Conditions

Conditions are very similar to conditions in imperative programming languages such as Python, Java, C++ or JavaScript. You can use Entity Attributes in a condition just like a variable by referencing it in the Condition using it's Fully-Qualified Name (FQN) in dot (.) notation. They are used to dynamically show or hide components based on the data received from the data sources.

Condition Formatting:

You can combine two conditions into a more complex one using logical operators but make sure to not forget the parenthesis.

The supported logical operators are:

• AND: Logical AND
• OR: Logical OR

Condition Examples

Given that we have an entity named TempSensor1 with attributes temp, humidity and components named MyComponent, MyOtherComponent we can use the following conditions:

if TempSensor1.temp > 10 and TempSensor1.humidity < 20
    use MyComponent, MyOtherComponent

if 0 > TempSensor1.temp > 10 or TempSensor1.humidity < 20
    use MyComponent
else
    use MyComponent, MyOtherComponent

if TempSensor1.temp > 10
    use MyComponent
else if TempSensor1.temp < 10
    use MyOtherComponent
else
    use MyComponent

The supported comparison operators are:

• >: Greater than
• <: Less than
• >=: Greater than or equal to
• <=: Less than or equal to
• ==: Equal to
• !=: Not equal to