I have created an automatic full-text index on a vertex property.
OrientVertexType entryType = graph().createVertexType("Person");
entryType.createProperty("name", OType.STRING);
entryType.createIndex("Person.name", "FULLTEXT", new String[] { "name" });
Now i would like to programmatically query this full text index. For example to search all persons with a name starting with "Seb".
OIndex<?> nameIndex = graph().createVertexType("Person").getClassIndex("Person.name");
// nameIndex.query("%Seb%");
How can i do this ?
You can use:
nameIndex.get("Seb");
Related
I have a smart table that shows data from odata service. all properties of the entity type are Edm.String.
now i can set a filter for each column of the resulting table with a lot of filter operators.
My goal is to filter the list of available filter operators depending on the selected column.
e.g.
selected colum 'A' then allow only 'equal to'.
Is that somehow possible? I would like to solve it in front end code.
I didn't find anything like that in ui5 docu...
you need to use equals FilterOperator
here is a link for FilterOperator and another example how to use filter in grid table https://sapui5.hana.ondemand.com/
Here is a quick example of setting more than one filter each with different Filter Operator
filterGlobally : function(oEvent) {
var sQuery = oEvent.getParameter("query");
this._oGlobalFilter = null;
if (sQuery) {
this._oGlobalFilter = new Filter([
new Filter("columA", FilterOperator.EQ, sQuery),
new Filter("columB", FilterOperator.Contains, sQuery)
], false);
}
var oFilter = null;
if (this._oGlobalFilter) {
oFilter = new Filter([this._oGlobalFilter], true);
}
this.byId("idTable").getBinding().filter(oFilter, "Application");
I am having some trouble finding a way to update, i.e. modify or delete a certain document in an embedded list. Here is my case:
CREATE CLASS Tag EXTENDS V
CREATE PROPERTY Tag.label STRING
CREATE CLASS Profession
CREATE PROPERTY Profession.jobtitle STRING
CREATE PROPERTY Profession.tags LINKSET Tag
CREATE CLASS UserProfile EXTENDS V
CREATE PROPERTY UserProfile.screenname STRING
CREATE PROPERTY UserProfile.profession EMBEDDEDLIST Profession
So, adding an entry to UserProfile.profession is no problem:
UPDATE UserProfile ADD profession =
{"#type":"d","#class":"Profession","jobtitle":"Actress", "tags" : ["#22:5"]}
WHERE screenname = 'emma'
Given some entry 'emma' for UserProfile and a Tag with id #22:5.
However, when I try to update the Profession-document with jobtitle 'Actress', how exactly should I proceed? I tried the following approach, which worked with but one entry in the list only:
UPDATE UserProfile SET profession =
{"#type":"d","#class":"Profession","jobtitle":"Actress", "tags" : ["#22:7", "#22:9"]}
WHERE profession.jobtitle = 'Actress'
AND screenname = 'emma'
This statement throws no exception and returns 0 as number of affected records.
In general: How do I access a specific entry (using a key of the document itself) in an embedded list or set to update or remove it?
Also: is there an easier way to update the tags linkset in the Profession-document in the embedded list? Or do I always have to get the whole document and write a modified version back?
Thanks!
Ingo
You can use
UPDATE UserProfile set profession = [{"#type":"d","#class":"Profession","jobtitle":"Actress", "tags" : ["#22:7", "#22:9"]}]
WHERE profession.jobtitle contains "Actress" AND screenname = 'emma'
UPDATE
You could use this javascript function
var g=orient.getGraph();
var b=g.command("sql","select from userprofile");
var tag1=g.command("sql","select from #22:7");
var tag2=g.command("sql","select from #22:9");
for(i=0;i<b.length;i++){
var screenname= b[i].getProperty("screenname");
if(screenname=="emma"){
var pro=b[i].getProperty("profession");
for(j=0;j<pro.length;j++){
if(pro[j].field("jobtitle")=="Actress"){
pro[j].field("tags",[tag1[0],tag2[0]]);
}
}
b[i].save();
}
}
try this
UPDATE UserProfile SET profession.jobtitle = 'aaaa'
WHERE profession.jobtitle = 'Actress'
AND screenname = 'emma'
Im using the C driver to make operations on mongoDB , when i do simple "find" operation
shown here :
while (mongoc_cursor_next (cursor, &doc)) {
str = bson_as_json (doc, NULL);
printf ("%s\n", str);
bson_free (str);
}
i want to know if there is any way to get the bson objects without converting to json string as shown in the c++ driver shown here :
https://github.com/mongodb/mongo-cxx-driver/blob/master/examples/bsoncxx/getting_values.cpp
auto doc = build_doc.view();
// Once we have the document view, we can use ["key"] or [index] notation to reach into nested
// documents or arrays.
auto awards = doc["awards"];
auto first_award_year = awards[0]["year"];
auto second_award_year = doc["awards"][1]["year"];
auto last_name = doc["name"]["last"];
// If the key doesn't exist, or index is out of bounds, we get invalid elements.
auto invalid1 = doc["name"]["middle"];
auto invalid2 = doc["contribs"][1000];
I need to do the full text search in the MongoDB (version 2.4). I use the following fragment of code.
DBObject textSearchCommand = new BasicDBObject();
textSearchCommand.put("text", "profile");
textSearchCommand.put("search", pattern);
textSearchCommand.put("limit", searchLimit);
textSearchCommand.put("filter",new BasicDBObject("personInfo", new BasicDBObject("$ne",null)));
CommandResult commandResult = mongoTemplate.executeCommand(textSearchCommand);
BasicDBList results = (BasicDBList) commandResult.get("results");
It works well but I want to exclude one field (person picture data) from the text search.
Note: I don't want to exclude this field from the result. I want that MongoDB does not search in this field.
Which fields to search in is determined when you create the text index. When you only want the text index to apply to selected fields, you need to provide these fields at creation like this for example:
db.articles.createIndex(
{
title: "text",
synopsis: "text",
content: "text",
tags: "text"
}
)
When this is not an option for some reason (like when you don't know all possible field names which might be relevant for text search), an (admittedly dirty) workaround could be to store the non-searchable content in a different data-type than a string, for example as binary data.
Team,
I have 6 indexed columns to search as below.
Name
Description
SKU
Category
Price
SearchCriteria
Now, While searching I have need to perform search on "SearchCritera" column first then rest of the columns.
In short - The products with matched "SearchCritera" shold display on the top of search results.
var parser = new MultiFieldQueryParser(Version.LUCENE_30,
new[] { "SearchCriteria",
"Name",
"Description",
"SKU",
"Category",
"Price"
}, analyzer);
var query = parseQuery(searchQuery, parser);
var finalQuery = new BooleanQuery();
finalQuery.Add(parser.Parse(searchQuery), Occur.SHOULD);
var hits = searcher.Search(finalQuery, null, hits_limit, Sort.RELEVANCE);
There are 2 ways to do it.
The first method is using field boosting:
During indexing set a boost to the fields by their priority:
Field name = new Field("Name", strName, Field.Store.NO, Field.Index.ANALYZED);
name.Boost = 1;
Field searchCriteria = new Field("SearchCriteria", strSearchCriteria, Field.Store.NO, Field.Index.ANALYZED);
searchCriteria.Boost = 2;
doc.Add(name);
doc.Add(searchCriteria);
This way the scoring of the terms in SearchCriteria field will be doubled then the scoring of the terms in the Name field.
This method is better if you always wants SearchCriteria to be more important than Name.
The second method is to using MultiFieldQueryParser boosting during search:
Dictionary<string,float> boosts = new Dictionary<string,float>();
boosts.Add("SearchCriteria",2);
boosts.Add("Name",1);
MultiFieldQueryParser parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30new[], new[] { "SearchCriteria", "Name"}, analyzer, boosts);
This method is better if you want the boosting to work only in some scenarios of your application.
You should try and see if the boosting number fits your needs (the sensitivity of the priority you are looking for) and change them according to your needs.
to make the example short and readable I used only 2 of your fields but you should use all of them of curse…