Class ModelCommitConflicts

java.lang.Object

io.fluxzero.common.modeling.ModelCommitConflicts

public final class ModelCommitConflicts
extends Object

Owns generic model-commit conflict detection and conflict-policy outcomes. Stores supply their current heads, optional relationship positions and the identities whose operation depends on a current relationship closure; storage-specific loading remains the store's responsibility.

Method Summary

Modifier and Type	Method	Description
static <H> List<ModelCommitConflict>	detect(CommitModels commit, Map<String, ? extends H> heads, ToLongFunction<? super H> sequenceNumber, ToLongFunction<? super H> stateIndex, Map<String,Long> relationStateIndices)	Detects stale read-state and expected-sequence conflicts in stable request order.
static <H> List<ModelCommitConflict>	detect(CommitModels commit, Map<String, ? extends H> heads, ToLongFunction<? super H> sequenceNumber, ToLongFunction<? super H> stateIndex, Map<String,Long> relationStateIndices, Iterable<String> relationshipSensitiveModelIds)	Detects ordinary model conflicts plus relationship-only changes for identities whose evaluated operation depended on their relationship closure, such as cascade-deletion roots.
static List<ModelCommitConflict>	detectErasedReads(CommitModels commit, List<ModelCommitConflict> existing, ToLongFunction<String> erasedPositions)	Adds conflicts for physically erased read identities without rejecting fresh reads of their absence.
static List<ModelCommitConflict>	detectRelationships(CommitModels commit, List<ModelCommitConflict> existing, ToLongFunction<ModelRelationshipRead> positions)	Adds membership conflicts using relationship positions read under the same atomic boundary as the write.
static CommitModelsResult	result(CommitModels commit, List<ModelCommitConflict> conflicts, long rebaseBoundary)	Maps detected conflicts to the outcome required by the commit's resolved conflict policy.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

detect

public static <H> List<ModelCommitConflict> detect(CommitModels commit,
 Map<String, ? extends H> heads,
 ToLongFunction<? super H> sequenceNumber,
 ToLongFunction<? super H> stateIndex,
 Map<String,Long> relationStateIndices)

Detects stale read-state and expected-sequence conflicts in stable request order.

No collection is allocated when the commit has no conflicts, and each model occurs at most once.

detect

public static <H> List<ModelCommitConflict> detect(CommitModels commit,
 Map<String, ? extends H> heads,
 ToLongFunction<? super H> sequenceNumber,
 ToLongFunction<? super H> stateIndex,
 Map<String,Long> relationStateIndices,
 Iterable<String> relationshipSensitiveModelIds)

Detects ordinary model conflicts plus relationship-only changes for identities whose evaluated operation depended on their relationship closure, such as cascade-deletion roots.

result

public static CommitModelsResult result(CommitModels commit,
 List<ModelCommitConflict> conflicts,
 long rebaseBoundary)

Maps detected conflicts to the outcome required by the commit's resolved conflict policy.

Returns:

null when there are no conflicts

detectErasedReads

public static List<ModelCommitConflict> detectErasedReads(CommitModels commit,
 List<ModelCommitConflict> existing,
 ToLongFunction<String> erasedPositions)

Adds conflicts for physically erased read identities without rejecting fresh reads of their absence.

detectRelationships

public static List<ModelCommitConflict> detectRelationships(CommitModels commit,
 List<ModelCommitConflict> existing,
 ToLongFunction<ModelRelationshipRead> positions)

Adds membership conflicts using relationship positions read under the same atomic boundary as the write.