ContractWithKey

java.lang.Object
- com.daml.ledger.javaapi.data.codegen.Contract<Id,Data>
- - com.daml.ledger.javaapi.data.codegen.ContractWithKey<Id,Data,Key>

Type Parameters:

Id - The generated contract ID class alongside the generated Contract class.

Data - The containing template's associated record type.

Key - The template's key type.

All Implemented Interfaces:

Contract
```
public abstract class ContractWithKey<Id,Data,Key>
extends Contract<Id,Data>
```
A superclass for all codegen-generated Contracts whose templates have a key defined.

Field Summary

Fields
Modifier and Type Field Description

java.util.Optional<Key> key
The contract's key, if it was present in the event.
- Fields inherited from class com.daml.ledger.javaapi.data.codegen.Contract
  agreementText, data, id, observers, signatories

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object object)`
`int`	`hashCode()`
`JsonLfEncoder`	`keyJsonEncoder()`
`java.lang.String`	`keyToJson()`
`java.lang.String`	`toString()`

Methods inherited from class com.daml.ledger.javaapi.data.codegen.Contract
getContractTypeId

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

- Field Detail
  - key
```
public final java.util.Optional<Key> key
```
    The contract's key, if it was present in the event.
- Method Detail
  - equals
```
public final boolean equals(java.lang.Object object)
```
    Overrides:
    
    equals in class Contract<Id,Data>
  - hashCode
```
public final int hashCode()
```
    Overrides:
    
    hashCode in class Contract<Id,Data>
  - toString
```
public final java.lang.String toString()
```
    Overrides:
    
    toString in class Contract<Id,Data>
  - keyJsonEncoder
```
public JsonLfEncoder keyJsonEncoder()
```
  - keyToJson
```
public java.lang.String keyToJson()
```