mirror of
https://github.com/moparisthebest/JdbcMapper
synced 2024-12-21 14:58:51 -05:00
First go at QueryRunner and Factory<Connection> arg for QueryMapper
This commit is contained in:
parent
09c114e106
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10
common/src/main/java/com/moparisthebest/jdbc/Factory.java
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10
common/src/main/java/com/moparisthebest/jdbc/Factory.java
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@ -0,0 +1,10 @@
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package com.moparisthebest.jdbc;
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import java.sql.SQLException;
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/**
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* Created by mopar on 7/1/17.
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*/
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public interface Factory<T> {
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T create() throws SQLException;
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}
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@ -0,0 +1,73 @@
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package com.moparisthebest.jdbc;
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import com.moparisthebest.jdbc.codegen.JdbcMapper;
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import java.sql.SQLException;
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import static com.moparisthebest.jdbc.TryClose.tryClose;
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/**
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* Created by mopar on 6/30/17.
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*/
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public class QueryRunner<T extends JdbcMapper> {
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private final Factory<T> factory;
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public QueryRunner(final Factory<T> factory) {
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if(factory == null)
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throw new NullPointerException("factory must be non-null");
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this.factory = factory;
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}
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public <E> E run(final Runner<T, E> query) throws SQLException {
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if(query == null)
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throw new NullPointerException("query must be non-null");
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T dao = null;
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try {
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dao = factory.create();
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return query.run(dao);
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} finally {
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tryClose(dao);
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}
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}
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public <E> E runInTransaction(final Runner<T, E> query) throws SQLException {
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if(query == null)
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throw new NullPointerException("query must be non-null");
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T dao = null;
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try {
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dao = factory.create();
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dao.getConnection().setAutoCommit(false);
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final E ret = query.run(dao);
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dao.getConnection().commit();
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return ret;
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} catch (final Throwable e) {
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if (dao != null) {
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try {
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dao.getConnection().rollback();
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} catch(SQLException excep) {
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// ignore to throw original
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}
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}
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if(e instanceof SQLException)
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throw (SQLException) e;
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if(e instanceof RuntimeException)
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throw (RuntimeException) e;
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throw new RuntimeException("odd error should never happen", e);
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} finally {
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if (dao != null) {
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try {
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dao.getConnection().setAutoCommit(true);
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} catch(SQLException excep) {
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// ignore
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}
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tryClose(dao);
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}
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}
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}
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public static interface Runner<T, E> {
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E run(T dao) throws SQLException;
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}
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}
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@ -1,24 +1,107 @@
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package com.moparisthebest.jdbc.codegen;
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import com.moparisthebest.jdbc.Factory;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.sql.Connection;
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import java.sql.SQLException;
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/**
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* Created by mopar on 5/24/17.
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*/
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public abstract class JdbcMapperFactory {
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public class JdbcMapperFactory<T> implements Factory<T> {
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static final String SUFFIX = "Bean";
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@SuppressWarnings("unchecked")
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public static <T> Class<? extends T> getImplementationClass(final Class<T> jdbcMapper) throws ClassNotFoundException {
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return (Class<? extends T>) Class.forName(jdbcMapper.getName() + SUFFIX);
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}
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public static <T> Constructor<? extends T> getConnectionConstructor(final Class<T> jdbcMapper) throws ClassNotFoundException, NoSuchMethodException {
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return getImplementationClass(jdbcMapper).getConstructor(Connection.class);
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}
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public static <T> Constructor<? extends T> getDefaultConstructor(final Class<T> jdbcMapper) throws ClassNotFoundException, NoSuchMethodException {
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return getImplementationClass(jdbcMapper).getConstructor();
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}
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public static <T> Constructor<? extends T> getFactoryConstructor(final Class<T> jdbcMapper) throws ClassNotFoundException, NoSuchMethodException {
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return getImplementationClass(jdbcMapper).getConstructor(Factory.class);
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}
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public static <T> T create(final Class<T> jdbcMapper, final Connection connection) {
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try {
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return (T) Class.forName(jdbcMapper.getName() + SUFFIX).getConstructor(Connection.class).newInstance(connection);
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return getConnectionConstructor(jdbcMapper).newInstance(connection);
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} catch (Throwable e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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}
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}
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public static <T> T create(final Class<T> jdbcMapper) {
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return create(jdbcMapper, null);
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try {
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return getDefaultConstructor(jdbcMapper).newInstance();
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} catch (Throwable e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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}
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}
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private final Constructor<? extends T> constructor;
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private final Object[] args;
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public JdbcMapperFactory(final Class<T> jdbcMapper) {
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try {
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this.constructor = getDefaultConstructor(jdbcMapper);
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this.args = null;
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} catch (Throwable e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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}
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}
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public JdbcMapperFactory(final Constructor<? extends T> constructor, final Object... args) {
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if(constructor == null)
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throw new NullPointerException("constructor must be non-null");
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this.constructor = constructor;
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this.args = args;
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}
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public JdbcMapperFactory(final Class<T> queryMapperClass, final Factory<Connection> connectionFactory) {
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if(queryMapperClass == null)
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throw new NullPointerException("queryMapperClass must be non-null");
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if(connectionFactory == null)
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throw new NullPointerException("connectionFactory must be non-null");
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try {
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this.constructor = queryMapperClass.getConstructor(Factory.class);
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} catch (NoSuchMethodException e) {
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throw new RuntimeException("queryMapperClass must have a constructor that takes Factory<Connection>", e);
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}
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this.args = new Object[]{connectionFactory};
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}
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public JdbcMapperFactory(final Class<T> queryMapperClass, final String jndiName) {
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if(queryMapperClass == null)
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throw new NullPointerException("queryMapperClass must be non-null");
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if(jndiName == null)
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throw new NullPointerException("jndiName must be non-null");
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try {
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this.constructor = queryMapperClass.getConstructor(String.class);
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} catch (NoSuchMethodException e) {
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throw new RuntimeException("queryMapperClass must have a constructor that takes String", e);
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}
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this.args = new Object[]{jndiName};
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}
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@Override
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public T create() throws SQLException {
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try {
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return this.constructor.newInstance(args);
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} catch (InstantiationException e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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} catch (IllegalAccessException e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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} catch (InvocationTargetException e) {
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throw new RuntimeException("could not create JdbcMapper, did the processor run at compile time?", e);
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}
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}
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}
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@ -22,7 +22,7 @@ import java.time.*;
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* Created by mopar on 5/24/17.
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*/
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@JdbcMapper.Mapper(
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// jndiName = "bob",
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jndiName = "bob",
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// databaseType = JdbcMapper.DatabaseType.ORACLE
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cachePreparedStatements = JdbcMapper.OptionalBool.FALSE
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// , sqlParser = SimpleSQLParser.class
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@ -22,8 +22,8 @@ public class CachingQueryMapper extends QueryMapper {
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protected final Map<String, PreparedStatement> cache;
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protected CachingQueryMapper(Connection conn, String jndiName, ResultSetMapper cm, final int maxEntries) {
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super(conn, jndiName, cm);
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protected CachingQueryMapper(Connection conn, String jndiName, Factory<Connection> factory, ResultSetMapper cm, final int maxEntries) {
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super(conn, jndiName, factory, cm);
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if (maxEntries > 0) { // we want a limited cache
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final float loadFactor = 0.75f; // default for HashMaps
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// if we set the initialCapacity this way, nothing should ever need re-sized
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@ -43,40 +43,56 @@ public class CachingQueryMapper extends QueryMapper {
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cache = new HashMap<String, PreparedStatement>();
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}
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protected CachingQueryMapper(Connection conn, String jndiName, Factory<Connection> factory, ResultSetMapper cm) {
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this(conn, jndiName, factory, cm, 20); // default size of 20
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}
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public CachingQueryMapper(Connection conn, ResultSetMapper cm, final int maxEntries) {
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this(conn, null, cm, maxEntries);
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this(conn, null, null, cm, maxEntries);
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}
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public CachingQueryMapper(Connection conn, final int maxEntries) {
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this(conn, null, null, maxEntries);
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this(conn, null, null, null, maxEntries);
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}
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public CachingQueryMapper(String jndiName, ResultSetMapper cm, final int maxEntries) {
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this(null, jndiName, cm, maxEntries);
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this(null, jndiName, null, cm, maxEntries);
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}
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public CachingQueryMapper(String jndiName, final int maxEntries) {
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this(null, jndiName, null, maxEntries);
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this(null, jndiName, null, null, maxEntries);
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}
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protected CachingQueryMapper(Connection conn, String jndiName, ResultSetMapper cm) {
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this(conn, jndiName, cm, 20); // default size of 20
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public CachingQueryMapper(Factory<Connection> factory, ResultSetMapper cm, final int maxEntries) {
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this(null, null, factory, cm, maxEntries);
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}
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public CachingQueryMapper(Factory<Connection> factory, final int maxEntries) {
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this(null, null, factory, null, maxEntries);
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}
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public CachingQueryMapper(Connection conn, ResultSetMapper cm) {
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this(conn, null, cm);
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this(conn, null, null, cm);
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}
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public CachingQueryMapper(Connection conn) {
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this(conn, null, null);
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this(conn, null, null, null);
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}
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public CachingQueryMapper(String jndiName, ResultSetMapper cm) {
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this(null, jndiName, cm);
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this(null, jndiName, null, cm);
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}
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public CachingQueryMapper(String jndiName) {
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this(null, jndiName, null);
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this(null, jndiName, null, null);
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}
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public CachingQueryMapper(Factory<Connection> factory, ResultSetMapper cm) {
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this(null, null, factory, cm);
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}
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public CachingQueryMapper(Factory<Connection> factory) {
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this(null, null, factory, null);
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}
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protected PreparedStatement getPreparedStatement(String sql) throws SQLException {
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@ -34,26 +34,26 @@ public class ListQueryMapper extends QueryMapper {
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public static final String inListReplace = "{inList}";
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private ListQueryMapper(Connection conn, String jndiName, QueryMapper delegate, ResultSetMapper cm, InList inList) {
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private ListQueryMapper(Connection conn, String jndiName, Factory<Connection> factory, QueryMapper delegate, ResultSetMapper cm, InList inList) {
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this.inList = inList;
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this.delegate = delegate == null ? new QueryMapper(conn, jndiName, cm) :
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this.delegate = delegate == null ? new QueryMapper(conn, jndiName, factory, cm) :
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(delegate instanceof ListQueryMapper ? ((ListQueryMapper)delegate).delegate : delegate);
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}
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public ListQueryMapper(QueryMapper delegate, InList inList) {
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this(null, null, delegate, null, inList);
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this(null, null, null, delegate, null, inList);
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}
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public ListQueryMapper(QueryMapper delegate) {
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this(null, null, delegate, null, defaultInList);
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this(null, null, null, delegate, null, defaultInList);
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}
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public ListQueryMapper(Connection conn, InList inList) {
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this(conn, null, null, null, inList);
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this(conn, null, null, null, null, inList);
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}
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public ListQueryMapper(Connection conn, ResultSetMapper cm, InList inList) {
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this(conn, null, null, cm, inList);
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this(conn, null, null, null, cm, inList);
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}
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public ListQueryMapper(Connection conn) {
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@ -65,11 +65,11 @@ public class ListQueryMapper extends QueryMapper {
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}
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public ListQueryMapper(String jndiName, InList inList) {
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this(null, jndiName, null, null, inList);
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this(null, jndiName, null, null, null, inList);
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}
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public ListQueryMapper(String jndiName, ResultSetMapper cm, InList inList) {
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this(null, jndiName, null, cm, inList);
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this(null, jndiName, null, null, cm, inList);
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}
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public ListQueryMapper(String jndiName) {
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@ -80,6 +80,23 @@ public class ListQueryMapper extends QueryMapper {
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this(jndiName, cm, defaultInList);
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}
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public ListQueryMapper(Factory<Connection> factory, InList inList) {
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this(null, null, factory, null, null, inList);
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}
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public ListQueryMapper(Factory<Connection> factory, ResultSetMapper cm, InList inList) {
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this(null, null, factory, null, cm, inList);
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}
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public ListQueryMapper(Factory<Connection> factory) {
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this(factory, defaultInList);
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}
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public ListQueryMapper(Factory<Connection> factory, ResultSetMapper cm) {
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this(factory, cm, defaultInList);
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}
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// todo: get rid of wrap, cause, how do you know to close it or not? :'(
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public static ListQueryMapper wrap(final QueryMapper qm){
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return qm instanceof ListQueryMapper ? (ListQueryMapper)qm : new ListQueryMapper(qm);
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}
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@ -16,25 +16,25 @@ public class NullQueryMapper extends QueryMapper {
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protected final boolean verbose;
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protected final QueryMapper delegate;
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private NullQueryMapper(Connection conn, String jndiName, QueryMapper delegate, ResultSetMapper cm, boolean verbose) {
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private NullQueryMapper(Connection conn, String jndiName, Factory<Connection> factory, QueryMapper delegate, ResultSetMapper cm, boolean verbose) {
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this.verbose = verbose;
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this.delegate = delegate == null ? new QueryMapper(conn, jndiName, cm) : delegate;
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this.delegate = delegate == null ? new QueryMapper(conn, jndiName, factory, cm) : delegate;
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}
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public NullQueryMapper(QueryMapper delegate, boolean verbose) {
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this(null, null, delegate, null, verbose);
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this(null, null, null, delegate, null, verbose);
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}
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public NullQueryMapper(QueryMapper delegate) {
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this(null, null, delegate, null, true);
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this(null, null, null, delegate, null, true);
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}
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public NullQueryMapper(Connection conn, boolean verbose) {
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this(conn, null, null, null, verbose);
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this(conn, null, null, null, null, verbose);
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}
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public NullQueryMapper(Connection conn, ResultSetMapper cm, boolean verbose) {
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this(conn, null, null, cm, verbose);
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this(conn, null, null, null, cm, verbose);
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}
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public NullQueryMapper(Connection conn) {
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@ -46,11 +46,11 @@ public class NullQueryMapper extends QueryMapper {
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}
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public NullQueryMapper(String jndiName, boolean verbose) {
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this(null, jndiName, null, null, verbose);
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this(null, jndiName, null, null, null, verbose);
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}
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public NullQueryMapper(String jndiName, ResultSetMapper cm, boolean verbose) {
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this(null, jndiName, null, cm, verbose);
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this(null, jndiName, null, null, cm, verbose);
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}
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public NullQueryMapper(String jndiName) {
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@ -61,6 +61,23 @@ public class NullQueryMapper extends QueryMapper {
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this(jndiName, cm, true);
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}
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public NullQueryMapper(Factory<Connection> factory, boolean verbose) {
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this(null, null, factory, null, null, verbose);
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}
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public NullQueryMapper(Factory<Connection> factory, ResultSetMapper cm, boolean verbose) {
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this(null, null, factory, null, cm, verbose);
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}
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public NullQueryMapper(Factory<Connection> factory) {
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this(factory, true);
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}
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public NullQueryMapper(Factory<Connection> factory, ResultSetMapper cm) {
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this(factory, cm, true);
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}
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// todo: remove this refer to ListQueryMapper for why
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public static NullQueryMapper wrap(final QueryMapper qm){
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return qm instanceof NullQueryMapper ? (NullQueryMapper)qm : new NullQueryMapper(qm);
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}
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@ -36,29 +36,40 @@ public class QueryMapper implements JdbcMapper {
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protected final ResultSetMapper cm;
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protected final Connection conn;
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protected final Context context;
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protected final boolean closeConn;
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protected QueryMapper(Connection conn, String jndiName, ResultSetMapper cm) {
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protected QueryMapper(Connection conn, final String jndiName, final Factory<Connection> factory, final ResultSetMapper cm) {
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this.cm = cm == null ? defaultRsm : cm;
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boolean closeConn = false;
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Context context = null;
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if (conn == null && jndiName != null)
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try {
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context = new InitialContext();
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DataSource ds = (DataSource) context.lookup(jndiName);
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conn = ds.getConnection();
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} catch (Throwable e) {
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e.printStackTrace();
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tryClose(conn);
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} finally {
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tryClose(context);
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}
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if(conn == null) {
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if (factory != null) {
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try {
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conn = factory.create();
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closeConn = true;
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} catch (SQLException e) {
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throw new RuntimeException("factory failed to create connection", e);
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}
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} else if (jndiName != null)
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try {
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context = new InitialContext();
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DataSource ds = (DataSource) context.lookup(jndiName);
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conn = ds.getConnection();
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closeConn = true;
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} catch (Throwable e) {
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tryClose(context);
|
||||
throw new RuntimeException("JNDI lookup failed to create connection", e);
|
||||
}
|
||||
}
|
||||
if (conn == null)
|
||||
throw new NullPointerException("Connection needs to be non-null for QueryMapper...");
|
||||
this.conn = conn;
|
||||
this.context = context;
|
||||
if (this.conn == null)
|
||||
throw new NullPointerException("Connection needs to be non-null for QueryMapper...");
|
||||
this.closeConn = closeConn;
|
||||
}
|
||||
|
||||
public QueryMapper(Connection conn, ResultSetMapper cm) {
|
||||
this(conn, null, cm);
|
||||
this(conn, null, null, cm);
|
||||
}
|
||||
|
||||
public QueryMapper(Connection conn) {
|
||||
@ -66,13 +77,21 @@ public class QueryMapper implements JdbcMapper {
|
||||
}
|
||||
|
||||
public QueryMapper(String jndiName, ResultSetMapper cm) {
|
||||
this(null, jndiName, cm);
|
||||
this(null, jndiName, null, cm);
|
||||
}
|
||||
|
||||
public QueryMapper(String jndiName) {
|
||||
this(jndiName, null);
|
||||
}
|
||||
|
||||
public QueryMapper(Factory<Connection> factory, ResultSetMapper cm) {
|
||||
this(null, null, factory, cm);
|
||||
}
|
||||
|
||||
public QueryMapper(Factory<Connection> factory) {
|
||||
this(factory, null);
|
||||
}
|
||||
|
||||
/**
|
||||
* Only meant to be called by implementing classes
|
||||
*/
|
||||
@ -80,11 +99,12 @@ public class QueryMapper implements JdbcMapper {
|
||||
this.cm = null;
|
||||
this.conn = null;
|
||||
this.context = null;
|
||||
this.closeConn = false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void close() {
|
||||
if (context != null) {
|
||||
if (closeConn) {
|
||||
tryClose(conn);
|
||||
tryClose(context);
|
||||
}
|
||||
|
@ -108,7 +108,7 @@ public class QueryMapperTest {
|
||||
}
|
||||
}
|
||||
|
||||
public static Connection getConnection() throws Throwable {
|
||||
public static Connection getConnection() throws SQLException {
|
||||
return DriverManager.getConnection("jdbc:derby:memory:derbyDB;create=true");
|
||||
}
|
||||
|
||||
|
@ -0,0 +1,62 @@
|
||||
package com.moparisthebest.jdbc;
|
||||
|
||||
import com.moparisthebest.jdbc.codegen.JdbcMapperFactory;
|
||||
import com.moparisthebest.jdbc.dto.Person;
|
||||
import org.junit.Assert;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.sql.Connection;
|
||||
import java.sql.SQLException;
|
||||
|
||||
import static com.moparisthebest.jdbc.QueryMapperTest.*;
|
||||
|
||||
/**
|
||||
* Created by mopar on 7/1/17.
|
||||
*/
|
||||
public class QueryRunnerTest {
|
||||
public static final QueryRunner<QueryMapper> qr = new QueryRunner<QueryMapper>(new JdbcMapperFactory<QueryMapper>(QueryMapper.class, new Factory<Connection>() {
|
||||
@Override
|
||||
public Connection create() throws SQLException {
|
||||
return QueryMapperTest.getConnection();
|
||||
}
|
||||
}));
|
||||
|
||||
private void testPerson(final Person expected, final String query) throws Throwable {
|
||||
final Person actual = qr.runInTransaction(new QueryRunner.Runner<QueryMapper, Person>() {
|
||||
@Override
|
||||
public Person run(final QueryMapper qm) throws SQLException {
|
||||
return qm.toObject(query, expected.getClass(), expected.getPersonNo());
|
||||
}
|
||||
});
|
||||
/*
|
||||
System.out.println("expected: " + expected);
|
||||
System.out.println("actual: " + actual);
|
||||
*/
|
||||
Assert.assertEquals(expected, actual);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testFieldRegularPerson() throws Throwable {
|
||||
testPerson(fieldPerson1, personRegular);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testFieldRegularAndUnderscore() throws Throwable {
|
||||
testPerson(fieldBoss1, bossRegularAndUnderscore);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testFieldRegularAndUnderscoreReverse() throws Throwable {
|
||||
testPerson(fieldBoss1, bossRegularAndUnderscoreReverse);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testFieldRegular() throws Throwable {
|
||||
testPerson(fieldBoss2, bossRegular);
|
||||
}
|
||||
|
||||
@Test
|
||||
public void testFieldUnderscore() throws Throwable {
|
||||
testPerson(fieldBoss3, bossUnderscore);
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue
Block a user