBX_query_prop struct

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