org.apache.marmotta.kiwi.io

Class KiWiIO

java.lang.Object

org.apache.marmotta.kiwi.io.KiWiIO

public class KiWiIO
extends Object

Add file description here!

Author:

Sebastian Schaffert (sschaffert@apache.org)

Field Summary

Fields

Modifier and Type	Field and Description
static String	HTTP_LOCALHOST
static int	MODE_COMPRESSED
static int	MODE_DEFAULT
static int	MODE_PREFIX
static String	NS_DBPEDIA
static String	NS_FREEBASE
static String	NS_REDLINK

Constructor Summary

Constructors

Constructor and Description
KiWiIO()

Method Summary

Methods

Modifier and Type	Method and Description
static KiWiAnonResource	readBNode(DataInput input) Read a KiWiAnonResource serialized with writeBNode from a DataInput source
static KiWiBooleanLiteral	readBooleanLiteral(DataInput input) Read a KiWiBooleanLiteral serialized with writeBooleanLiteral from a DataInput source
static KiWiDateLiteral	readDateLiteral(DataInput input) Read a KiWiDateLiteral serialized with writeDateLiteral from a DataInput source
static KiWiDoubleLiteral	readDoubleLiteral(DataInput input) Read a KiWiDoubleLiteral serialized with writeDoubleLiteral from a DataInput source
static KiWiIntLiteral	readIntLiteral(DataInput input) Read a KiWiIntLiteral serialized with writeIntLiteral from a DataInput source
static KiWiNode	readNode(DataInput input) Read a KiWiNode serialized with writeNode and return it.
static KiWiStringLiteral	readStringLiteral(DataInput input) Read a KiWiStringLiteral serialized with writeStringLiteral from a DataInput source
static KiWiTriple	readTriple(DataInput input) Read a KiWiTriple serialized with writeTriple from a DataInput source
static KiWiUriResource	readURI(DataInput input) Read a KiWiUriResource serialized with writeURI and return it.
static void	writeBNode(DataOutput out, KiWiAnonResource bnode) Efficiently serialize a KiWiAnonResource to a DataOutput destination.
static void	writeBooleanLiteral(DataOutput out, KiWiBooleanLiteral literal) Efficiently serialize a KiWiBooleanLiteral to a DataOutput destination.
static void	writeDateLiteral(DataOutput out, KiWiDateLiteral literal) Efficiently serialize a KiWiDateLiteral to a DataOutput destination.
static void	writeDoubleLiteral(DataOutput out, KiWiDoubleLiteral literal) Efficiently serialize a KiWiDoubleLiteral to a DataOutput destination.
static void	writeIntLiteral(DataOutput out, KiWiIntLiteral literal) Efficiently serialize a KiWiIntLiteral to a DataOutput destination.
static void	writeNode(DataOutput output, KiWiNode node) Efficiently serialize a KiWiNode to a DataOutput destination.
static void	writeStringLiteral(DataOutput out, KiWiStringLiteral literal) Efficiently serialize a KiWiStringLiteral to a DataOutput destination.
static void	writeTriple(DataOutput output, KiWiTriple triple) Efficiently serialize a KiWiTriple to a DataOutput destination.
static void	writeURI(DataOutput out, KiWiUriResource uri) Efficiently serialize a KiWiUriResource to a DataOutput destination, using prefix compression for commonly used prefixes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NS_DBPEDIA

public static final String NS_DBPEDIA

See Also:

Constant Field Values

NS_FREEBASE

public static final String NS_FREEBASE

See Also:

Constant Field Values

MODE_DEFAULT

public static final int MODE_DEFAULT

See Also:

Constant Field Values

MODE_PREFIX

public static final int MODE_PREFIX

See Also:

Constant Field Values

MODE_COMPRESSED

public static final int MODE_COMPRESSED

See Also:

Constant Field Values

HTTP_LOCALHOST

public static final String HTTP_LOCALHOST

See Also:

Constant Field Values

NS_REDLINK

public static final String NS_REDLINK

See Also:

Constant Field Values

Constructor Detail

KiWiIO

public KiWiIO()

Method Detail

writeNode

public static void writeNode(DataOutput output,
             KiWiNode node)
                      throws IOException

Efficiently serialize a KiWiNode to a DataOutput destination. The type of node will be encoded with a single byte usinbg the TYPE_* constants defined in this class

Parameters:

output - DataOutput destination

node - KiWiNode to serialize

Throws:

IOException

readNode

public static KiWiNode readNode(DataInput input)
                         throws IOException

Read a KiWiNode serialized with writeNode and return it. The type indicator is used to determine which type of resource to instantiate.

Parameters:

input - DataInput source

Returns:

an instance of a subclass of KiWiNode, depending on the type indicator read from the source

Throws:

IOException

writeURI

public static void writeURI(DataOutput out,
            KiWiUriResource uri)
                     throws IOException

Efficiently serialize a KiWiUriResource to a DataOutput destination, using prefix compression for commonly used prefixes.

Parameters:

out - DataOutput destination

uri - KiWiUriResource to serialize

Throws:

IOException

readURI

public static KiWiUriResource readURI(DataInput input)
                               throws IOException

Read a KiWiUriResource serialized with writeURI and return it.

Parameters:

input - DataInput source

Returns:

a KiWiUriResource

Throws:

IOException

writeBNode

public static void writeBNode(DataOutput out,
              KiWiAnonResource bnode)
                       throws IOException

Efficiently serialize a KiWiAnonResource to a DataOutput destination.

Parameters:

out - the destination

bnode - the KiWiAnonResource to serialize

Throws:

IOException

readBNode

public static KiWiAnonResource readBNode(DataInput input)
                                  throws IOException

Read a KiWiAnonResource serialized with writeBNode from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiAnonResource

Throws:

IOException

writeBooleanLiteral

public static void writeBooleanLiteral(DataOutput out,
                       KiWiBooleanLiteral literal)
                                throws IOException

Efficiently serialize a KiWiBooleanLiteral to a DataOutput destination.

Parameters:

out - the destination

literal - the KiWiBooleanLiteral to serialize

Throws:

IOException

readBooleanLiteral

public static KiWiBooleanLiteral readBooleanLiteral(DataInput input)
                                             throws IOException

Read a KiWiBooleanLiteral serialized with writeBooleanLiteral from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiBooleanLiteral

Throws:

IOException

writeDateLiteral

public static void writeDateLiteral(DataOutput out,
                    KiWiDateLiteral literal)
                             throws IOException

Efficiently serialize a KiWiDateLiteral to a DataOutput destination.

Parameters:

out - the destination

literal - the KiWiDateLiteral to serialize

Throws:

IOException

readDateLiteral

public static KiWiDateLiteral readDateLiteral(DataInput input)
                                       throws IOException

Read a KiWiDateLiteral serialized with writeDateLiteral from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiDateLiteral

Throws:

IOException

writeDoubleLiteral

public static void writeDoubleLiteral(DataOutput out,
                      KiWiDoubleLiteral literal)
                               throws IOException

Efficiently serialize a KiWiDoubleLiteral to a DataOutput destination.

Parameters:

out - the destination

literal - the KiWiDoubleLiteral to serialize

Throws:

IOException

readDoubleLiteral

public static KiWiDoubleLiteral readDoubleLiteral(DataInput input)
                                           throws IOException

Read a KiWiDoubleLiteral serialized with writeDoubleLiteral from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiDoubleLiteral

Throws:

IOException

writeIntLiteral

public static void writeIntLiteral(DataOutput out,
                   KiWiIntLiteral literal)
                            throws IOException

Efficiently serialize a KiWiIntLiteral to a DataOutput destination.

Parameters:

out - the destination

literal - the KiWiIntLiteral to serialize

Throws:

IOException

readIntLiteral

public static KiWiIntLiteral readIntLiteral(DataInput input)
                                     throws IOException

Read a KiWiIntLiteral serialized with writeIntLiteral from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiIntLiteral

Throws:

IOException

writeStringLiteral

public static void writeStringLiteral(DataOutput out,
                      KiWiStringLiteral literal)
                               throws IOException

Efficiently serialize a KiWiStringLiteral to a DataOutput destination.

Parameters:

out - the destination

literal - the KiWiStringLiteral to serialize

Throws:

IOException

readStringLiteral

public static KiWiStringLiteral readStringLiteral(DataInput input)
                                           throws IOException

Read a KiWiStringLiteral serialized with writeStringLiteral from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiStringLiteral

Throws:

IOException

writeTriple

public static void writeTriple(DataOutput output,
               KiWiTriple triple)
                        throws IOException

Efficiently serialize a KiWiTriple to a DataOutput destination.

Parameters:

output - the destination

triple - the KiWiTriple to serialize

Throws:

IOException

readTriple

public static KiWiTriple readTriple(DataInput input)
                             throws IOException

Read a KiWiTriple serialized with writeTriple from a DataInput source

Parameters:

input - the source

Returns:

the de-serialized KiWiTriple

Throws:

IOException