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* Make check for _prototype and _name column case insensitive when inserting relational objects

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* Implemented feature to evict certain prototypes from cache when they are received via replication.
   To activate this, add the line
        _evictOnReplication = true
  to the type.property file
This commit is contained in:
hns 2003-11-28 13:53:43 +00:00
parent d0c7012318
commit 48ed72b6b4
2 changed files with 25 additions and 3 deletions
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13
src/helma/objectmodel/db/DbMapping.java
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@ -110,6 +110,9 @@ public final class DbMapping implements Updatable {
// timestamp of last modification of an object of this type
long lastDataChange;
// evict objects of this type when received via replication
private boolean evictOnReplication;
/**
* Create an empty DbMapping
*/
@ -194,6 +197,8 @@ public final class DbMapping implements Updatable {
String parentSpec = props.getProperty("_parent");
evictOnReplication = "true".equals(props.getProperty("_evictOnReplication"));
if (parentSpec != null) {
// comma-separated list of properties to be used as parent
StringTokenizer st = new StringTokenizer(parentSpec, ",;");
@ -459,6 +464,14 @@ public final class DbMapping implements Updatable {
return protoField;
}
/**
* Should objects of this type be evicted/discarded/reloaded when received via
* cache replication?
*/
public boolean evictOnReplication() {
return evictOnReplication;
}
/**
* Translate a database column name to an object property name according to this mapping.
*/

13
src/helma/objectmodel/db/NodeManager.java
View file

@ -507,7 +507,7 @@ public final class NodeManager {
String name = columns[i].getName();
if (((rel != null) && (rel.isPrimitive() || rel.isReference())) ||
name.equals(nameField) || name.equals(prototypeField)) {
name.equalsIgnoreCase(nameField) || name.equalsIgnoreCase(prototypeField)) {
b1.append(", " + columns[i].getName());
b2.append(", ?");
}
@ -1967,11 +1967,20 @@ public final class NodeManager {
dbm.setLastDataChange(now);
}
n.lastParentSet = -1;
n.setDbMapping(dbm);
n.nmgr = safe;
if (dbm != null && dbm.evictOnReplication()) {
Node oldNode = (Node) cache.get(n.getKey());
if (oldNode != null) {
evictNode(oldNode);
}
} else {
n.lastParentSet = -1;
cache.put(n.getKey(), n);
}
}
for (Enumeration en = delete.elements(); en.hasMoreElements();) {
// NOTE: it would be more efficient to transfer just the keys