All Superinterfaces:

java.lang.AutoCloseable, java.io.Closeable

All Known Implementing Classes:

DelegatingRDFStream, RandomStream, RDFStreamBase
```
public interface RDFStream
extends java.io.Closeable
```
A simple interface for representing a stream for RDF input. An RDF stream is typically backed by an input stream and parsed with an RDFParser but a specific stream implementation might use different means to generate statements.

Since:

1.1

Version:

6.0

Author:

Evren Sirin

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`bytesRead()`	Supposed to return the number currently parsed.
`long`	`estimatedCount()`	Estimated size of statements.
`Resource`	`getContext()`	Returns the default context associated with this stream or `null` if there is no default context.
`java.lang.String`	`getName()`	Returns the name of this stream.
`boolean`	`hasContext()`	Returns `true` either if this stream has a non-null `context` or the statements generated by this stream has contexts.
`long`	`length()`
`void`	`parse(RDFHandler theHandler)`	Parses the stream and passes the statements to the given handler.

Methods inherited from interface java.io.Closeable
close

- Method Detail
  - parse
```
void parse(RDFHandler theHandler)
    throws java.io.IOException,
           InvalidRDF,
           RDFHandlerException
```
    Parses the stream and passes the statements to the given handler.
    
    Throws:
    
    java.io.IOException
    
    InvalidRDF
    
    RDFHandlerException
  - getContext
```
Resource getContext()
```
    Returns the default context associated with this stream or null if there is no default context. Note that, the statements that will be sent to the handler may not be using this context and the user of this stream should make sure the context information is used correctly.
  - hasContext
```
boolean hasContext()
```
    Returns true either if this stream has a non-null context or the statements generated by this stream has contexts.
  - getName
```
java.lang.String getName()
```
    Returns the name of this stream. If the stream is backed by a file this will return the file's name. Otherwise it might be an auto-generated name or some other (not necessarily unique) name.
  - bytesRead
```
long bytesRead()
```
    Supposed to return the number currently parsed. Can be used for progress reporting from RDFHandler
    
    Returns:
    
    Number of bytes parsed
  - length
```
long length()
```
    Returns:
    
    Length in bytes of underlying data
  - estimatedCount
```
long estimatedCount()
```
    Estimated size of statements. Might be accurate or calculate only from the data size. Given N bytes in an RDFStream, the estimated number of statements depends on the RDF format. RDF stream may or may not be compressed, which also impacts the bytes-to-statements ratio.
    
    Returns:
    
    estimated size of statements.

Interface RDFStream

Method Summary

Methods inherited from interface java.io.Closeable

Method Detail

parse

getContext

hasContext

getName

bytesRead

length

estimatedCount