InterfaceCompanion

java.lang.Object
- com.daml.ledger.javaapi.data.codegen.ContractTypeCompanion<Contract<Id,View>,Id,I,View>
- - com.daml.ledger.javaapi.data.codegen.InterfaceCompanion<I,Id,View>

Type Parameters:

I - The generated interface marker class.

View - The DamlRecord subclass representing the interface view, as may be retrieved from the ACS or transaction stream.
```
public abstract class InterfaceCompanion<I,Id,View>
extends ContractTypeCompanion<Contract<Id,View>,Id,I,View>
```
Metadata and utilities associated with an interface as a whole. Its subclasses serve to disambiguate various generated toInterface overloads.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static interface InterfaceCompanion.FromJson<T>

Field Summary

Fields
Modifier and Type Field Description

ValueDecoder<View> valueDecoder
- Fields inherited from class com.daml.ledger.javaapi.data.codegen.ContractTypeCompanion
  choices, TEMPLATE_ID

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Contract<Id,View>`	`fromCreatedEvent(CreatedEvent event)`	Tries to parse a contract from an event expected to create a `Ct` contract.
`View`	`fromJson(java.lang.String json)`

Methods inherited from class com.daml.ledger.javaapi.data.codegen.ContractTypeCompanion
toContractId

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - valueDecoder
```
public final ValueDecoder<View> valueDecoder
```
- Method Detail
  - fromJson
```
public View fromJson(java.lang.String json)
              throws JsonLfDecoder.Error
```
    Throws:
    
    JsonLfDecoder.Error
  - fromCreatedEvent
```
public final Contract<Id,View> fromCreatedEvent(CreatedEvent event)
                                               throws java.lang.IllegalArgumentException
```
    Description copied from class: ContractTypeCompanion
    
    Tries to parse a contract from an event expected to create a Ct contract. This is either the CreatedEvent.getArguments() for ContractCompanion, or one of CreatedEvent.getInterfaceViews() for an InterfaceCompanion.
    
    Specified by:
    
    fromCreatedEvent in class ContractTypeCompanion<Contract<Id,View>,Id,I,View>
    
    Parameters:
    
    event - the event to try to parse a contract from
    
    Returns:
    
    The parsed contract, with payload and metadata, if present.
    
    Throws:
    
    java.lang.IllegalArgumentException - when the CreatedEvent payload cannot be parsed as Data, or the CreatedEvent.getContractKey() cannot be parsed as a contract key.