@Override
public final MVCCEntry wrapEntryForRemove(InvocationContext ctx, Object key)
throws InterruptedException {
CacheEntry cacheEntry = getFromContext(ctx, key);
MVCCEntry mvccEntry = null;
if (cacheEntry != null) {
if (cacheEntry instanceof MVCCEntry && !(cacheEntry instanceof NullMarkerEntry)) {
mvccEntry = (MVCCEntry) cacheEntry;
} else {
mvccEntry = wrapMvccEntryForRemove(ctx, key, cacheEntry);
}
} else {
InternalCacheEntry ice = getFromContainer(key);
if (ice != null) {
mvccEntry = wrapInternalCacheEntryForPut(ctx, key, ice);
}
}
if (mvccEntry == null) {
// make sure we record this! Null value since this is a forced lock on the key
ctx.putLookedUpEntry(key, null);
} else {
mvccEntry.copyForUpdate(container, localModeWriteSkewCheck);
}
return mvccEntry;
}
private MVCCEntry wrapEntry(InvocationContext ctx, Object key) {
CacheEntry cacheEntry = getFromContext(ctx, key);
MVCCEntry mvccEntry = null;
if (cacheEntry != null) {
mvccEntry = wrapMvccEntryForPut(ctx, key, cacheEntry);
} else {
InternalCacheEntry ice = getFromContainer(key);
if (ice != null) {
mvccEntry = wrapInternalCacheEntryForPut(ctx, ice.getKey(), ice);
}
}
if (mvccEntry != null) mvccEntry.copyForUpdate(container, localModeWriteSkewCheck);
return mvccEntry;
}
@Override
public final MVCCEntry wrapEntryForPut(
InvocationContext ctx, Object key, InternalCacheEntry icEntry, boolean undeleteIfNeeded)
throws InterruptedException {
CacheEntry cacheEntry = getFromContext(ctx, key);
MVCCEntry mvccEntry;
if (cacheEntry != null && cacheEntry.isNull()) cacheEntry = null;
if (cacheEntry != null) {
mvccEntry = wrapMvccEntryForPut(ctx, key, cacheEntry);
mvccEntry.undelete(undeleteIfNeeded);
} else {
InternalCacheEntry ice = (icEntry == null ? getFromContainer(key) : icEntry);
// A putForExternalRead is putIfAbsent, so if key present, do nothing
if (ice != null && ctx.hasFlag(Flag.PUT_FOR_EXTERNAL_READ)) return null;
mvccEntry =
ice != null ? wrapInternalCacheEntryForPut(ctx, key, ice) : newMvccEntryForPut(ctx, key);
}
mvccEntry.copyForUpdate(container, localModeWriteSkewCheck);
return mvccEntry;
}