
org.soulwing.jdbc.AbstractPreparedStatementExecutor Maven / Gradle / Ivy
/*
* File created on Aug 5, 2015
*
* Copyright (c) 2015 Carl Harris, Jr
* and others as noted
*
* 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.soulwing.jdbc;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import javax.sql.DataSource;
import org.soulwing.jdbc.logger.JdbcLogger;
/**
* An abstract base for executing {@link PreparedStatement} objects.
*
* @author Carl Harris
*/
abstract class AbstractPreparedStatementExecutor
implements JdbcExecutor {
private final PreparedStatementCreator psc;
private final Parameter[] parameters;
private final JdbcLogger logger;
private E statement;
public AbstractPreparedStatementExecutor(PreparedStatementCreator psc,
Parameter[] parameters, JdbcLogger logger) {
this.psc = psc;
this.parameters = parameters;
this.logger = logger;
}
@Override
public T execute(DataSource dataSource) throws SQLException {
logger.writeStatement(psc.getStatementText());
logger.writeParameters(parameters);
statement = psc.prepareStatement(dataSource);
for (int index = 0, max = parameters.length; index < max; index++) {
parameters[index].inject(index + 1, statement);
}
return doExecute(statement);
}
/**
* Gets the statement that was prepared and executed
* @return statement
* @throws IllegalStateException if the statement has not been executed
*/
public E getStatement() {
if (statement == null) {
throw new IllegalStateException("no statement has been executed");
}
return statement;
}
/**
* Gets the statement parameters.
* @return parameters
*/
public Parameter[] getParameters() {
return parameters;
}
/**
* Executes the given statement.
* @param statement the statement to execute
* @return return value from statement execution
* @throws SQLException
*/
protected abstract T doExecute(E statement) throws SQLException;
}
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