Package com.tangosol.coherence.dsltools.termtrees

Class AtomicTerm

java.lang.Object
com.tangosol.coherence.dsltools.termtrees.Term
com.tangosol.coherence.dsltools.termtrees.AtomicTerm
All Implemented Interfaces:
Iterable<Term>
public class AtomicTerm extends Term
AtomicTerms is the class used to represent literal Terms such as String and Numbers. The functor() method for AtomicTerms return a type name for the stored literals.
Author:
djl 2009.08.31

  • Field Details

    • STRINGLITERAL

      public static final int STRINGLITERAL
      The numberic code for a string literal
      See Also:

    • INTEGERLITERAL

      public static final int INTEGERLITERAL
      The numberic code for a integer literal
      See Also:

    • LONGLITERAL

      public static final int LONGLITERAL
      The numberic code for a long literal
      See Also:

    • FLOATLITERAL

      public static final int FLOATLITERAL
      The numberic code for a float literal
      See Also:

    • DOUBLELITERAL

      public static final int DOUBLELITERAL
      The numberic code for a double literal
      See Also:

    • BOOLEANLITERAL

      public static final int BOOLEANLITERAL
      The numberic code for a boolean literal
      See Also:

    • NULLLITERAL

      public static final int NULLLITERAL
      The numberic code for a boolean literal
      See Also:

    • SHORTLITERAL

      public static final int SHORTLITERAL
      The numberic code for a symbol literal
      See Also:

    • SYMBOLLITERAL

      public static final int SYMBOLLITERAL
      The numberic code for a symbol literal
      See Also:

  • Constructor Details

    • AtomicTerm

      public AtomicTerm(String sValue, int nType)
      Construct a new AtomicTerm with the given parameters.
      Parameters:
      sValue - the String representation of the literal
      nType - the type code for the given literal

  • Method Details

    • getTypeCode

      public int getTypeCode()
      Obtain the typecode for the node.
      Returns:
      the typecode

    • getValue

      public String getValue()
      Obtain the string value for the node.
      Returns:
      the string value

    • getFunctor

      public String getFunctor()
      Obtain the functor representation of the Term.
      Specified by:
      getFunctor in class Term
      Returns:
      the functor

    • fullFormString

      public String fullFormString()
      Answer a String representation of the Term that is allowed to show more internal details than toString() which does not compress information. Similar to Object.toString().
      Specified by:
      fullFormString in class Term
      Returns:
      a String representation of the receiver

    • isNumber

      public boolean isNumber()
      Answer whether the receiver is an Atomic Term representing a Number.
      Overrides:
      isNumber in class Term
      Returns:
      the boolean result of the isNumber() test

    • withChild

      public Term withChild(Term t)
      Join the receiver with the given child Term. AtomicTerms will construct a general list term (functor .list.) and NodeTerms may be mutated.
      Specified by:
      withChild in class Term
      Parameters:
      t - the term to join with
      Returns:
      the Term resulting from joining.

    • children

      public Term[] children()
      Obtain the childern Terms
      Specified by:
      children in class Term
      Returns:
      the children of the receiver

    • termAt

      public Term termAt(int index)
      Obtain the child term at the given index. The index is 1 based for children and with at(0) returning the functor as an AtomicTerm. Beware, your 0 based habits can cause problems but 1 based indexing is useful since the functor is an interesting part of the information space. We are bowing here to the wisdom of Mathematica Expressions.
      Specified by:
      termAt in class Term
      Parameters:
      index - index of the child or functor to return
      Returns:
      the child Term or functor as AtomicTerm if index is 0

    • findChild

      public Term findChild(String fn)
      Find the Term amoungst the children whose functor equals the given functor.
      Overrides:
      findChild in class Term
      Parameters:
      fn - the functor to search for
      Returns:
      the found Term or null if not found

    • termEqual

      public boolean termEqual(Term t)
      Answer whether the receiver is equal to the given Term. Terms are equal if their functors are equal and their children are termEqual to the children of the given term.
      Specified by:
      termEqual in class Term
      Parameters:
      t - the Term to check for termEqual
      Returns:
      the boolean result of the comparison

    • getObject

      public Object getObject()
      Obtain the Object representation of the node. This will be one of the java Types String, Integer, Long, Float, Double, or Boolean.
      Returns:
      the Object

    • getNumber

      public Number getNumber()
      Obtain the Number representation of the node.
      Returns:
      the Comparable

    • negativeNumber

      public Number negativeNumber(Number num)
      Make negative the given number that supposedly came from this node.
      Parameters:
      num - a Number that was created by this node
      Returns:
      a negated

    • negate

      public void negate()
      Make negavite the representation of this node.

    • isValidNumber

      public boolean isValidNumber()
      Test whether the value is of a valid number format.
      Returns:
      the the results of testing for numeric format validity

    • accept

      public void accept(TermWalker walker)
      Description copied from class: Term
      Do a dispatch back to the given walker.
      Overrides:
      accept in class Term
      Parameters:
      walker - the TermWalker that implements the visitor for Terms

    • toString

      public String toString()
      Return a human-readable description for this Node.
      Overrides:
      toString in class Object
      Returns:
      a String description of the Node

    • createString

      public static AtomicTerm createString(String value)
      Create new AtomicTerm representing a String with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a String

    • createShort

      public static AtomicTerm createShort(String value)
      Create new AtomicTerm representing a Short with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Integer

    • createInteger

      public static AtomicTerm createInteger(String value)
      Create new AtomicTerm representing a Integer with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Integer

    • createLong

      public static AtomicTerm createLong(String value)
      Create new AtomicTerm representing a Long with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Long

    • createFloat

      public static AtomicTerm createFloat(String value)
      Create new AtomicTerm representing a float with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Float

    • createDouble

      public static AtomicTerm createDouble(String value)
      Create new AtomicTerm representing a Double with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Double

    • createBoolean

      public static AtomicTerm createBoolean(String value)
      Create new AtomicTerm representing a Boolean with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a boolean

    • createNull

      public static AtomicTerm createNull(String value)
      Create new AtomicTerm representing a null with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a null

    • createNull

      public static AtomicTerm createNull()
      Create new AtomicTerm representing a null.
      Returns:
      a AtomicTerm for a null

    • createSymbol

      public static AtomicTerm createSymbol(String value)
      Create new AtomicTerm representing a Symbol with given value
      Parameters:
      value - the text of the literal
      Returns:
      a AtomicTerm for a Symbol