com.novell.sentinel.client.tinyq
Enum Operator

java.lang.Object
  java.lang.Enum<Operator>
      com.novell.sentinel.client.tinyq.Operator

All Implemented Interfaces:

Serializable, Comparable<Operator>

public enum Operator
extends Enum<Operator>

Enum describing operators in the TinyQuery language.

Enum Constant Summary

AND

EQUAL

GREATER_THAN

GREATER_THAN_OR_EQUAL

GROUP_LEFT

GROUP_RIGHT

LESS_THAN

LESS_THAN_OR_EQUAL

LIKE

NOT

NOT_AN_OPERATOR

NOT_EQUAL

OR

Field Summary

static char

OPERATOR_PREFIX Lexical symbol used to prefix operator symbols to indicate the operator symbols are not to be interpreted as literal characters.

Method Summary

int	getPrecedence() Return the precedence value of this Operator.
boolean	isBinary()
static Operator	mapToOperator(char c) Given a character, return the corresponding Operator, if any.
String	toQueryString() Return the lexical representation of the operator.
String	toString() Return a human-readable string representing the operator.
static Operator	valueOf(String name) Returns the enum constant of this type with the specified name.
static Operator[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NOT

public static final Operator NOT

LESS_THAN

public static final Operator LESS_THAN

LESS_THAN_OR_EQUAL

public static final Operator LESS_THAN_OR_EQUAL

GREATER_THAN

public static final Operator GREATER_THAN

GREATER_THAN_OR_EQUAL

public static final Operator GREATER_THAN_OR_EQUAL

EQUAL

public static final Operator EQUAL

NOT_EQUAL

public static final Operator NOT_EQUAL

LIKE

public static final Operator LIKE

OR

public static final Operator OR

AND

public static final Operator AND

GROUP_LEFT

public static final Operator GROUP_LEFT

GROUP_RIGHT

public static final Operator GROUP_RIGHT

NOT_AN_OPERATOR

public static final Operator NOT_AN_OPERATOR

Field Detail

OPERATOR_PREFIX

public static final char OPERATOR_PREFIX

Lexical symbol used to prefix operator symbols to indicate the operator symbols are not to be interpreted as literal characters.

See Also:

Constant Field Values

Method Detail

values

public static Operator[] 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 (Operator c : Operator.values())
    System.out.println(c);

Returns:

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

valueOf

public static Operator valueOf(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:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getPrecedence

public int getPrecedence()

Return the precedence value of this Operator. Larger values indicate higher precedence.

Returns:

Precedence value.

isBinary

public boolean isBinary()

Returns:

true if the operator is binary, false if the operator is unary.

toString

public String toString()

Return a human-readable string representing the operator.

Overrides:

toString in class Enum<Operator>

toQueryString

public String toQueryString()

Return the lexical representation of the operator.

Returns:

The lexical representation of the operator in the language.

mapToOperator

public static Operator mapToOperator(char c)

Given a character, return the corresponding Operator, if any.

Parameters:

c - Character to check.

Returns:

The corresponding Operator, or NOT_AN_OPERATOR if the passed char doesn't correspond to an operator.