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## org.basex.query.xpath.item
Enum Calc

    java.lang.Object
      java.lang.Enum<Calc>
          org.basex.query.xpath.item.Calc

All Implemented Interfaces:
  java.io.Serializable, java.lang.Comparable<Calc>

    public enum Calc

extends java.lang.Enum<Calc>

This enumeration assembles different value comparisons.

Author:
  Workgroup DBIS, University of Konstanz 2005-08, ISC License, Christian Gruen

Enum Constant Summary
`DIV` Expression Type: division.
`MINUS` Expression Type: subtraction.
`MOD` Expression Type: modulo.
`MULT` Expression Type: multiplication.
`PLUS` Expression Type: addition.

Field Summary
`java.lang.String` | `name` String representation.

Method Summary
`abstract double` | `eval(double d1, double d2)` Evaluates the expression.
`java.lang.String` | `toString()`
`static Calc` | `valueOf(java.lang.String name)` Returns the enum constant of this type with the specified name.
`static Calc[]` | `values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
`compareTo, equals, getDeclaringClass, hashCode, name, ordinal, valueOf`

Methods inherited from class java.lang.Object
`getClass, notify, notifyAll, wait, wait, wait`

Enum Constant Detail

### PLUS

    public static final Calc PLUS

  Expression Type: addition.

### MINUS

    public static final Calc MINUS

  Expression Type: subtraction.

### MULT

    public static final Calc MULT

  Expression Type: multiplication.

### DIV

    public static final Calc DIV

  Expression Type: division.

### MOD

    public static final Calc MOD

  Expression Type: modulo.

Field Detail

### name

    public final java.lang.String name

  String representation.

Method Detail

### values

    public static Calc[] values()

  Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

      for (Calc c : Calc.values())
          System.out.println(c);

  Returns:
    an array containing the constants of this enum type, in the order they are declared

### valueOf

    public static Calc valueOf(java.lang.String name)

  Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

  Parameters:
    `name` - the name of the enum constant to be returned.
  Returns:
    the enum constant with the specified name
  Throws:
    `java.lang.IllegalArgumentException` - if this enum type has no constant with the specified name
    `java.lang.NullPointerException` - if the argument is null

### eval

    public abstract double eval(double d1,
                                double d2)

  Evaluates the expression.

  Parameters:
    `d1` - first value
    `d2` - second value
  Returns:
    result

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Enum<Calc>`

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