Package com.complexible.common.rdf.random

Class RandomValueGenerator

  • All Implemented Interfaces:
    java.util.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 Detail

      • 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,
                            java.lang.String[] nameSpaces)
        Creates a value generator with the given seed and namespaces.

    • Method Detail

      • getNameSpaces

        public java.lang.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​(java.lang.String[] args)