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HHH-14282 StandardRefCursorSupport can rely on having JDK8 as baseline today

This commit is contained in:
Sanne Grinovero 2020-10-25 21:20:19 +00:00
parent 761a55b31d
commit 7870329b77
1 changed files with 6 additions and 69 deletions
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75
hibernate-core/src/main/java/org/hibernate/engine/jdbc/cursor/internal/StandardRefCursorSupport.java
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@ -86,18 +86,7 @@ public class StandardRefCursorSupport implements RefCursorSupport {
public ResultSet getResultSet(CallableStatement statement, int position) {
if ( jdbcServices.getExtractedMetaDataSupport().supportsRefCursors() ) {
try {
return (ResultSet) getResultSetByPositionMethod().invoke( statement, position, ResultSet.class );
}
catch (InvocationTargetException e) {
if ( e.getTargetException() instanceof SQLException ) {
throw jdbcServices.getSqlExceptionHelper().convert(
(SQLException) e.getTargetException(),
"Error extracting REF_CURSOR parameter [" + position + "]"
);
}
else {
throw new HibernateException( "Unexpected error extracting REF_CURSOR parameter [" + position + "]", e.getTargetException() );
}
return statement.getObject( position, ResultSet.class );
}
catch (Exception e) {
throw new HibernateException( "Unexpected error extracting REF_CURSOR parameter [" + position + "]", e );
@ -120,18 +109,7 @@ public class StandardRefCursorSupport implements RefCursorSupport {
public ResultSet getResultSet(CallableStatement statement, String name) {
if ( jdbcServices.getExtractedMetaDataSupport().supportsRefCursors() ) {
try {
return (ResultSet) getResultSetByNameMethod().invoke( statement, name, ResultSet.class );
}
catch (InvocationTargetException e) {
if ( e.getTargetException() instanceof SQLException ) {
throw jdbcServices.getSqlExceptionHelper().convert(
(SQLException) e.getTargetException(),
"Error extracting REF_CURSOR parameter [" + name + "]"
);
}
else {
throw new HibernateException( "Unexpected error extracting REF_CURSOR parameter [" + name + "]", e.getTargetException() );
}
return statement.getObject( name, ResultSet.class );
}
catch (Exception e) {
throw new HibernateException( "Unexpected error extracting REF_CURSOR parameter [" + name + "]", e );
@ -158,58 +136,17 @@ public class StandardRefCursorSupport implements RefCursorSupport {
* @return {@code true} if the metadata indicates that the driver defines REF_CURSOR support
*/
public static boolean supportsRefCursors(DatabaseMetaData meta) {
// Standard JDBC REF_CURSOR support was not added until Java 8, so we need to use reflection to attempt to
// access these fields/methods...
try {
return (Boolean) meta.getClass().getMethod( "supportsRefCursors" ).invoke( meta );
}
catch (NoSuchMethodException e) {
log.trace( "JDBC DatabaseMetaData class does not define supportsRefCursors method..." );
}
catch (Exception e) {
log.debug( "Unexpected error trying to gauge level of JDBC REF_CURSOR support : " + e.getMessage() );
return meta.supportsRefCursors();
}
catch (SQLException throwable) {
log.debug( "Unexpected error trying to gauge level of JDBC REF_CURSOR support : " + throwable.getMessage() );
return false;
}
}
private int refCursorTypeCode() {
return Types.REF_CURSOR;
}
private static Method getResultSetByPositionMethod;
private Method getResultSetByPositionMethod() {
if ( getResultSetByPositionMethod == null ) {
try {
getResultSetByPositionMethod = CallableStatement.class.getMethod( "getObject", int.class, Class.class );
}
catch (NoSuchMethodException e) {
throw new HibernateException( "CallableStatement class does not define getObject(int,Class) method" );
}
catch (Exception e) {
throw new HibernateException( "Unexpected error trying to access CallableStatement#getObject(int,Class)" );
}
}
return getResultSetByPositionMethod;
}
private static Method getResultSetByNameMethod;
private Method getResultSetByNameMethod() {
if ( getResultSetByNameMethod == null ) {
try {
getResultSetByNameMethod = CallableStatement.class.getMethod( "getObject", String.class, Class.class );
}
catch (NoSuchMethodException e) {
throw new HibernateException( "CallableStatement class does not define getObject(String,Class) method" );
}
catch (Exception e) {
throw new HibernateException( "Unexpected error trying to access CallableStatement#getObject(String,Class)" );
}
}
return getResultSetByNameMethod;
}
}