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Optimized use of JDBC 3.0 ParameterMetaData.getParameterType, caching information about drivers which do not support that feature

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Issue: SPR-11100
This commit is contained in:
Juergen Hoeller
2013-12-10 01:38:57 +01:00
parent 26d143868f
commit 4c8a7899f2
2 changed files with 148 additions and 32 deletions
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117
spring-jdbc/src/test/java/org/springframework/jdbc/core/StatementCreatorUtilsTests.java
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@@ -18,6 +18,7 @@ package org.springframework.jdbc.core;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.ParameterMetaData;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Types;
@@ -26,6 +27,7 @@ import java.util.GregorianCalendar;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.mockito.BDDMockito.*;
/**
@@ -41,46 +43,129 @@ public class StatementCreatorUtilsTests {
preparedStatement = mock(PreparedStatement.class);
}
@Test public void testSetParameterValueWithNullAndType() throws SQLException {
@Test
public void testSetParameterValueWithNullAndType() throws SQLException {
StatementCreatorUtils.setParameterValue(preparedStatement, 1, Types.VARCHAR, null, null);
verify(preparedStatement).setNull(1, Types.VARCHAR);
}
@Test public void testSetParameterValueWithNullAndTypeName() throws SQLException {
@Test
public void testSetParameterValueWithNullAndTypeName() throws SQLException {
StatementCreatorUtils.setParameterValue(preparedStatement, 1, Types.VARCHAR, "mytype", null);
verify(preparedStatement).setNull(1, Types.VARCHAR, "mytype");
}
@Test public void testSetParameterValueWithNullAndUnknownType() throws SQLException {
@Test
public void testSetParameterValueWithNullAndUnknownType() throws SQLException {
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(preparedStatement).setNull(1, Types.NULL);
}
@Test
public void testSetParameterValueWithNullAndUnknownTypeOnInformix() throws SQLException {
StatementCreatorUtils.driversWithNoSupportForGetParameterType.clear();
Connection con = mock(Connection.class);
DatabaseMetaData metaData = mock(DatabaseMetaData.class);
DatabaseMetaData dbmd = mock(DatabaseMetaData.class);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(metaData);
given(metaData.getDatabaseProductName()).willReturn("Informix Dynamic Server");
given(metaData.getDriverName()).willReturn("Informix Driver");
given(con.getMetaData()).willReturn(dbmd);
given(dbmd.getDatabaseProductName()).willReturn("Informix Dynamic Server");
given(dbmd.getDriverName()).willReturn("Informix Driver");
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(metaData).getDatabaseProductName();
verify(metaData).getDriverName();
verify(dbmd).getDatabaseProductName();
verify(dbmd).getDriverName();
verify(preparedStatement).setObject(1, null);
assertEquals(1, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
}
@Test public void testSetParameterValueWithNullAndUnknownTypeOnDerbyEmbedded() throws SQLException {
@Test
public void testSetParameterValueWithNullAndUnknownTypeOnDerbyEmbedded() throws SQLException {
StatementCreatorUtils.driversWithNoSupportForGetParameterType.clear();
Connection con = mock(Connection.class);
DatabaseMetaData metaData = mock(DatabaseMetaData.class);
DatabaseMetaData dbmd = mock(DatabaseMetaData.class);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(metaData);
given(metaData.getDatabaseProductName()).willReturn("Apache Derby");
given(metaData.getDriverName()).willReturn("Apache Derby Embedded Driver");
given(con.getMetaData()).willReturn(dbmd);
given(dbmd.getDatabaseProductName()).willReturn("Apache Derby");
given(dbmd.getDriverName()).willReturn("Apache Derby Embedded Driver");
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(metaData).getDatabaseProductName();
verify(metaData).getDriverName();
verify(dbmd).getDatabaseProductName();
verify(dbmd).getDriverName();
verify(preparedStatement).setNull(1, Types.VARCHAR);
assertEquals(1, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
}
@Test
public void testSetParameterValueWithNullAndGetParameterTypeWorking() throws SQLException {
StatementCreatorUtils.driversWithNoSupportForGetParameterType.clear();
ParameterMetaData pmd = mock(ParameterMetaData.class);
given(preparedStatement.getParameterMetaData()).willReturn(pmd);
given(pmd.getParameterType(1)).willReturn(Types.SMALLINT);
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(pmd).getParameterType(1);
verify(preparedStatement, never()).getConnection();
verify(preparedStatement).setNull(1, Types.SMALLINT);
assertTrue(StatementCreatorUtils.driversWithNoSupportForGetParameterType.isEmpty());
}
@Test
public void testSetParameterValueWithNullAndGetParameterTypeWorkingButNotForOtherDriver() throws SQLException {
StatementCreatorUtils.driversWithNoSupportForGetParameterType.clear();
StatementCreatorUtils.driversWithNoSupportForGetParameterType.add("Oracle JDBC Driver");
Connection con = mock(Connection.class);
DatabaseMetaData dbmd = mock(DatabaseMetaData.class);
ParameterMetaData pmd = mock(ParameterMetaData.class);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(dbmd);
given(dbmd.getDriverName()).willReturn("Apache Derby Embedded Driver");
given(preparedStatement.getParameterMetaData()).willReturn(pmd);
given(pmd.getParameterType(1)).willReturn(Types.SMALLINT);
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(dbmd).getDriverName();
verify(pmd).getParameterType(1);
verify(preparedStatement).setNull(1, Types.SMALLINT);
assertEquals(1, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
}
@Test
public void testSetParameterValueWithNullAndUnknownTypeAndGetParameterTypeNotWorking() throws SQLException {
StatementCreatorUtils.driversWithNoSupportForGetParameterType.clear();
Connection con = mock(Connection.class);
DatabaseMetaData dbmd = mock(DatabaseMetaData.class);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(dbmd);
given(dbmd.getDatabaseProductName()).willReturn("Apache Derby");
given(dbmd.getDriverName()).willReturn("Apache Derby Embedded Driver");
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(dbmd).getDatabaseProductName();
verify(dbmd).getDriverName();
verify(preparedStatement).setNull(1, Types.VARCHAR);
assertEquals(1, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
reset(preparedStatement, con, dbmd);
ParameterMetaData pmd = mock(ParameterMetaData.class);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(dbmd);
given(preparedStatement.getParameterMetaData()).willReturn(pmd);
given(pmd.getParameterType(1)).willThrow(new SQLException("unsupported"));
given(dbmd.getDatabaseProductName()).willReturn("Informix Dynamic Server");
given(dbmd.getDriverName()).willReturn("Informix Driver");
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(pmd).getParameterType(1);
verify(dbmd).getDatabaseProductName();
verify(dbmd).getDriverName();
verify(preparedStatement).setObject(1, null);
assertEquals(2, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
reset(preparedStatement, con, dbmd, pmd);
given(preparedStatement.getConnection()).willReturn(con);
given(con.getMetaData()).willReturn(dbmd);
given(dbmd.getDatabaseProductName()).willReturn("Informix Dynamic Server");
given(dbmd.getDriverName()).willReturn("Informix Driver");
StatementCreatorUtils.setParameterValue(preparedStatement, 1, SqlTypeValue.TYPE_UNKNOWN, null, null);
verify(preparedStatement, never()).getParameterMetaData();
verify(dbmd).getDatabaseProductName();
verify(dbmd).getDriverName();
verify(preparedStatement).setObject(1, null);
assertEquals(2, StatementCreatorUtils.driversWithNoSupportForGetParameterType.size());
}
@Test