Implementation:Treeverse LakeFS Java SDK Model ObjectStageCreation

Knowledge Sources	Treeverse_LakeFS lakeFS API Reference
Domains	Java_SDK, Data_Model
Last Updated	2026-02-08 00:00 GMT

Overview

Concrete data transfer object representing a request to stage an object in the lakeFS Java SDK.

Description

The ObjectStageCreation class is an auto-generated model object produced by OpenAPI Generator from the lakeFS API specification. It provides type-safe access to object staging fields through getter/setter methods and supports JSON serialization via Gson.

Usage

Use this model when staging objects directly by providing their physical storage location through the lakeFS Java SDK API classes.

Code Reference

Source Location

• Repository: Treeverse_LakeFS
• File: clients/java/src/main/java/io/lakefs/clients/sdk/model/ObjectStageCreation.java
• Lines: 1-478

Signature

public class ObjectStageCreation {
    // Fields with @SerializedName annotations
    // Getter/setter methods
    // equals, hashCode, toString
    // JSON type adapter
}

Import

import io.lakefs.clients.sdk.model.ObjectStageCreation;

I/O Contract

Inputs

Name	Type	Required	Description
physical_address	String	Yes	Physical storage address of the object
checksum	String	Yes	Checksum of the object content
size_bytes	Long	Yes	Size of the object in bytes
mtime	Long	No	Modification time of the object as epoch milliseconds
metadata	Map<String, String>	No	User-defined metadata key-value pairs
content_type	String	No	MIME content type of the object
force	Boolean	No	Force staging even if object exists (default false)

Outputs

Name	Type	Description
JSON	String	Serialized JSON representation of the object

Usage Examples

Creating an Instance

import io.lakefs.clients.sdk.model.ObjectStageCreation;

ObjectStageCreation obj = new ObjectStageCreation();
obj.setPhysicalAddress("s3://bucket/path/to/object");
obj.setChecksum("abc123def456");
obj.setSizeBytes(1024L);

Related Pages

• Principle:Treeverse_LakeFS_Java_SDK_Data_Models
• Environment:Treeverse_LakeFS_LakeFS_Server_Environment