Hello I want to create a mapping with this kind of configuration :
CREATE TABLE A (
name VARCHAR(50),
PRIMARY KEY (name)
);
CREATE TABLE B (
name VARCHAR(50),
a VARCHAR(50),
PRIMARY KEY (name, a),
FOREIGN KEY (a) REFERENCES A (name)
);
CREATE TABLE C (
name VARCHAR(50),
a VARCHAR(50),
PRIMARY KEY (name, a),
FOREIGN KEY (a) REFERENCES A (name)
);
CREATE TABLE BtoC
(ouai
b VARCHAR(50) PRIMARY KEY
c VARCHAR(50) PRIMARY KEY,
a VARCHAR(50) PRIMARY KEY,
FOREIGN KEY (b, a) REFERENCES B (b, a),
FOREIGN KEY (c, a) REFERENCES C (c, a)
)
<class-descriptor class="B" table="B">
<field-descriptor id="1" name="name" column="name"
jdbc-type="VARCHAR" primarykey="true"/>
<field-descriptor id="2" name="a" column="a"
jdbc-type="VARCHAR" primarykey="true"/>
<collection-descriptor>
<fk-pointing-to-this-class column="b"/>
<fk-pointing-to-this-class column="a"/>
<fk-pointing-to-element-class column="c"/>
<fk-pointing-to-this-class column="a"/>
</collection-descriptor>
</class-descriptor>
<class-descriptor class="C" table="C">
<field-descriptor id="1" name="name" column="name"
jdbc-type="VARCHAR" primarykey="true"/>
<field-descriptor id="2" name="name" column="name"
jdbc-type="VARCHAR" primarykey="true"/>
</class-descriptor>
With this configuration I get an SQL error :
INSERT INTO dsclusters (b,a,c,a) VALUES ( 'b','a','c','a' )
ERROR: Attribute 'a' specified more than once
Is this due to the <collection-descriptor> element in class b ?
If i add a column in BtoC table that reference the a column of table C,
that works fine, so i can imagine that this configuration is a
limitation of OJB, am I wrong ?
--
Kevin Viet <[EMAIL PROTECTED]>
ActiVia Networks
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