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package io.army.criteria.impl;

import io.army.dialect.Database;

enum PostgreUnaryExpOperator implements Operator.SqlUnaryExpOperator {

    /**
     * @see |/ double precision → double precision

     * Square root
     * 
     */
    VERTICAL_SLASH(" |/"),
    /**
     * @see ||/ double precision → double precision

     * Cube root
     * 
     */
    DOUBLE_VERTICAL_SLASH(" ||/"),
    /**
     * @see @-@ geometric_type → double precision

     * Computes the total length. Available for lseg, path.
     * 
     */
    AT_HYPHEN_AT(" @-@"),
    /**
     * @see Absolute value operator
     */
    AT(" @"),
    /**
     * @see @@ geometric_type → point

     * Computes the center point. Available for box, lseg, polygon, circle.
     * 
     */
    AT_AT(" @@"),
    /**
     * @see !! tsquery → tsquery

     * Negates a tsquery, producing a query that matches documents that do not match the input query.
     * 
     */
    DOUBLE_EXCLAMATION(" !!"),
    /**
     * @see # geometric_type → integer

     * Returns the number of points. Available for path, polygon.
     * 
     */
    POUND(" #");

    private final String spaceOperator;

    PostgreUnaryExpOperator(String spaceOperator) {
        this.spaceOperator = spaceOperator;
    }


    @Override
    public final String spaceRender() {
        return this.spaceOperator;
    }

    @Override
    public final Database database() {
        return Database.PostgreSQL;
    }

    @Override
    public final String toString() {
        return CriteriaUtils.enumToString(this);
    }


}