List Versions of an Object

List All Versions of an Object

Enabling Versioning in a bucket allows you to store multiple versions of the same object in the bucket. Each version of the object will have its own versionId. This SDK method allows you to get all the existing versions of an object present in a bucket by pagination. The Object reference used in the below code snippet is the component instance.

Parameters Used

Ensure the following packages are imported

    

        
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         import com.zc.component.stratus.ZCBucket;
import com.zc.component.stratus.ZCStratus;
import com.zc.component.stratus.ZCPagedObjectResponse;
import com.zc.component.stratus.ZCObject;
import com.zc.component.stratus.beans.ZCObjectVersions;
import com.zc.component.stratus.beans.ZCObjectVersions.ZCVersionDetail;
import java.util.List;
    

    

        
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         String nextToken = null;
int maxVersion = 5;
do {
 ZCObjectVersions res = object.listPagedVersions(maxVersion, nextToken);
 System.out.println(res.getVersion());
 for(ZCVersionDetail version : res.getVersion()) {
 System.out.println("version id: "+version.getVersionId());
 }
 nextToken = res.getNextToken();
} while(nextToken != null);
    

List All Versions of the Object in an Iterable Manner

You can use the following SDK method to list all available versions of the object in a single call.

Ensure the following packages are imported

    

        
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         import java.util.Iterator;
import com.zc.component.stratus.beans.ZCObjectVersions;
import com.zc.component.stratus.beans.ZCObjectVersions.ZCVersionDetail;
    

    

        
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         int maxVersion = 10;
Iterable<List<ZCVersionDetail>> paginationIterable=object.listIterableVersions(maxVersion);
Iterator<List<ZCVersionDetail>> iterator = paginationIterable.iterator();
while(iterator.hasNext()) {
 List<ZCVersionDetail> objects= iterator.next();
 for(ZCVersionDetail object: objects){
 System.out.println(object.getVersionId());
 }
}