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/**
 * This file is part of Graylog.
 *
 * Graylog is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Graylog is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Graylog.  If not, see .
 */
package org.graylog.events.conditions;

public interface ExpressionVisitor {
    boolean visit(Expr.True expr);

    boolean visit(Expr.And and);

    boolean visit(Expr.Or or);

    boolean visit(Expr.Not not);

    boolean visit(Expr.Equal equal);

    boolean visit(Expr.Greater greater);

    boolean visit(Expr.GreaterEqual greater);

    boolean visit(Expr.Lesser lesser);

    boolean visit(Expr.LesserEqual lesser);

    double visit(Expr.NumberValue numberValue);

    double visit(Expr.NumberReference numberReference);

    boolean visit(Expr.Group group);
}