new ReadOnlyChildCollectionSync(parent, eventHandlers)
Creates a new synchronous read-only child collection instance.
The name of the model type available as: <instance>.constructor.modelType, returns 'ReadOnlyChildCollectionSync'.
Valid parent model types are:
* ReadOnlyRootModelSync
* ReadOnlyChildModelSync
* CommandObjectSync
Parameters:
Name | Type | Argument | Description |
---|---|---|---|
parent |
objects | The parent business object. |
|
eventHandlers |
bo.shared.EventHandlerList |
<optional> |
The event handlers of the instance. |
Throws:
Extends
Members
-
<readonly> $modelName :string
-
The name of the model.
Type:
- string
-
<readonly> count :number
-
The count of the child objects in the collection.
Type:
- number
Methods
-
at(index) → {ReadOnlyChildModelSync}
-
Gets a collection item at a specific position.
Parameters:
Name Type Description index
number The index of the required item in the collection.
Returns:
The required collection item.
-
<protected> checkRules()
-
Executes validation on all items of the collection.
This method is called by the parent object.
-
every(callback) → {boolean}
-
Tests whether all items in the collection pass the test implemented by the provided function.
Parameters:
Name Type Description callback
external.cbCollectionItem Function to test for each collection item.
Returns:
True when callback returns truthy value for each item, otherwise false.
- Type
- boolean
-
<protected> fetch(data)
-
Initializes the items in the collection with data retrieved from the repository.
This method is called by the parent object.
Parameters:
Name Type Argument Description data
Array.<object> <optional>
The data to load into the business object collection.
-
filter(callback) → {Array.<ReadOnlyChildModelSync>}
-
Creates a new array with all collection items that pass the test implemented by the provided function.
Parameters:
Name Type Description callback
external.cbCollectionItem Function to test for each collection item.
Returns:
The new array of collection items.
- Type
- Array.<ReadOnlyChildModelSync>
-
forEach(callback)
-
Executes a provided function once per collection item.
Parameters:
Name Type Description callback
external.cbCollectionItem Function that produces an item of the new collection.
-
<protected> getBrokenRules(namespace) → {Array.<bo.rules.BrokenRulesOutput>}
-
Gets the broken rules of all items of the collection.
This method is called by the parent object.
Parameters:
Name Type Argument Description namespace
string <optional>
The namespace of the message keys when messages are localizable.
Returns:
The broken rules of the collection.
- Type
- Array.<bo.rules.BrokenRulesOutput>
-
<protected> isValid() → {boolean}
-
Indicates whether all items of the business collection are valid.
This method is called by the parent object.
Returns:
- Type
- boolean
-
map(callback) → {Array.<*>}
-
Creates a new array with the results of calling a provided function on every item in this collection.
Parameters:
Name Type Description callback
external.cbCollectionItem Function to test for each collection item.
Returns:
The new array of callback results.
- Type
- Array.<*>
-
some(callback) → {boolean}
-
Tests whether some item in the collection pass the test implemented by the provided function.
Parameters:
Name Type Description callback
external.cbCollectionItem Function to test for each collection item.
Returns:
True when callback returns truthy value for some item, otherwise false.
- Type
- boolean
-
sort(fnCompare) → {ReadOnlyChildCollectionSync}
-
Sorts the items of the collection in place and returns the collection.
Parameters:
Name Type Argument Description fnCompare
external.cbCompare <optional>
Function that defines the sort order. If omitted, the collection is sorted according to each character's Unicode code point value, according to the string conversion of each item.
Returns:
The sorted collection.
-
toCto() → {Array.<object>}
-
Transforms the business object collection to a plain object array to send to the client.
This method is usually called by the parent object.Returns:
The client transfer object.
- Type
- Array.<object>