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Convenience constructors for CompositeDatabasePopulator 

Issue: SPR-14313
This commit is contained in:
Juergen Hoeller 2016-06-01 22:02:31 +02:00
parent ea728b15c8
commit ca9ffa2012
2 changed files with 126 additions and 7 deletions
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41
spring-jdbc/src/main/java/org/springframework/jdbc/datasource/init/CompositeDatabasePopulator.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2014 the original author or authors.
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -20,24 +20,53 @@ import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
/**
* {@link DatabasePopulator} implementation that delegates to a list of other
* Composite {@link DatabasePopulator} that delegates to a list of given
* {@code DatabasePopulator} implementations, executing all scripts.
*
* @author Dave Syer
* @author Juergen Hoeller
* @author Sam Brannen
* @author Kazuki Shimizu
* @since 3.1
*/
public class CompositeDatabasePopulator implements DatabasePopulator {
private List<DatabasePopulator> populators = new ArrayList<DatabasePopulator>();
private final List<DatabasePopulator> populators = new ArrayList<DatabasePopulator>(4);
/**
* Specify a list of populators to delegate to.
* Create an empty {@code CompositeDatabasePopulator}.
* @see #setPopulators
* @see #addPopulators
*/
public CompositeDatabasePopulator() {
}
/**
* Create a {@code CompositeDatabasePopulator} with the given populators.
* @param populators one or more populators to delegate to
* @since 4.3
*/
public CompositeDatabasePopulator(Collection<DatabasePopulator> populators) {
this.populators.addAll(populators);
}
/**
* Create a {@code CompositeDatabasePopulator} with the given populators.
* @param populators one or more populators to delegate to
* @since 4.3
*/
public CompositeDatabasePopulator(DatabasePopulator... populators) {
this.populators.addAll(Arrays.asList(populators));
}
/**
* Specify one or more populators to delegate to.
*/
public void setPopulators(DatabasePopulator... populators) {
this.populators.clear();
@ -51,9 +80,7 @@ public class CompositeDatabasePopulator implements DatabasePopulator {
this.populators.addAll(Arrays.asList(populators));
}
/**
* {@inheritDoc}
*/
@Override
public void populate(Connection connection) throws SQLException, ScriptException {
for (DatabasePopulator populator : this.populators) {

92
spring-jdbc/src/test/java/org/springframework/jdbc/datasource/init/CompositeDatabasePopulatorTests.java Normal file
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@ -0,0 +1,92 @@
/*
* Copyright 2002-2016 the original author or authors.
*
* 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.springframework.jdbc.datasource.init;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.LinkedHashSet;
import java.util.Set;
import org.junit.Test;
import static org.mockito.Mockito.*;
/**
* Unit tests for {@link CompositeDatabasePopulator}.
*
* @author Kazuki Shimizu
* @author Juergen Hoeller
* @since 4.3
*/
public class CompositeDatabasePopulatorTests {
private final Connection mockedConnection = mock(Connection.class);
private final DatabasePopulator mockedDatabasePopulator1 = mock(DatabasePopulator.class);
private final DatabasePopulator mockedDatabasePopulator2 = mock(DatabasePopulator.class);
@Test
public void addPopulators() throws SQLException {
CompositeDatabasePopulator populator = new CompositeDatabasePopulator();
populator.addPopulators(mockedDatabasePopulator1, mockedDatabasePopulator2);
populator.populate(mockedConnection);
verify(mockedDatabasePopulator1,times(1)).populate(mockedConnection);
verify(mockedDatabasePopulator2, times(1)).populate(mockedConnection);
}
@Test
public void setPopulatorsWithMultiple() throws SQLException {
CompositeDatabasePopulator populator = new CompositeDatabasePopulator();
populator.setPopulators(mockedDatabasePopulator1, mockedDatabasePopulator2); // multiple
populator.populate(mockedConnection);
verify(mockedDatabasePopulator1, times(1)).populate(mockedConnection);
verify(mockedDatabasePopulator2, times(1)).populate(mockedConnection);
}
@Test
public void setPopulatorsForOverride() throws SQLException {
CompositeDatabasePopulator populator = new CompositeDatabasePopulator();
populator.setPopulators(mockedDatabasePopulator1);
populator.setPopulators(mockedDatabasePopulator2); // override
populator.populate(mockedConnection);
verify(mockedDatabasePopulator1, times(0)).populate(mockedConnection);
verify(mockedDatabasePopulator2, times(1)).populate(mockedConnection);
}
@Test
public void constructWithVarargs() throws SQLException {
CompositeDatabasePopulator populator =
new CompositeDatabasePopulator(mockedDatabasePopulator1, mockedDatabasePopulator2);
populator.populate(mockedConnection);
verify(mockedDatabasePopulator1, times(1)).populate(mockedConnection);
verify(mockedDatabasePopulator2, times(1)).populate(mockedConnection);
}
@Test
public void constructWithCollection() throws SQLException {
Set<DatabasePopulator> populators = new LinkedHashSet<>();
populators.add(mockedDatabasePopulator1);
populators.add(mockedDatabasePopulator2);
CompositeDatabasePopulator populator = new CompositeDatabasePopulator(populators);
populator.populate(mockedConnection);
verify(mockedDatabasePopulator1, times(1)).populate(mockedConnection);
verify(mockedDatabasePopulator2, times(1)).populate(mockedConnection);
}
}