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Jun 23, 2022
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Correct WF definition for multiple data filters #632

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10 changes: 5 additions & 5 deletions specification.md
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Original file line number Diff line number Diff line change
Expand Up @@ -660,12 +660,12 @@ a workflow with a single event state and show how data filters can be combined.
"functionRef": {
"refName": "greetingFunction",
"arguments": {
"greeting": "${ .spanish } ",
"greeting": "${ .hello.spanish } ",
"customerName": "${ .customerInfo.name } "
}
},
"actionDataFilter": {
"fromStateData": "${ .hello }",
"fromStateData": "${ { hello, customerInfo } }",
"results": "${ .greetingMessageResult }",
"toStateData": "${ .finalCustomerGreeting }"
}
Expand Down Expand Up @@ -767,7 +767,7 @@ At this point our state data contains:

```json
{
"hello": {
"hello": {
"english": "Hello",
"spanish": "Hola",
"german": "Hallo",
Expand All @@ -790,7 +790,7 @@ At this point our state data contains:
**(3) Event state performs its actions**:
Before the first action is executed, its actionDataFilter is invoked. Its "fromStateData" expression filters
the current state data to select from its data that should be available to action arguments. In this example
it selects the "hello" property from the current state data.
it selects the "hello" and "customerInfo" properties from the current state data.
At this point the action is executed.
We assume that for this example "greetingFunction" returns:

Expand Down Expand Up @@ -899,7 +899,7 @@ After merging the state data should be:
}
```

Merging array types should be done by concatenating them into a larger array including unique elements of both arrays.
Merging array types should be done by concatenating them into a larger array including unique elements of both arrays.
To give an example, merging:

```json
Expand Down