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## org.basex.query.xquery.expr
Enum Calc

    java.lang.Object
      java.lang.Enum<Calc>
          org.basex.query.xquery.expr.Calc

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

    public enum Calc

extends java.lang.Enum<Calc>

Calculation.

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

Enum Constant Summary
`DIV` Division.
`IDIV` Integer division.
`MINUS` Subtraction.
`MOD` Modulo.
`MULT` Multiplication.
`PLUS` Addition.

Field Summary
`java.lang.String` | `name` Name of operation.

Method Summary
`abstract Item` | `ev(Item a, Item b)` Performs the calculation.
`java.lang.String` | `info()` Returns a string representation of the operator.
`java.lang.String` | `toString()`
`static Type` | `type(Item a, Item b)` Returns the numeric type with the highest precedence.
`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

  Addition.

### MINUS

    public static final Calc MINUS

  Subtraction.

### MULT

    public static final Calc MULT

  Multiplication.

### DIV

    public static final Calc DIV

  Division.

### IDIV

    public static final Calc IDIV

  Integer division.

### MOD

    public static final Calc MOD

  Modulo.

Field Detail

### name

    public final java.lang.String name

  Name of operation.

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

### ev

    public abstract Item ev(Item a,
                            Item b)
                     throws XQException

  Performs the calculation.

  Parameters:
    `a` - first item
    `b` - second item
  Returns:
    result type
  Throws:
    `XQException` - evaluation exception

### type

    public static final Type type(Item a,
                                  Item b)

  Returns the numeric type with the highest precedence.

  Parameters:
    `a` - first item
    `b` - second item
  Returns:
    type

### toString

    public java.lang.String toString()

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

### info

    public java.lang.String info()

  Returns a string representation of the operator.

  Returns:
    string

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