Package com.semedy.reasoner.edb.ramstore

Class TupleStore

java.lang.Object
com.semedy.reasoner.edb.ramstore.TupleStore
Direct Known Subclasses:
TupleStoreWithReferenceCounters
public class TupleStore extends Object

  • Field Details

    • _elementData

      public long[] _elementData
      the memory piece where all tuples are residing in a sequence

    • _elements

      public int _elements
      number of tuples

  • Constructor Details

    • TupleStore

      public TupleStore(int arity, ReasoningMonitor monitor)

    • TupleStore

      public TupleStore(int arity)

  • Method Details

    • getArity

      public int getArity()
      get the arity
      Returns:

    • sizeInBytes

      public int sizeInBytes()
      number of bytes used in main memory. Used for cache management
      Returns:

    • newTuple

      public int newTuple() throws IOException
      create a new tuple of length arity and return the address
      Returns:
      Throws:
      IOException

    • getElementData

      public long[] getElementData()
      return the data
      Returns:

    • newTuple

      public int newTuple(long[] buf) throws IOException
      create a new tuple and copy buf into that tuple and return the address
      Parameters:
      buf -
      Returns:
      Throws:
      IOException

    • newTuple

      public int newTuple(TupleBuffer buf) throws IOException
      create a new tuple and copy buf into that tuple and return the address
      Parameters:
      buf -
      Returns:
      Throws:
      IOException

    • removeTuple

      public void removeTuple(int address)
      remove a tuple at address and with a certain length
      Parameters:
      address -

    • size

      public int size()
      return the number of tuples
      Returns:

    • clear

      public void clear()
      clear the tuple store

    • getReferenceCount

      public int getReferenceCount(int t)
      returns a reference counter for tuple t
      Parameters:
      t - , tuple address
      Returns:

    • setReferenceCount

      public void setReferenceCount(int t, int count)
      set the reference count for tuple t
      Parameters:
      t - , tuple
      count - , reference count

    • incReferenceCount

      public void incReferenceCount(int t)
      increment reference count for tuple t
      Parameters:
      t - , tuple

    • decrementNGetReferenceCount

      public int decrementNGetReferenceCount(int t)
      decrement and get reference count for tuple t
      Parameters:
      t - , tuple
      Returns:

    • clone

      public TupleStore clone()
      clone a tuple store with the whole content