Ok, I created a table with clob data type and execute "seam generate" command. It worked ok with around 1000 char, but if I enter more than 1000 char, I get the following error.

 ERROR [JDBCExceptionReporter] operation not allowed: streams type cannot be used in batching

++++++++++++++++++++++++++++++++++++++++++
,
 @NotEmpty
 @Lob
 private String content;


/**
  * @return the content
  */
 public String getContent() {
  return content;
 }

 /**
  * @param content the content to set
  */
 public void setContent(String content) {
  this.content = content;
 }
'

http://www.google.com/search?q=ERROR+[JDBCExceptionReporter]+operation+not+allowed%3A+streams+type+cannot+be+used+in+batching&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:nl:official