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 * Licensed under the Apache License, Version 2.0 (the "License");
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 *
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 * -----------------------------------------------------------------------------
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 * database integrations.
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 * For more information, please visit: http://www.jooq.org/licenses
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package org.jooq.impl;

import java.util.EnumMap;

import org.jooq.SQLDialect;

An internal utility class for SQL identifiers.
Author:
Lukas Eder/**
 * An internal utility class for SQL identifiers.
 *
 * @author Lukas Eder
 */
final class Identifiers {

    
The structure is:

SQLDialect -> {
    { main         start delimiter, alternative         start delimiter, ... },
    { main         end   delimiter, alternative         end   delimiter, ... },
    { main escaped end   delimiter, alternative escaped end   delimiter, ... },
      ...
}

/**
     * The structure is:
     * <p>
     * <pre>
     * SQLDialect -> {
     *     { main         start delimiter, alternative         start delimiter, ... },
     *     { main         end   delimiter, alternative         end   delimiter, ... },
     *     { main escaped end   delimiter, alternative escaped end   delimiter, ... },
     *       ...
     * }
     * </pre>
     */
    static final EnumMap<SQLDialect, char[][][]> QUOTES;
    static final int                             QUOTE_START_DELIMITER       = 0;
    static final int                             QUOTE_END_DELIMITER         = 1;
    static final int                             QUOTE_END_DELIMITER_ESCAPED = 2;

    static {
        QUOTES = new EnumMap<>(SQLDialect.class);

        for (SQLDialect family : SQLDialect.families()) {
            switch (family) {

                // MySQL supports backticks and double quotes




                case MARIADB:
                case MYSQL:
                    QUOTES.put(family, new char[][][] {
                        { { '`'      }, { '"'      } },
                        { { '`'      }, { '"'      } },
                        { { '`', '`' }, { '"', '"' } }
                    });
                    break;
















                // Most dialects implement the SQL standard, using double quotes









                case CUBRID:
                case DERBY:
                case FIREBIRD:
                case H2:
                case HSQLDB:
                case POSTGRES:
                case SQLITE:
                default:
                    QUOTES.put(family, new char[][][] {
                        { { '"'      } },
                        { { '"'      } },
                        { { '"', '"' } }
                    });
                    break;
            }
        }
    }
}