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package org.jooq.impl;

import org.jooq.Name;

The operator used in Expression
Author:
Lukas Eder/**
 * The operator used in <code>Expression</code>
 *
 * @author Lukas Eder
 */
enum ExpressionOperator {

    
Concatenation
/**
     * Concatenation
     */
    CONCAT("||", true, false),

    
Addition
/**
     * Addition
     */
    ADD("+", true, true),

    
Subtraction
/**
     * Subtraction
     */
    SUBTRACT("-"),

    
Multiplication
/**
     * Multiplication
     */
    MULTIPLY("*", true, true),

    
Division
/**
     * Division
     */
    DIVIDE("/"),

    
Modulo
/**
     * Modulo
     */
    MODULO("%"),

    
Bitwise not
/**
     * Bitwise not
     */
    BIT_NOT("~"),

    
Bitwise and
/**
     * Bitwise and
     */
    BIT_AND("&", true, true),

    
Bitwise or
/**
     * Bitwise or
     */
    BIT_OR("|", true, true),

    
Bitwise xor
/**
     * Bitwise xor
     */
    BIT_XOR("^", true, true),

    
Bitwise nand
/**
     * Bitwise nand
     */
    BIT_NAND("~&"),

    
Bitwise nor
/**
     * Bitwise nor
     */
    BIT_NOR("~|"),

    
Bitwise xor
/**
     * Bitwise xor
     */
    BIT_XNOR("~^"),

    
Bitwise shift left
/**
     * Bitwise shift left
     */
    SHL("<<"),

    
Bitwise shift right
/**
     * Bitwise shift right
     */
    SHR(">>"),

    ;

    private final String  sql;
    private final Name    name;
    private final boolean associative;
    private final boolean commutative;

    private ExpressionOperator(String sql) {
        this(sql, false, false);
    }

    private ExpressionOperator(String sql, boolean associative, boolean commutative) {
        this.sql = sql;
        this.name = DSL.name(name().toLowerCase());
        this.associative = associative;
        this.commutative = commutative;
    }

    final String toSQL() {
        return sql;
    }

    final Name toName() {
        return name;
    }

    final boolean associative() {
        return associative;
    }

    final boolean commutative() {
        return commutative;
    }
}