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--- transformations:synchronize [2016/11/30 10:16] – dmitry
+++ transformations:synchronize [2021/07/17 23:59] (current) – craigt
@@ Line 1: / Line 1: @@
-===== Synchronize with another table =====
+{{ transformations:SynchronizeAction.png}}
+====== SYNCHRONIZE ======
+Category: Workflow / Internal \\
-Wait until last transformation of another table is calculated.
+\\
+=====Description=====
+This action pauses the current action chain until the last action of another table is calculated.\\
-This transformation is usually used for synchronization of access to external files and applications in order to avoid simultaneous reading/writing by independent transformation chains. In a typical use case it is inserted immediately before a side-effect transformation (export, run program, etc.). As EasyMorph calculates independent transformation chains asynchronously, Synchronize is used to enforce a dependency and guarantee a particular execution order.
+\\
+=====Use cases=====
+This action is usually used for synchronization of access to external files and applications in order to avoid simultaneous reading/writing by independent action chains. In a typical use case, it is inserted immediately before a side-effect action (export, run program, etc.). As EasyMorph calculates independent action chains asynchronously, //Synchronize// is used to enforce a dependency and guarantee a particular execution order.
-Read also:
+\\
+=====Action settings=====
+^Setting^Description^
+|Other table|Select the other table to synchronize with (e.g., wait until that table's action chain is complete before continuing the current one).|
+\\
+=====Remarks=====
+You cannot select a table that relies on (is based on) the current dataset.  Doing so will result in a "cyclical dependency error".
+\\
+=====Community examples=====
+  * [[https://community.easymorph.com/t//1273/8|Split Excel spreadsheets into multiple spreadsheets]] ([[https://community.easymorph.com/uploads/short-url/klG62NjaDDRQ2VXvo1xtFZJUYjK.morph|Project]]; Module: //Main//; Group: //Tab 1//; Table: //Table 2//; Action position: //4//)
+  * [[https://community.easymorph.com/t//1769/1|How to do recursive loops in EasyMorph]] ([[https://community.easymorph.com/uploads/short-url/qM6kmqrDRWiEDJFljIa2u6QWre1.morph|Project]]; Module: //Main//; Group: //Tab 1//; Table: //Loop//; Action position: //2//)
+  * [[https://community.easymorph.com/t//1854/2|Product of Rows in a Column]] ([[https://community.easymorph.com/uploads/short-url/8o7F1FHzlEr0hUV2BgCLFNEMKqk.morph|Project]]; Module: //Main//; Group: //Tab 1//; Table: //Cumulative iteration//; Action position: //2//)
+\\
+=====See also=====
+  * [[transformations:halt|Halt on condition]]
+  * [[transformations:wait|Wait]]
   * [[http://blog.easymorph.com/2016/11/using-synchronize-transformation.html|Blog: Using Synchronize transformation]]