org.hypergraphdb.type.javaprimitive

Class DoubleType

java.lang.Object

org.hypergraphdb.type.javaprimitive.PrimitiveTypeBase<Double>

org.hypergraphdb.type.javaprimitive.DoubleType

All Implemented Interfaces:

HGGraphHolder, HGOrderedSearchable<Double,HGPersistentHandle>, HGSearchable<Double,HGPersistentHandle>, ByteArrayConverter<Double>, HGAtomType, HGPrimitiveType<Double>, HGRefCountedType

public class DoubleType
extends PrimitiveTypeBase<Double>

Author:

User

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DoubleType.DoubleComparator

Field Summary

Fields

Modifier and Type	Field and Description
static String	INDEX_NAME

Fields inherited from class org.hypergraphdb.type.javaprimitive.PrimitiveTypeBase

dataOffset, graph, valueIndex

Constructor Summary

Constructors

Constructor and Description
DoubleType()

Method Summary

Methods

Modifier and Type	Method and Description
Comparator<byte[]>	getComparator() Return a java.util.Comparator instance that provides an order relation of the values of the primitive type.
protected String	getIndexName() Return the name of the DB index to create for the primitive values.
protected Double	readBytes(byte[] bytes, int offset)
protected byte[]	writeBytes(Double value)

Methods inherited from class org.hypergraphdb.type.javaprimitive.PrimitiveTypeBase

compare, find, findGT, findGTE, findLT, findLTE, fromByteArray, getIndex, getRefCount, getRefCountFor, make, putRefCount, release, setHyperGraph, store, storeImpl, subsumes, toByteArray

Methods inherited from class java.lang.Object

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

Field Detail

INDEX_NAME

public static final String INDEX_NAME

See Also:

Constant Field Values

Constructor Detail

DoubleType

public DoubleType()

Method Detail

getComparator

public Comparator<byte[]> getComparator()

Description copied from interface: HGPrimitiveType

Return a java.util.Comparator instance that provides an order relation of the values of the primitive type. An implementation is allowed to return null in which case it is assumed that the type does not offer an ordering relation. However, if a non-null value is returned, it is must be of a publicly available and default constructible class.

getIndexName

protected String getIndexName()

Description copied from class: PrimitiveTypeBase

Return the name of the DB index to create for the primitive values.

Specified by:

getIndexName in class PrimitiveTypeBase<Double>

writeBytes

protected byte[] writeBytes(Double value)

Specified by:

writeBytes in class PrimitiveTypeBase<Double>

readBytes

protected Double readBytes(byte[] bytes,
               int offset)

Specified by:

readBytes in class PrimitiveTypeBase<Double>