TDB2Factory (Apache Jena TDB2)

java.lang.Object

org.apache.jena.tdb2.TDB2Factory

public class TDB2Factory extends Object

Public factory for connecting to and creating datasets backed by TDB2 storage.

Method Summary

Modifier and Type

Method

Description

static Dataset

assembleDataset(String assemblerFile)

Read the file and assemble a dataset

static Dataset

connectDataset(String location)

Create or connect to a TDB2-backed dataset

static Dataset

connectDataset(org.apache.jena.dboe.base.file.Location location)

Create or connect to a TDB2-backed dataset

static Dataset

createDataset()

Create an in-memory TDB2-backed dataset (for testing).

static boolean

isTDB2(Dataset dataset)

Test whether a dataset is backed by TDB or not.

static org.apache.jena.dboe.base.file.Location

location(Dataset dataset)

Return the location of a dataset if it is backed by TDB, else null

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- connectDataset
  
  public static Dataset connectDataset(org.apache.jena.dboe.base.file.Location location)
  
  Create or connect to a TDB2-backed dataset
- connectDataset
  
  public static Dataset connectDataset(String location)
  
  Create or connect to a TDB2-backed dataset
- createDataset
  
  public static Dataset createDataset()
  
  Create an in-memory TDB2-backed dataset (for testing). In-memory TDB2 datasets are use a simple simulation of disk I/O to give exact semantics, which is useful to create tests that run fast where setup and teardown of datasets can be the major cost.
  In-memory TDB2 datasets are not designed to scale, nor provide efficient execution for applications for long-term use.
- assembleDataset
  
  public static Dataset assembleDataset(String assemblerFile)
  
  Read the file and assemble a dataset
- isTDB2
  
  public static boolean isTDB2(Dataset dataset)
  
  Test whether a dataset is backed by TDB or not.
- location
  
  public static org.apache.jena.dboe.base.file.Location location(Dataset dataset)
  
  Return the location of a dataset if it is backed by TDB, else null