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polish / code review of data source embedded and init

This commit is contained in:
Keith Donald 2009-10-30 19:01:48 +00:00
parent 913bc03a3b
commit 3a3edb53f6
8 changed files with 53 additions and 42 deletions
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3
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/ConnectionProperties.java
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@ -18,6 +18,7 @@ package org.springframework.jdbc.datasource.embedded;
import java.sql.Driver;
/**
* DataSourceFactory helper that allows essential JDBC connection properties to be configured consistently,
* independent of the actual DataSource implementation.
@ -32,7 +33,7 @@ public interface ConnectionProperties {
* Set the JDBC driver to use to connect to the database.
* @param driverClass the jdbc driver class
*/
void setDriverClass(Class driverClass);
void setDriverClass(Class<? extends Driver> driverClass);
/**
* Sets the JDBC connection URL of the database.

2
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseBuilder.java
View File

@ -120,7 +120,7 @@ public class EmbeddedDatabaseBuilder {
* @param clazz the class to load relative to
* @return the embedded database builder
*/
public static EmbeddedDatabaseBuilder relativeTo(Class clazz) {
public static EmbeddedDatabaseBuilder relativeTo(Class<?> clazz) {
return new EmbeddedDatabaseBuilder(new ClassRelativeResourceLoader(clazz));
}

9
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType.java
View File

@ -25,6 +25,13 @@ package org.springframework.jdbc.datasource.embedded;
*/
public enum EmbeddedDatabaseType {
HSQL, H2, DERBY
/** The Hypersonic Embedded Java SQL Database (http://hsqldb.org) */
HSQL,
/** The H2 Embedded Java SQL Database Engine (http://h2database.com) */
H2,
/** The Apache Derby Embedded SQL Database (http://db.apache.org/derby) */
DERBY
}

9
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/H2EmbeddedDatabaseConfigurer.java
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@ -16,6 +16,8 @@
package org.springframework.jdbc.datasource.embedded;
import java.sql.Driver;
import org.springframework.util.ClassUtils;
/**
@ -30,22 +32,23 @@ final class H2EmbeddedDatabaseConfigurer extends AbstractEmbeddedDatabaseConfigu
private static H2EmbeddedDatabaseConfigurer INSTANCE;
private final Class<?> driverClass;
private final Class<? extends Driver> driverClass;
/**
* Get the singleton {@link H2EmbeddedDatabaseConfigurer} instance.
* @return the configurer
* @throws ClassNotFoundException if H2 is not on the classpath
*/
@SuppressWarnings("unchecked")
public static synchronized H2EmbeddedDatabaseConfigurer getInstance() throws ClassNotFoundException {
if (INSTANCE == null) {
INSTANCE = new H2EmbeddedDatabaseConfigurer(
ClassUtils.forName("org.h2.Driver", H2EmbeddedDatabaseConfigurer.class.getClassLoader()));
(Class<? extends Driver>) ClassUtils.forName("org.h2.Driver", H2EmbeddedDatabaseConfigurer.class.getClassLoader()));
}
return INSTANCE;
}
private H2EmbeddedDatabaseConfigurer(Class<?> driverClass) {
private H2EmbeddedDatabaseConfigurer(Class<? extends Driver> driverClass) {
this.driverClass = driverClass;
}

9
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/HsqlEmbeddedDatabaseConfigurer.java
View File

@ -16,6 +16,8 @@
package org.springframework.jdbc.datasource.embedded;
import java.sql.Driver;
import org.springframework.util.ClassUtils;
/**
@ -30,22 +32,23 @@ final class HsqlEmbeddedDatabaseConfigurer extends AbstractEmbeddedDatabaseConfi
private static HsqlEmbeddedDatabaseConfigurer INSTANCE;
private final Class<?> driverClass;
private final Class<? extends Driver> driverClass;
/**
* Get the singleton {@link HsqlEmbeddedDatabaseConfigurer} instance.
* @return the configurer
* @throws ClassNotFoundException if HSQL is not on the classpath
*/
@SuppressWarnings("unchecked")
public static synchronized HsqlEmbeddedDatabaseConfigurer getInstance() throws ClassNotFoundException {
if (INSTANCE == null) {
INSTANCE = new HsqlEmbeddedDatabaseConfigurer(
ClassUtils.forName("org.hsqldb.jdbcDriver", HsqlEmbeddedDatabaseConfigurer.class.getClassLoader()));
(Class<? extends Driver>) ClassUtils.forName("org.hsqldb.jdbcDriver", HsqlEmbeddedDatabaseConfigurer.class.getClassLoader()));
}
return INSTANCE;
}
private HsqlEmbeddedDatabaseConfigurer(Class<?> driverClass) {
private HsqlEmbeddedDatabaseConfigurer(Class<? extends Driver> driverClass) {
this.driverClass = driverClass;
}

11
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/SimpleDriverDataSourceFactory.java
View File

@ -17,10 +17,10 @@
package org.springframework.jdbc.datasource.embedded;
import java.sql.Driver;
import javax.sql.DataSource;
import org.springframework.jdbc.datasource.SimpleDriverDataSource;
import org.springframework.util.Assert;
/**
* Creates a {@link SimpleDriverDataSource}.
@ -35,17 +35,18 @@ final class SimpleDriverDataSourceFactory implements DataSourceFactory {
public ConnectionProperties getConnectionProperties() {
return new ConnectionProperties() {
@SuppressWarnings("unchecked")
public void setDriverClass(Class driverClass) {
Assert.isAssignable(Driver.class, driverClass);
dataSource.setDriverClass((Class<? extends Driver>) driverClass);
public void setDriverClass(Class<? extends Driver> driverClass) {
dataSource.setDriverClass(driverClass);
}
public void setUrl(String url) {
dataSource.setUrl(url);
}
public void setUsername(String username) {
dataSource.setUsername(username);
}
public void setPassword(String password) {
dataSource.setPassword(password);
}

4
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/init/DatabasePopulator.java
View File

@ -20,7 +20,7 @@ import java.sql.Connection;
import java.sql.SQLException;
/**
* Strategy used to populate an embedded database during initialization.
* Strategy used to populate a database during initialization.
*
* @author Keith Donald
* @since 3.0
@ -29,7 +29,7 @@ import java.sql.SQLException;
public interface DatabasePopulator {
/**
* Populate the database using the JDBC-based data access template provided.
* Populate the database using the JDBC connection provided.
* @param connection the JDBC connection to use to populate the db; already configured and ready to use
* @throws SQLException if an unrecoverable data access exception occurs during database population
*/

48
org.springframework.jdbc/src/main/java/org/springframework/jdbc/datasource/init/ResourceDatabasePopulator.java
View File

@ -49,11 +49,11 @@ public class ResourceDatabasePopulator implements DatabasePopulator {
private List<Resource> scripts = new ArrayList<Resource>();
private String sqlScriptEncoding;
private boolean continueOnError = false;
private boolean ignoreFailedDrops = false;
private boolean continueOnError = false;
/**
* Add a script to execute to populate the database.
* @param script the path to a SQL script
@ -69,29 +69,6 @@ public class ResourceDatabasePopulator implements DatabasePopulator {
public void setScripts(Resource[] scripts) {
this.scripts = Arrays.asList(scripts);
}
/**
* Flag to indicate that all failures in SQL should be logged but not cause a
* failure. Defaults to false.
*
* @param continueOnError the flag value to set
*/
public void setContinueOnError(boolean continueOnError) {
this.continueOnError = continueOnError;
}
/**
* Flag to indicate that a failed SQL <code>DROP</code> statement can be ignored.
* This is useful for non-embedded databases whose SQL dialect does not support
* an <code>IF EXISTS</code> clause in a <code>DROP</code>. The default is false
* so that if it the populator runs accidentally against an existing database it
* will fail fast when the script starts with a <code>DROP</code>.
*
* @param ignoreFailedDrops the flag value to set
*/
public void setIgnoreFailedDrops(boolean ignoreFailedDrops) {
this.ignoreFailedDrops = ignoreFailedDrops;
}
/**
* Specify the encoding for SQL scripts, if different from the platform encoding.
@ -103,9 +80,28 @@ public class ResourceDatabasePopulator implements DatabasePopulator {
this.sqlScriptEncoding = sqlScriptEncoding;
}
/**
* Flag to indicate that all failures in SQL should be logged but not cause a failure.
* Defaults to false.
* @param continueOnError the flag value to set
*/
public void setContinueOnError(boolean continueOnError) {
this.continueOnError = continueOnError;
}
/**
* Flag to indicate that a failed SQL <code>DROP</code> statement can be ignored.
* This is useful for non-embedded databases whose SQL dialect does not support an <code>IF EXISTS</code> clause in a <code>DROP</code>.
* The default is false so that if it the populator runs accidentally, it will failfast when the script starts with a <code>DROP</code>.
* @param ignoreFailedDrops the flag value to set
*/
public void setIgnoreFailedDrops(boolean ignoreFailedDrops) {
this.ignoreFailedDrops = ignoreFailedDrops;
}
public void populate(Connection connection) throws SQLException {
for (Resource script : this.scripts) {
executeSqlScript(connection, applyEncodingIfNecessary(script), continueOnError, ignoreFailedDrops);
executeSqlScript(connection, applyEncodingIfNecessary(script), this.continueOnError, this.ignoreFailedDrops);
}
}