Java: ArangoDB: Update multiple documents

ArangoCollection interface provides updateDocuments method to update multiple documents.

 

Signature

<T> MultiDocumentEntity<DocumentUpdateEntity<T>> updateDocuments(Collection<T> values, DocumentUpdateOptions options) throws ArangoDBException;

<T, U> MultiDocumentEntity<DocumentUpdateEntity<U>> updateDocuments(Collection<T> values, DocumentUpdateOptions options, Class<U> returnType) throws ArangoDBException;

'DocumentUpdateOptions' are used to provide additional options like keepNull, mergeObjects, silent, returnNew, returnOld etc.,

 

‘returnType’ specifies type of the returned newDocument and/or oldDocument

 

Example

DocumentUpdateOptions updateOptions = new DocumentUpdateOptions();
updateOptions.returnNew(true);
updateOptions.returnOld(true);
updateOptions.silent(false);

MultiDocumentEntity<DocumentUpdateEntity<BaseDocument>> updatedDocs = collection.updateDocuments(docsToUpdate, updateOptions);

Find the below working application.

 

DocumentsBulkUpdate.java

package com.sample.app;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import com.arangodb.ArangoCollection;
import com.arangodb.ArangoDB;
import com.arangodb.ArangoDatabase;
import com.arangodb.entity.BaseDocument;
import com.arangodb.entity.DocumentCreateEntity;
import com.arangodb.entity.DocumentUpdateEntity;
import com.arangodb.entity.MultiDocumentEntity;
import com.arangodb.mapping.ArangoJack;
import com.arangodb.model.DocumentCreateOptions;
import com.arangodb.model.DocumentUpdateOptions;

public class DocumentsBulkUpdate {
	private static final String USER_NAME = "root";
	private static final String PASSWORD = "tiger";
	private static final String HOST = "127.0.0.1";
	private static final int PORT = 8529;

	public static void main(String args[]) {
		// Get an ArangoDB instance
		ArangoDB arangoDB = new ArangoDB.Builder().user(USER_NAME).password(PASSWORD).host(HOST, PORT)
				.serializer(new ArangoJack()).build();

		String databaseName = "testdb";
		arangoDB.createDatabase(databaseName);

		ArangoDatabase arangoDatabase = arangoDB.db(databaseName);

		String collectionName = "test1";

		arangoDatabase.createCollection(collectionName);

		ArangoCollection collection = arangoDatabase.collection(collectionName);

		BaseDocument empDocument1 = new BaseDocument();
		empDocument1.addAttribute("firstName", "Krishna");
		empDocument1.addAttribute("lastName", "Gurram");
		empDocument1.addAttribute("hobbies", Arrays.asList("trekking", "playing cricket"));

		BaseDocument empDocument2 = new BaseDocument();
		empDocument2.addAttribute("firstName", "Joel");
		empDocument2.addAttribute("lastName", "Chelli");
		empDocument2.addAttribute("hobbies", Arrays.asList("designing games"));

		DocumentCreateOptions docOptions = new DocumentCreateOptions();
		docOptions.returnNew(true);

		MultiDocumentEntity<DocumentCreateEntity<BaseDocument>> persistedDocs = collection
				.insertDocuments(Arrays.asList(empDocument1, empDocument2), docOptions);

		Collection<DocumentCreateEntity<BaseDocument>> docs = persistedDocs.getDocuments();

		List<BaseDocument> docsToUpdate = new ArrayList<>();

		for (DocumentCreateEntity<BaseDocument> doc : docs) {
			BaseDocument docToUpdate = new BaseDocument();

			docToUpdate.setKey(doc.getKey());
			docToUpdate.addAttribute("country", "India");
			docsToUpdate.add(docToUpdate);
		}

		DocumentUpdateOptions updateOptions = new DocumentUpdateOptions();
		updateOptions.returnNew(true);
		updateOptions.returnOld(true);
		updateOptions.silent(false);

		MultiDocumentEntity<DocumentUpdateEntity<BaseDocument>> updatedDocs = collection.updateDocuments(docsToUpdate,
				updateOptions);
		Collection<DocumentUpdateEntity<BaseDocument>> updatedDocColl = updatedDocs.getDocuments();

		for (DocumentUpdateEntity<BaseDocument> updatedDoc : updatedDocColl) {
			System.out.println(updatedDoc.getNew());
		}

		// Dropping the collection and database
		collection.drop();
		arangoDatabase.drop();
		System.exit(0);
	}
}

Output

BaseDocument [documentRevision=_cS5Jf46---, documentHandle=test1/61495, documentKey=61495, properties={firstName=Krishna, lastName=Gurram, hobbies=[trekking, playing cricket], country=India}]
BaseDocument [documentRevision=_cS5Jf46--A, documentHandle=test1/61496, documentKey=61496, properties={firstName=Joel, lastName=Chelli, hobbies=[designing games], country=India}]

 

  

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