org.janusgraph.graphdb.database.serialize.attribute

Class BooleanSerializer

java.lang.Object

org.janusgraph.graphdb.database.serialize.attribute.BooleanSerializer

All Implemented Interfaces:

AttributeSerializer<Boolean>, OrderPreservingSerializer<Boolean>

public class BooleanSerializer
extends Object
implements OrderPreservingSerializer<Boolean>

Constructor Summary

Constructors

Constructor and Description
BooleanSerializer()

Method Summary

Modifier and Type	Method and Description
Boolean	convert(Object value) Converts the given (not-null) value to the expected data type V.
static boolean	decode(byte b)
static byte	encode(boolean b)
Boolean	read(ScanBuffer buffer) Reads an attribute from the given ReadBuffer.
Boolean	readByteOrder(ScanBuffer buffer) Reads an attribute from the given ReadBuffer assuming it was written in byte order.
void	write(WriteBuffer out, Boolean attribute) Writes the attribute value to the given WriteBuffer.
void	writeByteOrder(WriteBuffer buffer, Boolean attribute) Writes the attribute value to the given WriteBuffer such that the byte order of the result is equal to the natural order of the attribute.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.janusgraph.core.attribute.AttributeSerializer

verifyAttribute

Constructor Detail

BooleanSerializer

public BooleanSerializer()

Method Detail

read

public Boolean read(ScanBuffer buffer)

Description copied from interface: AttributeSerializer

Reads an attribute from the given ReadBuffer.

It is expected that this read operation adjusts the position in the ReadBuffer to after the attribute value.

Specified by:

read in interface AttributeSerializer<Boolean>

Parameters:

buffer - ReadBuffer to read attribute from

Returns:

Read attribute

write

public void write(WriteBuffer out,
                  Boolean attribute)

Description copied from interface: AttributeSerializer

Writes the attribute value to the given WriteBuffer.

It is expected that this write operation adjusts the position in the WriteBuffer to after the attribute value.

Specified by:

write in interface AttributeSerializer<Boolean>

Parameters:

out - WriteBuffer to write attribute to

attribute - Attribute to write to WriteBuffer

readByteOrder

public Boolean readByteOrder(ScanBuffer buffer)

Description copied from interface: OrderPreservingSerializer

Reads an attribute from the given ReadBuffer assuming it was written in byte order.

It is expected that this read operation adjusts the position in the ReadBuffer to after the attribute value.

Specified by:

readByteOrder in interface OrderPreservingSerializer<Boolean>

Parameters:

buffer - ReadBuffer to read attribute from

Returns:

Read attribute

writeByteOrder

public void writeByteOrder(WriteBuffer buffer,
                           Boolean attribute)

Description copied from interface: OrderPreservingSerializer

Writes the attribute value to the given WriteBuffer such that the byte order of the result is equal to the natural order of the attribute.

It is expected that this write operation adjusts the position in the WriteBuffer to after the attribute value.

Specified by:

writeByteOrder in interface OrderPreservingSerializer<Boolean>

Parameters:

buffer - WriteBuffer to write attribute to

attribute - Attribute to write to WriteBuffer

convert

public Boolean convert(Object value)

Description copied from interface: AttributeSerializer

Converts the given (not-null) value to the expected data type V. The given object will NOT be of type V. Throws an IllegalArgumentException if it cannot be converted.

Specified by:

convert in interface AttributeSerializer<Boolean>

Parameters:

value - to convert

Returns:

converted to expected data type

decode

public static boolean decode(byte b)

encode

public static byte encode(boolean b)