Package com.complexible.common.rdf.random

Class RandomValueGenerator

java.lang.Object
com.google.common.collect.UnmodifiableIterator<Value>
com.complexible.common.rdf.random.RandomValueGenerator
All Implemented Interfaces:
Iterator<Value>
public class RandomValueGenerator extends com.google.common.collect.UnmodifiableIterator<Value>
Generates an infinite sequence of random RDF terms. Configuration options can be used to control what kind of terms are generated. When next() is called the value probabilites are used to decide if a URI, bnode, or a literal will be generated. The literal probabilities are used to decide what kind of literal is generated. Only plain, integer, float, double, or dateTime literals will be generated. Setting any probability to 0 will disable generation of that type.
Since:
0.9.6
Version:
3.1.2
Author:
Evren Sirin

  • Constructor Details

    • RandomValueGenerator

      public RandomValueGenerator()
      Creates a value generator with a single namespace.

    • RandomValueGenerator

      public RandomValueGenerator(int nameSpaceCount)
      Creates a value generator with the requested number of namespaces.

    • RandomValueGenerator

      public RandomValueGenerator(long randomSeed, int nameSpaceCount)
      Creates a value generator with the given seed and the requested number of namespaces.

    • RandomValueGenerator

      public RandomValueGenerator(long randomSeed, String[] nameSpaces)
      Creates a value generator with the given seed and namespaces.

  • Method Details

    • getNameSpaces

      public String[] getNameSpaces()

    • hasNext

      public boolean hasNext()

    • next

      public Value next()

    • nextResource

      public Resource nextResource()

    • nextLiteral

      public Literal nextLiteral()

    • nextString

      public Literal nextString(int length)

    • nextURI

      public IRI nextURI()

    • nextBnode

      public BNode nextBnode()

    • setSeed

      public void setSeed(long theSeed)
      The general contract of setSeed is that it alters the state to be in exactly the same state as if it had just been created with the argument seed as a seed.

    • nextFloat

      public float nextFloat()

    • nextInt

      public int nextInt(int bound)

    • nextBoolean

      public boolean nextBoolean()

    • getMinLiteralLength

      public int getMinLiteralLength()

    • setMinLiteralLength

      public void setMinLiteralLength(int minLiteralLength)

    • getMaxLiteralLength

      public int getMaxLiteralLength()
      Returns:
      max string literal length

    • setMaxLiteralLength

      public void setMaxLiteralLength(int maxLiteralLength)

    • getMinLocalNameLength

      public int getMinLocalNameLength()

    • setMinLocalNameLength

      public void setMinLocalNameLength(int minLocalNameLength)

    • getMaxLocalNameLength

      public int getMaxLocalNameLength()

    • setMaxLocalNameLength

      public void setMaxLocalNameLength(int maxLocalNameLength)

    • getMinBnodeLength

      public int getMinBnodeLength()

    • setMinBnodeLength

      public void setMinBnodeLength(int minBnodeLength)

    • getMaxBnodeLength

      public int getMaxBnodeLength()

    • setMaxBnodeLength

      public void setMaxBnodeLength(int maxBnodeLength)

    • isBuiltinBnode

      public boolean isBuiltinBnode()

    • setBuiltinBnode

      public void setBuiltinBnode(boolean builtinBnode)

    • getLiteralProbability

      public float getLiteralProbability()

    • getBnodeProbability

      public float getBnodeProbability()

    • getURIProbability

      public float getURIProbability()

    • setValueProbability

      public void setValueProbability(float uriProbability, float bnodeProbability, float literalProbability)

    • setLiteralProbability

      public void setLiteralProbability(float stringProbability, float langStringProbability, float intProbability, float floatProbability, float doubleProbability, float dateProbability)

    • getIntProbability

      public float getIntProbability()

    • getFloatProbability

      public float getFloatProbability()

    • getDoubleProbability

      public float getDoubleProbability()

    • getDateProbability

      public float getDateProbability()

    • getLangStringProbability

      public float getLangStringProbability()

    • getStringProbability

      public float getStringProbability()

    • main

      public static void main(String[] args)