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Flush our record from the cache if we update just some fields in the record. In

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the future we'll be extra clever and update just those fields in the cached
record if we have one.
This commit is contained in:
Michael Bayne
2007-05-23 00:54:15 +00:00
parent 54def9fe17
commit f711b36527
1 changed files with 9 additions and 3 deletions
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src/java/com/samskivert/jdbc/depot/DepotRepository.java
+9 -3
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@@ -270,7 +270,9 @@ public class DepotRepository
/** /**
* Updates just the specified fields of the supplied persistent object, using its primary key * Updates just the specified fields of the supplied persistent object, using its primary key
* to identify the row to be updated. * to identify the row to be updated. This method currently flushes the associated record from
* the cache, but in the future it should be modified to update the modified fields in the
* cached value iff the record exists in the cache.
* *
* @return the number of rows modified by this action. * @return the number of rows modified by this action.
*/ */
@@ -282,7 +284,8 @@ public class DepotRepository
if (key == null) { if (key == null) {
throw new IllegalArgumentException("Can't update record with null primary key."); throw new IllegalArgumentException("Can't update record with null primary key.");
} }
return _ctx.invoke(new CachingModifier<T>(record, key, key) { // by passing null as "result" we flush the record from the cache and don't restore it
return _ctx.invoke(new CachingModifier<T>(null, key, key) {
public int invoke (Connection conn) throws SQLException { public int invoke (Connection conn) throws SQLException {
PreparedStatement stmt = marsh.createUpdate(conn, _result, key, modifiedFields); PreparedStatement stmt = marsh.createUpdate(conn, _result, key, modifiedFields);
try { try {
@@ -376,7 +379,10 @@ public class DepotRepository
} }
/** /**
* Updates the specified columns for all persistent objects matching the supplied key. * Updates the specified columns for all persistent objects matching the supplied key. This
* method currently flushes the associated record from the cache, but in the future it should
* be modified to update the modified fields in the cached value iff the record exists in the
* cache.
* *
* @param type the type of the persistent object to be modified. * @param type the type of the persistent object to be modified.
* @param key the key to match in the update. * @param key the key to match in the update.