BlankNodeAllocator (Apache Jena ARQ)

All Known Implementing Classes:

BlankNodeAllocatorFixedSeedHash, BlankNodeAllocatorGlobal, BlankNodeAllocatorHash, BlankNodeAllocatorLabel, BlankNodeAllocatorLabelEncoded
```
public interface BlankNodeAllocator
```
Interface to allocators for blank nodes.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Node`	`alloc(java.lang.String label)`	Allocate based on a non-null label.
`Node`	`create()`	Create a fresh blank node, different from anything generated so far.
`void`	`reset()`	Reset allocation state - calls to `alloc(java.lang.String)` or `create()`

- Method Detail
  - alloc
```
Node alloc(java.lang.String label)
```
    Allocate based on a non-null label. Calling this twice, with the same label will generate equivalent nodes but they may not be identical (i.e they are .equals but may not be ==)
  - create
```
Node create()
```
    Create a fresh blank node, different from anything generated so far. Will not clash with a node allocated by alloc(java.lang.String)
  - reset
```
void reset()
```
    Reset allocation state - calls to alloc(java.lang.String) or create()