/* * Copyright 2012-2015 org.opencloudb. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.opencloudb.net.postgres; /** * <pre> * Bind (F) * Byte1('B') Identifies the message as a Bind command. * Int32 Length of message contents in bytes, including self. * String The name of the destination portal (an empty string selects the unnamed portal). * String The name of the source prepared statement (an empty string selects the unnamed * prepared statement). * Int16 The number of parameter format codes that follow (denoted C below). * This can be zero to indicate that there are no parameters or that the parameters * all use the default format(text); or one, in which case the specified format code * is applied to all parameters; or it can equal the actual number of parameters. * Int16[C] The parameter format codes. Each must presently be zero (text) or one(binary). * Int16 The number of parameter values that follow (possibly zero). This must match the * number of parameters needed by the query. Next, the following pair of fields appear * for each parameter: * Int32 The length of the parameter value, in bytes (this count does not include * itself). Can be zero. As a special case, -1 indicates a NULL parameter * value. No value bytes follow in the NULL case. * Byten The value of the parameter, in the format indicated by the associated format code. * n is the above length. After the last parameter, the following fields appear: * Int16 The number of result-column format codes that follow (denoted R * below). This can be zero to indicate that there are no result columns or * that the result columns should all use the default format (text); or one, * in which case the specified format code is applied to all result columns * (if any); or it can equal the actual number of result columns of the query. * Int16[R] The result-column format codes. Each must presently be zero (text) or one (binary). * </pre> * * @author mycat */ public class Bind extends PostgresPacket { }