com.bigdata.rdf.internal.impl.bnode

Class FullyInlineUnicodeBNodeIV<V extends BigdataBNode>

java.lang.Object

com.bigdata.rdf.internal.impl.AbstractIV<V,T>

com.bigdata.rdf.internal.impl.AbstractInlineIV<V,T>

com.bigdata.rdf.internal.impl.bnode.AbstractBNodeIV<V,String>

com.bigdata.rdf.internal.impl.bnode.FullyInlineUnicodeBNodeIV<V>

All Implemented Interfaces:

IInlineUnicode, IV<V,String>, IVCache<V,String>, Serializable, Comparable<IV>, org.openrdf.model.BNode, org.openrdf.model.Resource, org.openrdf.model.Value

public class FullyInlineUnicodeBNodeIV<V extends BigdataBNode>
extends AbstractBNodeIV<V,String>
implements IInlineUnicode

Class for inline RDF blank nodes. Blank nodes MUST use a "short" Unicode ID to be inlined with this class, where "short" is the maximum length configured for the lexicon.

Author:

Bryan Thompson

See Also:

AbstractTripleStore.Options, Serialized Form

Field Summary

Fields inherited from class com.bigdata.rdf.internal.impl.AbstractIV

flags

Constructor Summary

Constructors

Constructor and Description
FullyInlineUnicodeBNodeIV(String id)
FullyInlineUnicodeBNodeIV(String id, int byteLength)

Method Summary

Methods

Modifier and Type	Method and Description
int	_compareTo(IV o) Compare two IVs having the same intrinsic datatype.
int	byteLength() The byte length of the encoded IV.
IV<V,String>	clone(boolean clearCache) Return a copy of this IV.
boolean	equals(Object o) Return true iff the two IVs are the same point in the same value space.
String	getID() Implements BNode.getID().
String	getInlineValue() Return the Java Object corresponding to the inline value.
int	hashCode() Return a hash code based on the value of the point in the value space.
boolean	needsMaterialization() Does not need materialization to answer BNode interface methods.
void	setByteLength(int byteLength) Cache the byteLength on the IV.
String	toString()

Methods inherited from class com.bigdata.rdf.internal.impl.bnode.AbstractBNodeIV

asValue, stringValue

Methods inherited from class com.bigdata.rdf.internal.impl.AbstractInlineIV

isInline

Methods inherited from class com.bigdata.rdf.internal.impl.AbstractIV

compareTo, encode, flags, getDTE, getDTE, getDTEX, getInternalValueTypeEnum, getValue, getValueCache, getVTE, getVTE, hasValue, isBigNumeric, isBNode, isExtension, isExtension, isFixedNumeric, isFloatingPointNumeric, isInline, isLiteral, isNullIV, isNumeric, isResource, isSignedNumeric, isStatement, isUnsignedNumeric, isURI, isVocabulary, setValue, toFlags

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FullyInlineUnicodeBNodeIV

public FullyInlineUnicodeBNodeIV(String id)

FullyInlineUnicodeBNodeIV

public FullyInlineUnicodeBNodeIV(String id,
                         int byteLength)

Parameters:

id - The

byteLength - The byte length of this IV.

Method Detail

clone

public IV<V,String> clone(boolean clearCache)

Description copied from interface: IVCache

Return a copy of this IV.

Note: This method exists to defeat the hard reference from the IV to the cached BigdataValue in order to avoid a memory leak when the IV is used as the key in a weak value cache whose value is the BigdataValue. Therefore, certain IV implementations MAY return this when they are used for limited collections. The vocabulary IVs are the primary example. For the same reason, we do not need to recursively break the link from the IV to the BigdataValue for IVs which embed other IVs.

Specified by:

clone in interface IVCache<V extends BigdataBNode,String>

Parameters:

clearCache - When true the cached reference (if any) will NOT be set on the copy.

Returns:

The copy.

See Also:

(Thread-local cache combined with unbounded thread pools causes effective memory leak)

toString

public String toString()

Overrides:

toString in class Object

getInlineValue

public final String getInlineValue()

Description copied from interface: IV

Return the Java Object corresponding to the inline value.

Specified by:

getInlineValue in interface IV<V extends BigdataBNode,String>

Returns:

The Object.

equals

public boolean equals(Object o)

Description copied from class: AbstractIV

Return true iff the two IVs are the same point in the same value space. Points in different value spaces (as identified by different datatype URIs) are NOT equal even if they have the same value in the corresponding primitive data type.

Note: The IV implementations typically DO NOT compare equals() with BigdataValues. Therefore you MUST NOT mix IVs and BigdataValues in the keys of a map or the values of a set.

Specified by:

equals in interface org.openrdf.model.BNode

Specified by:

equals in class AbstractIV<V extends BigdataBNode,String>

_compareTo

public int _compareTo(IV o)

Description copied from class: AbstractIV

Compare two IVs having the same intrinsic datatype.

Specified by:

_compareTo in class AbstractIV<V extends BigdataBNode,String>

hashCode

public int hashCode()

Description copied from class: AbstractIV

Return a hash code based on the value of the point in the value space.

Note: The IV implementations typically DO NOT return hash codes that are consistent with BigdataValue#hashCode(). Therefore you MUST NOT mix IVs and BigdataValues in the keys of a map or the values of a set.

Specified by:

hashCode in interface org.openrdf.model.BNode

Specified by:

hashCode in class AbstractIV<V extends BigdataBNode,String>

byteLength

public int byteLength()

Description copied from interface: IV

The byte length of the encoded IV.

Specified by:

byteLength in interface IV<V extends BigdataBNode,String>

setByteLength

public final void setByteLength(int byteLength)

Description copied from interface: IInlineUnicode

Cache the byteLength on the IV.

Specified by:

setByteLength in interface IInlineUnicode

Parameters:

byteLength - The byteLength.

getID

public String getID()

Implements BNode.getID().

Specified by:

getID in interface org.openrdf.model.BNode

needsMaterialization

public boolean needsMaterialization()

Does not need materialization to answer BNode interface methods.

Specified by:

needsMaterialization in interface IV<V extends BigdataBNode,String>