src/main/java/org/lightcouch/CouchDbDesign.java
public Response synchronizeWithDb(DesignDocument document) {
		assertNotEmpty(document, "Document");
		DesignDocument documentFromDb = null;
		try {
			documentFromDb = getFromDb(document.getId());
		} catch (NoDocumentException e) {
			return dbc.save(document);
		}
		if(!document.equals(documentFromDb)) { 
			document.setRevision(documentFromDb.getRevision());
			return dbc.update(document);
		}
		return null;
	}
public Response synchronizeWithDb(DesignDocument document) {
		assertNotEmpty(document, "Document");
		DesignDocument documentFromDb = null;
		try {
			documentFromDb = getFromDb(document.getId());
		} catch (NoDocumentException e) {
			return dbc.save(document);
		}
		if(!document.equals(documentFromDb)) { 
			document.setRevision(documentFromDb.getRevision());
			return dbc.update(document);
		}
		return null;
	}
Synchronizes a design document to the Database.
<p>This method will first try to find a document in the database with the same id
as the given document, if it is not found then the given document will be saved to the database.
<p>If the document was found in the database, it will be compared with the given document using
{@code equals()}. If both documents are not equal, then the given document will be saved to the
database and updates the existing document.
@param document The design document to synchronize
@return {@link Response} as a result of a document save or update, or returns {@code null} if no
action was taken and the document in the database is up-to-date with the given document.