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Change group function EQUAL to EQUALITY (#783) 

Relates to https://github.com/eclipse/smarthome/pull/6278.

Signed-off-by: Henning Treu <henning.treu@telekom.de>
pull/776/head^2
Henning Treu 2018-10-01 17:13:49 +02:00 committed by Jerome Luckenbach
parent 580f30917c
commit 4e8ac7a789
1 changed files with 3 additions and 3 deletions
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6
configuration/items.md
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@ -467,14 +467,14 @@ The general syntax for groups with a specific item type and aggregation function
Group[:itemtype[:function]] groupname ["labeltext"] [<iconname>] [(group1, group2, ...)]
```
- If the aggregation function is omitted, the function `EQUAL` will be used
- If the aggregation function and `itemtype` are omitted, no group state will be aggregated from member Items
- If the aggregation function is omitted, the function `EQUALITY` will be used.
- If the aggregation function and `itemtype` are omitted, no group state will be aggregated from member Items.
Group state aggregation functions can be any of the following:
| Function | Description |
|------------------------|-------------|
| `EQUAL` | Default if no function is specified. If ALL members have state X the group state will be X, otherwise the group state will be `UNDEF`. |
| `EQUALITY` | Default if no function is specified. If ALL members have state X the group state will be X, otherwise the group state will be `UNDEF`. |
| `AND(value1,value2)` | [Boolean](https://en.wikipedia.org/wiki/Boolean_algebra) AND operation. If all item states are 'value1', 'value1' is returned, otherwise 'value2' is returned. |
| `OR(value1,value2)` | [Boolean](https://en.wikipedia.org/wiki/Boolean_algebra) OR operation. If at least one item state is of 'value1', 'value1' is returned, otherwise 'value2' is returned. |
| `NAND(value1,value2)` | [Boolean](https://en.wikipedia.org/wiki/Boolean_algebra) NAND (not AND) operation. Returns the opposite of the AND operation. |