client/src/main/java/com/orientechnologies/orient/core/metadata/schema/OClassRemote.java
@Override
  public OClass truncateCluster(String clusterName) {
    final ODatabaseDocumentInternal database = getDatabase();
    database.checkSecurity(ORule.ResourceGeneric.CLASS, ORole.PERMISSION_DELETE, name);
    acquireSchemaReadLock();
    try {

      final String cmd = String.format("truncate cluster %s", clusterName);
      database.command(cmd).close();
    } finally {
      releaseSchemaReadLock();
    }

    return this;
  }
@Override
  public OClass truncateCluster(String clusterName) {
    final ODatabaseDocumentInternal database = getDatabase();
    database.checkSecurity(ORule.ResourceGeneric.CLASS, ORole.PERMISSION_DELETE, name);
    acquireSchemaReadLock();
    try {

      final String cmd = String.format("truncate cluster %s", clusterName);
      database.command(cmd).close();
    } finally {
      releaseSchemaReadLock();
    }

    return this;
  }
{@inheritDoc}