001/* 002 * Copyright 2002-2017 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.jdbc.core.metadata; 018 019import java.sql.DatabaseMetaData; 020import java.sql.SQLException; 021 022import org.springframework.lang.Nullable; 023 024/** 025 * Sybase specific implementation for the {@link CallMetaDataProvider} interface. 026 * This class is intended for internal use by the Simple JDBC classes. 027 * 028 * @author Thomas Risberg 029 * @since 2.5 030 */ 031public class SybaseCallMetaDataProvider extends GenericCallMetaDataProvider { 032 033 private static final String REMOVABLE_COLUMN_PREFIX = "@"; 034 035 private static final String RETURN_VALUE_NAME = "RETURN_VALUE"; 036 037 038 public SybaseCallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException { 039 super(databaseMetaData); 040 } 041 042 043 @Override 044 @Nullable 045 public String parameterNameToUse(@Nullable String parameterName) { 046 if (parameterName == null) { 047 return null; 048 } 049 else if (parameterName.length() > 1 && parameterName.startsWith(REMOVABLE_COLUMN_PREFIX)) { 050 return super.parameterNameToUse(parameterName.substring(1)); 051 } 052 else { 053 return super.parameterNameToUse(parameterName); 054 } 055 } 056 057 @Override 058 public boolean byPassReturnParameter(String parameterName) { 059 return (RETURN_VALUE_NAME.equals(parameterName) || 060 RETURN_VALUE_NAME.equals(parameterNameToUse(parameterName))); 061 } 062 063}