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Java JDBC 4.0 (JRE 6+) driver for PostgreSQL database

There is a newer version: 42.7.3

/*-------------------------------------------------------------------------
*
* Copyright (c) 2015, PostgreSQL Global Development Group
*
*
*-------------------------------------------------------------------------
*/
package org.postgresql.jdbc;

import org.postgresql.core.CachedQuery;
import org.postgresql.core.JdbcCallParseInfo;
import org.postgresql.core.Parser;
import org.postgresql.core.Query;
import org.postgresql.util.LruCache;

import java.sql.SQLException;

/**
 * Creates an instance of {@link CachedQuery} for a given connection.
 */
class CachedQueryCreateAction implements LruCache.CreateAction {
    private final int serverVersionNum;
    private final PgConnection connection;

    public CachedQueryCreateAction(PgConnection connection, int serverVersionNum)
    {
        this.connection = connection;
        this.serverVersionNum = serverVersionNum;
    }

    @Override
    public CachedQuery create(Object key) throws SQLException
    {
        String sql = key == null ? null : key.toString();
        String parsedSql = PgStatement.replaceProcessing(sql, true, connection.getStandardConformingStrings());
        boolean isFunction;
        boolean outParmBeforeFunc;
        if (key instanceof CallableQueryKey)
        {
            JdbcCallParseInfo callInfo = Parser.modifyJdbcCall(parsedSql, connection.getStandardConformingStrings(), serverVersionNum, connection.getProtocolVersion());
            parsedSql = callInfo.getSql();
            isFunction = callInfo.isFunction();
            outParmBeforeFunc = callInfo.isOutParmBeforeFunc();
        } else
        {
            isFunction = false;
            outParmBeforeFunc = false;
        }
        Query query = connection.getQueryExecutor().createParameterizedQuery(parsedSql);
        return new CachedQuery(key, query, isFunction, outParmBeforeFunc);
    }
}