TDB2 (Apache Jena TDB2)

java.lang.Object
- org.apache.jena.tdb2.TDB2

```
public class TDB2
extends Object
```

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`BUILD_DATE` The date and time at which this release was built
`static org.slf4j.Logger`	`logInfo` Logger for general information
`static String`	`logInfoName` Logger for general information
`static org.slf4j.Logger`	`logLoader` Logger for loading information
`static String`	`logLoaderName` Logger for loading information
`static String`	`NAME`
`static String`	`namespace` Used by the assembler
`static String`	`PATH` The root package name for TDB
`static org.apache.jena.sparql.util.Symbol`	`symUnionDefaultGraph` Symbol to use the union of named graphs as the default graph of a query.
`static org.apache.jena.sparql.util.Symbol`	`symUnionDefaultGraph1` TDB1 namespace version of the context symbol for union default graph
`static org.apache.jena.sparql.util.Symbol`	`symUnionDefaultGraph2` TDB2 namespace version of the context symbol for union default graph
`static String`	`tdbIRI` IRI for TDB
`static String`	`tdbParamNS` Root of TDB-defined parameter names
`static String`	`tdbSymbolPrefix` Prefix for TDB-defined parameter names
`static String`	`VERSION` The full name of the current TDB version

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`closedown()` Release any and all system resources held by TDB.
`static org.apache.jena.sparql.util.Context`	`getContext()`
`static void`	`init()` TDB System initialization - normally, this is not explicitly called because all routes to use TDB will cause initialization to occur.

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

- Field Detail
  - tdbIRI
```
public static final String tdbIRI
```
    IRI for TDB
    
    See Also:
    
    Constant Field Values
  - tdbParamNS
```
public static final String tdbParamNS
```
    Root of TDB-defined parameter names
    
    See Also:
    
    Constant Field Values
  - tdbSymbolPrefix
```
public static final String tdbSymbolPrefix
```
    Prefix for TDB-defined parameter names
    
    See Also:
    
    Constant Field Values
  - logLoaderName
```
public static final String logLoaderName
```
    Logger for loading information
    
    See Also:
    
    Constant Field Values
  - logLoader
```
public static final org.slf4j.Logger logLoader
```
    Logger for loading information
  - logInfoName
```
public static final String logInfoName
```
    Logger for general information
    
    See Also:
    
    Constant Field Values
  - logInfo
```
public static final org.slf4j.Logger logInfo
```
    Logger for general information
  - namespace
```
public static final String namespace
```
    Used by the assembler
    
    See Also:
    
    Constant Field Values
  - symUnionDefaultGraph1
```
public static final org.apache.jena.sparql.util.Symbol symUnionDefaultGraph1
```
    TDB1 namespace version of the context symbol for union default graph
  - symUnionDefaultGraph2
```
public static final org.apache.jena.sparql.util.Symbol symUnionDefaultGraph2
```
    TDB2 namespace version of the context symbol for union default graph
  - symUnionDefaultGraph
```
public static final org.apache.jena.sparql.util.Symbol symUnionDefaultGraph
```
    Symbol to use the union of named graphs as the default graph of a query. This must use the TDB1 compatible namespace.
  - PATH
```
public static final String PATH
```
    The root package name for TDB
    
    See Also:
    
    Constant Field Values
  - NAME
```
public static final String NAME
```
    See Also:
    
    Constant Field Values
  - VERSION
```
public static final String VERSION
```
    The full name of the current TDB version
  - BUILD_DATE
```
public static final String BUILD_DATE
```
    The date and time at which this release was built
- Method Detail
  - getContext
```
public static org.apache.jena.sparql.util.Context getContext()
```
  - closedown
```
public static void closedown()
```
    Release any and all system resources held by TDB. All release datasets or graphs held by client code are no longer valid.
  - init
```
public static void init()
```
    TDB System initialization - normally, this is not explicitly called because all routes to use TDB will cause initialization to occur. However, calling it repeatedly is safe and low cost.

Class TDB2

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

tdbIRI

tdbParamNS

tdbSymbolPrefix

logLoaderName

logLoader

logInfoName

logInfo

namespace

symUnionDefaultGraph1

symUnionDefaultGraph2

symUnionDefaultGraph

PATH

NAME

VERSION

BUILD_DATE

Method Detail

getContext

closedown

init