Hi Mike/Linda
I am trying to fix the RI code to ensure that it uses the @Column
annotation specified by the user and ensure that the correct DDL gets
generated for the field. I have some questions regarding the "int
length()" in the @Column annotation.
The spec states that "int length - Applies only if a string-valued
column is used".
Does this mean that this would apply only to a field that the user has
defined as java.lang.String.
Will this length() also apply to a Clob field ?
Examples to further clarify my understanding:
1.
@Column(name="DESC")
public String getDescription() {
return description;
}
would ensure that we have a field created of the form
_/DESC VARCHAR(255) (in DERBY)/_
2.
@Column(name="DESC", length=55)
public String getDescription() {
return description;
}
would ensure that we have a field created of the form
_/DESC VARCHAR(55) (in DERBY)
/_
3.
@Lob
@Column(name="REPORT", length=1055)
public String getReport() {
return report;
}
do we create a field of the form
/REPORT CLOB(1055) ( in DERBY)
OR
REPORT CLOB(2147483647) (in Derby the max value for a CLOB is 2M )/
Further can the user define @Column:length for a blob type of field.
Thanks
Pramod