Package org.aksw.jenax.facete.treequery2.impl

Class FacetPathMappingImpl

java.lang.Object

org.aksw.jenax.facete.treequery2.impl.FacetPathMappingImpl

All Implemented Interfaces:

FacetPathMapping

public class FacetPathMappingImpl
extends Object
implements FacetPathMapping

Mapping of facet paths to hashes. In case of hash clashes a sequence number is appended to the hash codes.

Field Summary

Fields

Modifier and Type	Field	Description
static final com.google.common.io.BaseEncoding	DEFAULT_ENCODING
static final com.google.common.hash.HashFunction	DEFAULT_HASH_FUNCTION
protected com.google.common.io.BaseEncoding	encoding
protected com.google.common.hash.HashFunction	hashing
protected com.google.common.collect.BiMap<org.aksw.jenax.path.core.FacetPath,com.google.common.hash.HashCode>	pathToHashCode	So far allocated mappings

Constructor Summary

Constructors

Constructor	Description
FacetPathMappingImpl()	Default construction using Guava's Hashing.murmur3_32_fixed() and BaseEncoding.base32().omitPadding().
FacetPathMappingImpl(com.google.common.hash.HashFunction hashing, com.google.common.io.BaseEncoding encoding)

Method Summary

Modifier and Type	Method	Description
String	allocate(org.aksw.jenax.path.core.FacetPath rawFacetPath)
com.google.common.io.BaseEncoding	getEncoding()
com.google.common.hash.HashFunction	getHashing()
com.google.common.collect.BiMap<org.aksw.jenax.path.core.FacetPath,com.google.common.hash.HashCode>	getPathToName()
String	hashCodeToString(com.google.common.hash.HashCode hashCode)
byte[]	increment(byte[] arr)
static ScopedVar	resolveVar(FacetPathMapping facetPathMapping, String baseScopeName, org.apache.jena.sparql.core.Var rootVar, org.aksw.jenax.path.core.FacetPath facetPath)
static ScopedVar	resolveVar(FacetPathMapping facetPathMapping, VarScope scope, org.aksw.jenax.path.core.FacetPath facetPath)
static ScopedVar	resolveVar(FacetPathMapping facetPathMapping, ScopedFacetPath sfp)
static String	toString(com.google.common.hash.HashCode hashCode)

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_ENCODING

public static final com.google.common.io.BaseEncoding DEFAULT_ENCODING

DEFAULT_HASH_FUNCTION

public static final com.google.common.hash.HashFunction DEFAULT_HASH_FUNCTION

pathToHashCode

protected com.google.common.collect.BiMap<org.aksw.jenax.path.core.FacetPath,com.google.common.hash.HashCode> pathToHashCode

So far allocated mappings

hashing

protected com.google.common.hash.HashFunction hashing

encoding

protected com.google.common.io.BaseEncoding encoding

Constructor Details

FacetPathMappingImpl

public FacetPathMappingImpl()

Default construction using Guava's Hashing.murmur3_32_fixed() and BaseEncoding.base32().omitPadding().

FacetPathMappingImpl

public FacetPathMappingImpl(com.google.common.hash.HashFunction hashing,
 com.google.common.io.BaseEncoding encoding)

Method Details

getPathToName

public com.google.common.collect.BiMap<org.aksw.jenax.path.core.FacetPath,com.google.common.hash.HashCode> getPathToName()

getEncoding

public com.google.common.io.BaseEncoding getEncoding()

getHashing

public com.google.common.hash.HashFunction getHashing()

increment

public byte[] increment(byte[] arr)

allocate

public String allocate(org.aksw.jenax.path.core.FacetPath rawFacetPath)

Specified by:

allocate in interface FacetPathMapping

toString

public static String toString(com.google.common.hash.HashCode hashCode)

hashCodeToString

public String hashCodeToString(com.google.common.hash.HashCode hashCode)

resolveVar

public static ScopedVar resolveVar(FacetPathMapping facetPathMapping,
 ScopedFacetPath sfp)

resolveVar

public static ScopedVar resolveVar(FacetPathMapping facetPathMapping,
 VarScope scope,
 org.aksw.jenax.path.core.FacetPath facetPath)

resolveVar

public static ScopedVar resolveVar(FacetPathMapping facetPathMapping,
 String baseScopeName,
 org.apache.jena.sparql.core.Var rootVar,
 org.aksw.jenax.path.core.FacetPath facetPath)