Caplin Trader 5.1.0 - Class: module:ct-trading/trademodel/TradeFactoryRepository

Class: module:ct-trading/trademodel/TradeFactoryRepository

module:ct-trading/trademodel/TradeFactoryRepository()

This is in beta and therefore subject to API changes.

The module:ct-trading/trademodel/TradeFactoryRepository class is used to manage the association between data maps and trade factories. A module:ct-trading/trademodel/TradeFactory can be retrieved by passing a Map to the module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory method and it can then used to create a module:ct-trading/trademodel/Trade object. Alternatively the module:ct-trading/trademodel/TradeFactoryRepository#restoreExistingTrade method can be used which will perform the lookup and the trade creation in a single method call.

For example, if a map exists with a TradingProtocol of "ESP" and an AssetClass of "FX":


{
		"TradeProtocol": "ESP",
		"AssetClass": "FX"
}

When the module:ct-trading/trademodel/TradeFactoryRepository#restoreExistingTrade method is then called with the above map the TradeFactoryRepository searches for a TradeFactory that is capable of creating a Trade for the given map and then creates one using it. For more information on map matching see module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory

A module:ct-trading/trademodel/TradeFactory is registered with the TradeFactoryRepository using the module:ct-trading/trademodel/TradeFactoryRepository#registerTradeFactory method.

The TradeFactoryRepository implements the module:ct-trading/trademodel/TradeFactory interface so it can be used with an instance of module:ct-trading/trademodel/TradeMessageService and can encapsulate the logic required to work out which TradeFactory to use to create a new trade following a client or server restore/inflate event.

Constructor

new module:ct-trading/trademodel/TradeFactoryRepository()

Constructs a new TradeFactoryRepository with the specified arguments.

Implements:

module:ct-trading/trademodel/TradeFactory

Methods

addListener()

See:

module:ct-trading/trademodel/TradeFactory#addListener

getTradeFactory(mFieldMap) → {module:ct-trading/trademodel/TradeFactory}

Gets a TradeFactory that can create a module:ct-trading/trademodel/Trade for the given field map.

For a TradeFactory to be returned one must have been registered with a map that has elements that match the parameter mFieldMap.

The ordering of the elements within the map is not important. For example, if a TradeFactory is registered using module:ct-trading/trademodel/TradeFactoryRepository#registerTradeFactory with the map:


{
		"TradeProtocol": "ESP",
		"AssetClass": "FX"
}

And the module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory method is called with a map with the element order reversed the match will succeed and a TradeFactory will be returned.


{
		"AssetClass": "FX"
		"TradeProtocol": "ESP",
}

In addition, the requirement is that all map elements from the registered map must be present in the field map. There is no requirement that the map passed to module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory cannot contain additional elements. For example, the following would also match because it contains "TradeProtocol" and "AssetClass" with the expected values:


{
		"Account": "AccountOne",
		"AssetClass": "FX"
		"BaseCurrency": "USD",
		"TradeProtocol": "ESP",
		"UserName": "Fred"
}

It is possible to register multiple trade factory objects with maps that may match. In this scenario the factory that has been registered first will be retrieved by module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory.

Parameters:

Name	Type	Description
`mFieldMap`	Map	The map to be matched against maps registered with a TradeFactory.

Returns:

A TradeFactory that can create a module:ct-trading/trademodel/Trade for the given field map.

Type: module:ct-trading/trademodel/TradeFactory

registerTradeFactory(mFieldMap, oTradeFactory)

Creates an association between a Map and a TradeFactory.

Trade factories can later be retrieved using module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory and are used in calls to module:ct-trading/trademodel/TradeFactoryRepository#restoreExistingTrade.

Parameters:

Name	Type	Description
`mFieldMap`	Map	The field map to be used in matches following calls to `module:ct-trading/trademodel/TradeFactoryRepository#getTradeFactory` and `module:ct-trading/trademodel/TradeFactoryRepository#restoreExistingTrade`.
`oTradeFactory`	module:ct-trading/trademodel/TradeFactory	The TradeFactory.

restoreExistingTrade()

Implements:

module:ct-trading/trademodel/TradeFactory#restoreExistingTrade

See:

module:ct-trading/trademodel/TradeFactory#restoreExistingTrade