> ## Documentation Index > Fetch the complete documentation index at: https://cantonfoundation-generated-references-ledger-bindings-update.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # CommandsOuterClass.Command.Builder > A command can either create a new contract or exercise a choice on an existing contract. Protobuf type com.daml.ledger.api.v2.Command ## CommandsOuterClass.Command.Builder Upstream docs: [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html) **Signature** ```text theme={"theme":{"light":"github-light","dark":"github-dark"}} public static final class CommandsOuterClass.Command.Builder extends com.google.protobuf.GeneratedMessageV3.Builder implements CommandsOuterClass.CommandOrBuilder ``` **Members** | Docs | Member | Introduced | Deprecated | Removed | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------- | ---------- | ---------- | ------- | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#addRepeatedField%28com.google.protobuf.Descriptors.FieldDescriptor,java.lang.Object%29) | `addRepeatedField(Descriptors.FieldDescriptor, Object)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#build%28%29) | `build()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#buildPartial%28%29) | `buildPartial()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clear%28%29) | `clear()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearCommand%28%29) | `clearCommand()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearCreate%28%29) | `clearCreate()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearCreateAndExercise%28%29) | `clearCreateAndExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearExercise%28%29) | `clearExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearExerciseByKey%28%29) | `clearExerciseByKey()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearField%28com.google.protobuf.Descriptors.FieldDescriptor%29) | `clearField(Descriptors.FieldDescriptor)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clearOneof%28com.google.protobuf.Descriptors.OneofDescriptor%29) | `clearOneof(Descriptors.OneofDescriptor)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#clone%28%29) | `clone()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCommandCase%28%29) | `getCommandCase()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreate%28%29) | `getCreate()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreateAndExercise%28%29) | `getCreateAndExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreateAndExerciseBuilder%28%29) | `getCreateAndExerciseBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreateAndExerciseOrBuilder%28%29) | `getCreateAndExerciseOrBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreateBuilder%28%29) | `getCreateBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getCreateOrBuilder%28%29) | `getCreateOrBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getDefaultInstanceForType%28%29) | `getDefaultInstanceForType()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getDescriptor%28%29) | `getDescriptor()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getDescriptorForType%28%29) | `getDescriptorForType()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExercise%28%29) | `getExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExerciseBuilder%28%29) | `getExerciseBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExerciseByKey%28%29) | `getExerciseByKey()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExerciseByKeyBuilder%28%29) | `getExerciseByKeyBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExerciseByKeyOrBuilder%28%29) | `getExerciseByKeyOrBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#getExerciseOrBuilder%28%29) | `getExerciseOrBuilder()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#hasCreate%28%29) | `hasCreate()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#hasCreateAndExercise%28%29) | `hasCreateAndExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#hasExercise%28%29) | `hasExercise()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#hasExerciseByKey%28%29) | `hasExerciseByKey()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#internalGetFieldAccessorTable%28%29) | `internalGetFieldAccessorTable()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#isInitialized%28%29) | `isInitialized()` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeCreate%28com.daml.ledger.api.v2.CommandsOuterClass.CreateCommand%29) | `mergeCreate(CommandsOuterClass.CreateCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeCreateAndExercise%28com.daml.ledger.api.v2.CommandsOuterClass.CreateAndExerciseCommand%29) | `mergeCreateAndExercise(CommandsOuterClass.CreateAndExerciseCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeExercise%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseCommand%29) | `mergeExercise(CommandsOuterClass.ExerciseCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeExerciseByKey%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseByKeyCommand%29) | `mergeExerciseByKey(CommandsOuterClass.ExerciseByKeyCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeFrom%28com.google.protobuf.CodedInputStream,com.google.protobuf.ExtensionRegistryLite%29) | `mergeFrom(CodedInputStream, ExtensionRegistryLite)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeFrom%28com.daml.ledger.api.v2.CommandsOuterClass.Command%29) | `mergeFrom(CommandsOuterClass.Command)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeFrom%28com.google.protobuf.Message%29) | `mergeFrom(Message)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#mergeUnknownFields%28com.google.protobuf.UnknownFieldSet%29) | `mergeUnknownFields(UnknownFieldSet)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setCreate%28com.daml.ledger.api.v2.CommandsOuterClass.CreateCommand%29) | `setCreate(CommandsOuterClass.CreateCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setCreate%28com.daml.ledger.api.v2.CommandsOuterClass.CreateCommand.Builder%29) | `setCreate(CommandsOuterClass.CreateCommand.Builder)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setCreateAndExercise%28com.daml.ledger.api.v2.CommandsOuterClass.CreateAndExerciseCommand%29) | `setCreateAndExercise(CommandsOuterClass.CreateAndExerciseCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setCreateAndExercise%28com.daml.ledger.api.v2.CommandsOuterClass.CreateAndExerciseCommand.Builder%29) | `setCreateAndExercise(CommandsOuterClass.CreateAndExerciseCommand.Builder)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setExercise%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseCommand%29) | `setExercise(CommandsOuterClass.ExerciseCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setExercise%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseCommand.Builder%29) | `setExercise(CommandsOuterClass.ExerciseCommand.Builder)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setExerciseByKey%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseByKeyCommand%29) | `setExerciseByKey(CommandsOuterClass.ExerciseByKeyCommand)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setExerciseByKey%28com.daml.ledger.api.v2.CommandsOuterClass.ExerciseByKeyCommand.Builder%29) | `setExerciseByKey(CommandsOuterClass.ExerciseByKeyCommand.Builder)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setField%28com.google.protobuf.Descriptors.FieldDescriptor,java.lang.Object%29) | `setField(Descriptors.FieldDescriptor, Object)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setRepeatedField%28com.google.protobuf.Descriptors.FieldDescriptor,int,java.lang.Object%29) | `setRepeatedField(Descriptors.FieldDescriptor, int, Object)` | `3.5.7` | - | - | | [Open](https://javadoc.io/doc/com.daml/bindings-java/3.5.7/com/daml/ledger/api/v2/CommandsOuterClass.Command.Builder.html#setUnknownFields%28com.google.protobuf.UnknownFieldSet%29) | `setUnknownFields(UnknownFieldSet)` | `3.5.7` | - | - |