> ## Documentation Index
> Fetch the complete documentation index at: https://cantonfoundation-generated-references-canton-protobuf-histo.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# ContractTypeCompanion

> The commonality between ContractCompanion and InterfaceCompanion.

<div class="x2mdx-ref-page x2mdx-ref-page--collection" />

<p class="x2mdx-ref-back"><a href="./index">Back to package</a></p>

<div class="x2mdx-ref-hero">
  <p class="x2mdx-ref-eyebrow">com.daml.ledger.javaapi.data.codegen</p>

  <h1 class="x2mdx-ref-title">ContractTypeCompanion</h1>

  <p class="x2mdx-ref-summary">The commonality between ContractCompanion and InterfaceCompanion.</p>

  <div class="x2mdx-ref-badges">
    <span class="x2mdx-ref-badge x2mdx-ref-badge--protocol">Java</span>
  </div>

  <div class="x2mdx-ref-meta-grid">
    <div class="x2mdx-ref-meta-item">
      <span class="x2mdx-ref-meta-label">Package</span>
      <span class="x2mdx-ref-meta-value">com.daml.ledger.javaapi.data.codegen</span>
    </div>

    <div class="x2mdx-ref-meta-item">
      <span class="x2mdx-ref-meta-label">Upstream docs</span>
      <span class="x2mdx-ref-meta-value"><a href="https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html">Open Javadoc</a></span>
    </div>
  </div>
</div>

## Signature

```java theme={"theme":{"light":"github-light","dark":"github-dark"}}
public abstract class ContractTypeCompanion<Ct,Id,ContractType,Data> extends Object
```

## Members

| Member | Lifecycle | Upstream docs |
| - | - | - |
| `PACKAGE` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#PACKAGE) |
| `PACKAGE_ID` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#PACKAGE_ID) |
| `PACKAGE_NAME` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#PACKAGE_NAME) |
| `PACKAGE_VERSION` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#PACKAGE_VERSION) |
| `TEMPLATE_ID` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#TEMPLATE_ID) |
| `TEMPLATE_ID_WITH_PACKAGE_ID` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#TEMPLATE_ID_WITH_PACKAGE_ID) |
| `choices` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#choices) |
| `fromCreatedEvent(CreatedEvent)` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#fromCreatedEvent%28com.daml.ledger.javaapi.data.CreatedEvent%29) |
| `fromCreatedEvent(CreatedEvent, UnknownTrailingFieldPolicy)` | Added `3.5.1` | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#fromCreatedEvent%28com.daml.ledger.javaapi.data.CreatedEvent,com.daml.ledger.javaapi.data.codegen.UnknownTrailingFieldPolicy%29) |
| `getTemplateIdWithPackageId()` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#getTemplateIdWithPackageId%28%29) |
| `toContractId(ContractId<ContractType>)` | - | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.17/com/daml/ledger/javaapi/data/codegen/ContractTypeCompanion.html#toContractId%28com.daml.ledger.javaapi.data.codegen.ContractId%29) |