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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ParameterizedStatement.java | 0% | 0% | 0% | 0% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.contrib.jdbc;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.sql.Statement;
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import java.util.List;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* A wrapper around {@link PreparedStatement}.
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*
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* @author Howard Lewis Ship
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*
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**/
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public class ParameterizedStatement implements IStatement |
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{ |
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private static final Log LOG = LogFactory.getLog(ParameterizedStatement.class); |
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private String _SQL;
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private PreparedStatement _statement;
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private IParameter[] _parameters;
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/**
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* Create a new instance; the parameters list is copied.
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*
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* @param SQL the SQL to execute (see {@link Connection#prepareStatement(java.lang.String)})
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* @param connection the JDBC connection to use
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* @param parameters list of {@link IParameter}
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*
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**/
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public ParameterizedStatement(String SQL, Connection connection, List parameters) throws SQLException |
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{ |
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_SQL = SQL; |
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_statement = connection.prepareStatement(SQL); |
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_parameters = (IParameter[]) parameters.toArray(new IParameter[parameters.size()]);
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for (int i = 0; i < _parameters.length; i++) |
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{ |
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// JDBC numbers things from 1, not 0.
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_parameters[i].set(_statement, i + 1); |
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} |
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} |
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/**
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* Returns the SQL associated with this statement.
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*
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**/
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public String getSQL()
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{ |
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return _SQL;
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} |
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/**
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* Returns the underlying or {@link PreparedStatement}.
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*
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**/
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public Statement getStatement()
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{ |
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return _statement;
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} |
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/**
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* Closes the underlying statement, and nulls the reference to it.
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*
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**/
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public void close() throws SQLException |
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{ |
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_statement.close(); |
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_statement = null;
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_SQL = null;
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} |
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/**
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* Executes the statement as a query, returning a {@link ResultSet}.
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*
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**/
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public ResultSet executeQuery() throws SQLException |
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{ |
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if (LOG.isDebugEnabled())
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LOG.debug("Executing query: " + this); |
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return _statement.executeQuery();
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} |
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/**
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* Executes the statement as an update, returning the number of rows
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* affected.
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*
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**/
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public int executeUpdate() throws SQLException |
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{ |
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if (LOG.isDebugEnabled())
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LOG.debug("Executing update: " + this); |
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return _statement.executeUpdate();
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} |
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public String toString()
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{ |
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StringBuffer buffer = new StringBuffer("ParameterizedStatement@"); |
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buffer.append(Integer.toHexString(hashCode())); |
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buffer.append("[SQL=\n<");
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buffer.append(_SQL); |
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buffer.append("\n>");
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for (int i = 0; i < _parameters.length; i++) |
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{ |
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IParameter parameter = _parameters[i]; |
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buffer.append(" ?");
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buffer.append(i + 1); |
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buffer.append('='); |
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buffer.append(parameter); |
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} |
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buffer.append(']'); |
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return buffer.toString();
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} |
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} |
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