I have a List that supposed to be many-to-many (bidirectional)
This is the Filter class:
Code:
@ManyToMany(targetEntity=Serving.class)
@JoinTable(name = "BRIDGE_SERV_FILTER", joinColumns={
@JoinColumn(name="filter_id")}, inverseJoinColumns={@JoinColumn(name="serving_id")})
private List<Serving> servings;
public List<Serving> getServing() { return this.servings; }
public void setServing(List<Serving> servings) { this.servings = servings; }
and this is the Serving class:
Code:
@ManyToMany(targetEntity=Filter.class)
@JoinTable(name = "BRIDGE_SERV_FILTER", joinColumns={
@JoinColumn(name="serving_id")}, inverseJoinColumns={@JoinColumn(name="filter_id")})
private List<Filter> filters;
public List<Filter> getFilters() { return filters;}
public void setFilters(List<Filter> filters) { this.filters = filters;}
Then I supposed to call something to get all the filters from a serving, this is what I do (serv is of type Serving):
Code:
List<Filter> filters = serv.getFilters();
//iterate from all filter
for(Filter allf : allFilter)
{
boolean mark_this = false;
//..and matched the currently-iterated-all-filters with filter from
//which the serving got
for(com.pos.model.Filter f : filters)
{
//if matched, mark this current filter
if (allf.getId().equals(f.getId()))
mark_this = true;
}
tmodel.addRow(new Object[] { allf.getName(), mark_this });
}
that method is defined in the model, and it is static. so, when the form load, it calls like jTable.setTableModel(Filter.toTableModel(thisServing));
It reads, and it displayed the data. However, Hibernate also invokes delete as well:
Code:
Hibernate: select filter0_.filter_id as filter1_2_, filter0_.is_showable as is2_2_, filter0_.name as name2_ from DIM_FILTER filter0_ where is_showable=true
Hibernate: select filters0_.serving_id as serving1_4_1_, filters0_.filter_id as filter2_6_1_, filter1_.filter_id as filter1_2_0_, filter1_.is_showable as is2_2_0_, filter1_.name as name2_0_ from BRIDGE_SERV_FILTER filters0_ inner join DIM_FILTER filter1_ on filters0_.filter_id=filter1_.filter_id where filters0_.serving_id=?
Hibernate: delete from BRIDGE_SERV_FILTER where serving_id=?
In fact, I don't do any delete at all, and I don't ask hibernate to delete anything. Something that I don't understand might occur... how to prevent Hibernate from deletion? or there is anything that I done wrongly?
Funny things, if I do through command prompt, there is nothing wrong... the data still there if I read multiple of times. What I done wrong, please help me.
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