Add soft update document

src/main/java/it/cavallium/dbengine/client/Indicizer.java

@@ -1,6 +1,7 @@
 package it.cavallium.dbengine.client;
 
 import it.cavallium.dbengine.database.LLIndexRequest;
+import it.cavallium.dbengine.database.LLSoftUpdateDocument;
 import it.cavallium.dbengine.database.LLUpdateDocument;
 import it.cavallium.dbengine.database.LLTerm;
 import it.cavallium.dbengine.database.LLUpdateFields;
@@ -24,6 +25,8 @@ public abstract class Indicizer<T, U> {
 				return new LLUpdateDocument(updateFields.items());
 			} else if (req instanceof LLUpdateDocument updateDocument) {
 				return updateDocument;
+			} else if (req instanceof LLSoftUpdateDocument softUpdateDocument) {
+				return new LLUpdateDocument(softUpdateDocument.items());
 			} else {
 				throw new UnsupportedOperationException("Unexpected request type: " + req);
 			}

src/main/java/it/cavallium/dbengine/database/LLIndexRequest.java

@@ -1,3 +1,3 @@
 package it.cavallium.dbengine.database;
 
-public sealed interface LLIndexRequest permits LLUpdateDocument, LLUpdateFields {}
+public sealed interface LLIndexRequest permits LLSoftUpdateDocument, LLUpdateDocument, LLUpdateFields {}

src/main/java/it/cavallium/dbengine/database/LLSoftUpdateDocument.java

@@ -0,0 +1,3 @@
+package it.cavallium.dbengine.database;
+
+public record LLSoftUpdateDocument(LLItem[] items, LLItem[] softDeleteItems) implements LLIndexRequest {}

src/main/java/it/cavallium/dbengine/database/LLUtils.java

@@ -127,8 +127,12 @@ public class LLUtils {
 	}
 
 	public static Document toDocument(LLUpdateDocument document) {
+		return toDocument(document.items());
+	}
+
+	public static Document toDocument(LLItem[] document) {
 		Document d = new Document();
-		for (LLItem item : document.items()) {
+		for (LLItem item : document) {
 			d.add(LLUtils.toField(item));
 		}
 		return d;

src/main/java/it/cavallium/dbengine/database/disk/LLLocalLuceneIndex.java

@@ -12,6 +12,7 @@ import it.cavallium.dbengine.client.LuceneOptions;
 import it.cavallium.dbengine.client.NRTCachingOptions;
 import it.cavallium.dbengine.client.query.current.data.QueryParams;
 import it.cavallium.dbengine.database.LLIndexRequest;
+import it.cavallium.dbengine.database.LLSoftUpdateDocument;
 import it.cavallium.dbengine.database.LLUpdateDocument;
 import it.cavallium.dbengine.database.LLItem;
 import it.cavallium.dbengine.database.LLLuceneIndex;
@@ -319,6 +320,11 @@ public class LLLocalLuceneIndex implements LLLuceneIndex {
 				.<Void>runSafe(() -> {
 					if (request instanceof LLUpdateDocument updateDocument) {
 						indexWriter.updateDocument(LLUtils.toTerm(id), LLUtils.toDocument(updateDocument));
+					} else if (request instanceof LLSoftUpdateDocument softUpdateDocument) {
+						indexWriter.softUpdateDocument(LLUtils.toTerm(id),
+								LLUtils.toDocument(softUpdateDocument.items()),
+								LLUtils.toFields(softUpdateDocument.softDeleteItems())
+						);
 					} else if (request instanceof LLUpdateFields updateFields) {
 						indexWriter.updateDocValues(LLUtils.toTerm(id), LLUtils.toFields(updateFields.items()));
 					} else {