
重建包名
org.hibernate.type.descriptor.sql
重建类BasicBinder
代码如下
package org.hibernate.type.descriptor.sql; import java.sql.PreparedStatement;
import java.sql.SQLException; import org.hibernate.internal.CoreLogging;
import org.hibernate.type.descriptor.JdbcTypeNameMapper;
import org.hibernate.type.descriptor.ValueBinder;
import org.hibernate.type.descriptor.WrapperOptions;
import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
import org.jboss.logging.Logger; public abstract class BasicBinder<J> implements ValueBinder<J>{ private static final Logger log = CoreLogging.logger( BasicBinder.class ); private static final String BIND_MSG_TEMPLATE = "binding parameter [%s] as [%s] - [%s]";
private static final String NULL_BIND_MSG_TEMPLATE = "binding parameter [%s] as [%s] - [null]"; private final JavaTypeDescriptor<J> javaDescriptor;
private final SqlTypeDescriptor sqlDescriptor; public JavaTypeDescriptor<J> getJavaDescriptor() {
return javaDescriptor;
} public SqlTypeDescriptor getSqlDescriptor() {
return sqlDescriptor;
} public BasicBinder(JavaTypeDescriptor<J> javaDescriptor, SqlTypeDescriptor sqlDescriptor) {
this.javaDescriptor = javaDescriptor;
this.sqlDescriptor = sqlDescriptor;
} @Override
public final void bind(PreparedStatement st, J value, int index, WrapperOptions options) throws SQLException {
final boolean traceEnabled = log.isTraceEnabled(); if ( value == null ) {
if ( traceEnabled ) {
log.trace(
String.format(
NULL_BIND_MSG_TEMPLATE,
index,
JdbcTypeNameMapper.getTypeName( getSqlDescriptor().getSqlType() )
)
);
}
st.setNull( index, sqlDescriptor.getSqlType() );
}
else {
if ( traceEnabled ) {
log.trace(
String.format(
BIND_MSG_TEMPLATE,
index,
JdbcTypeNameMapper.getTypeName( sqlDescriptor.getSqlType() ),
getJavaDescriptor().extractLoggableRepresentation( value )
)
);
} doBind( st, value, index, options );
} System.out.println(st.toString());
} /**
* Perform the binding. Safe to assume that value is not null.
*
* @param st The prepared statement
* @param value The value to bind (not null).
* @param index The index at which to bind
* @param options The binding options
*
* @throws SQLException Indicates a problem binding to the prepared statement.
*/
protected abstract void doBind(PreparedStatement st, J value, int index, WrapperOptions options) throws SQLException; }
因为在hibernate机制中,就是用这个类是是执行更新插入sql语句的类,这里重写,把它覆盖