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Distinguish between complex reference and multi-constraint.

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Some initial code for unset-constraint in Node.unset()
TODO: we need to make sure Relation.getDbField() returns the
correct value for non-complex references!
This commit is contained in:
hns 2003-04-30 15:09:18 +00:00
parent 25d2e65674
commit 25255ad5da
2 changed files with 25 additions and 5 deletions
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13
src/helma/objectmodel/db/Node.java
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@ -2369,12 +2369,14 @@ public final class Node implements INode, Serializable {
Relation rel = (dbmap == null) ? null : dbmap.getPropertyRelation(propname); Relation rel = (dbmap == null) ? null : dbmap.getPropertyRelation(propname);
if (rel != null && rel.isComplexReference()) { if (rel != null && (rel.countConstraints() > 1 || rel.isComplexReference())) {
rel.setConstraints(this, n); rel.setConstraints(this, n);
if (rel.isComplexReference()) {
Key key = new MultiKey(n.getDbMapping(), rel.getKeyParts(this)); Key key = new MultiKey(n.getDbMapping(), rel.getKeyParts(this));
nmgr.nmgr.registerNode(n, key); nmgr.nmgr.registerNode(n, key);
return; return;
} }
}
Property prop = (propMap == null) ? null : (Property) propMap.get(p2); Property prop = (propMap == null) ? null : (Property) propMap.get(p2);
@ -2485,6 +2487,15 @@ public final class Node implements INode, Serializable {
if (state == CLEAN) { if (state == CLEAN) {
markAs(MODIFIED); markAs(MODIFIED);
} }
} else if (dbmap != null) {
// check if this is a complex constraint and we have to
// unset constraints.
Relation rel = dbmap.getExactPropertyRelation(propname);
if (rel != null && (rel.isComplexReference() || rel.countConstraints() > 1)) {
p = getProperty(propname);
System.err.println ("NEED TO UNSET: "+p.getNodeValue());
}
} }
} catch (Exception ignore) { } catch (Exception ignore) {
} }

11
src/helma/objectmodel/db/Relation.java
View file

@ -176,7 +176,7 @@ public final class Relation {
// check if this is a non-trivial reference // check if this is a non-trivial reference
if (reftype == REFERENCE) { if (reftype == REFERENCE) {
if (constraints.length > 1 || !usesPrimaryKey()) { if (constraints.length > 0 && !usesPrimaryKey()) {
reftype = COMPLEX_REFERENCE; reftype = COMPLEX_REFERENCE;
} }
} }
@ -323,6 +323,15 @@ public final class Relation {
return isPrivate; return isPrivate;
} }
/**
* Returns the number of constraints for this relation.
*/
public int countConstraints() {
if (constraints == null)
return 0;
return constraints.length;
}
/** /**
* Returns true if the object represented by this Relation has to be * Returns true if the object represented by this Relation has to be
* created dynamically by the Helma objectmodel runtime as a virtual * created dynamically by the Helma objectmodel runtime as a virtual