Spring Data - Mongo DB - search - spring-data

I have this domain object
#Document(collection = "LabelsPredefined")
public class LabelsPredefined {
#TextIndexed
private String name;
public LabelsPredefined() {
}
public String getName() {
return name;
}
public void setName(final String name) {
this.name = name;
}
#Override
public String toString() {
return "[LabelsPredefined]";
}
}
and I have an input at frontend with autocomplete. Therefore I will start searching when user enters first char. This is my Spring data repository method:
#Query("{$text : { $search : ?0 } }")
Set<LabelsPredefined> findLabelsPredefinedBySearchString(final String searchString);
My problem is that only if whole search strings matches name than method responses the object. Is there any possible solution?

I don't know this syntax:
#Query("{$text : { $search : ?0 } }")
Maybe you should try passing a TextCriteria instead of the string:
TextCriteria criteria = TextCriteria.forDefaultLanguage()
.matchingAny(searchString);
And changing your signature method to:
Set<LabelsPredefined> findLabelsPredefinedBySearchString(TextCriteria criteria);

Related

JPA2.0 property access in spring rest data -- some getters not being called

I am still somewhat of a novice with Spring Boot and Spring Data Rest and hope someone out there with experience in Accessing by Property. Since I cannot change a database which stores types for Letters in an unnormalized fashion (delimited string in a varchar), I thought that I could leverage some logic in properties to overcome this. However I notice that when using property access, some of my getters are never called.
My Model code:
package ...
import ...
#Entity
#Table(name="letters", catalog="clovisdb")
#Access(AccessType.PROPERTY)
public class Letter {
public enum PhoneticType {
VOWEL, SHORT, LONG, COMMON;
public static boolean contains(String s) { ... }
}
public enum PositionType {
ALL, INITIAL, MEDIAL, FINAL;
public static boolean contains(String s) { ... }
}
public enum CaseType {
ALL, LOWER, UPPER;
public static boolean contains(String s) { ... }
}
private int id;
private String name;
private String translit;
private String present;
private List<PhoneticType> phoneticTypes;
private CaseType caseType;
private PositionType positionType;
#Id
public int getId() { return id; }
public void setId(int id) { this.id = id; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public String getTranslit() { return translit; }
public void setTranslit(String translit) { this.translit = translit; }
public String getPresent() { return present; }
public void setPresent(String present) { this.present = present; }
public String getTypes() {
StringBuilder sb = new StringBuilder(); //
if (phoneticTypes!=null) for (PhoneticType type : phoneticTypes) sb.append(" ").append(type.name());
if (caseType!=null) sb.append(" ").append(caseType.name());
if (positionType!=null) sb.append(" ").append(positionType.name());
return sb.substring( sb.length()>0?1:0 );
}
public void setTypes(String types) {
List<PhoneticType> phoneticTypes = new ArrayList<PhoneticType>();
CaseType caseType = null;
PositionType positionType = null;
for (String val : Arrays.asList(types.split(" "))) {
String canonicalVal = val.toUpperCase();
if (PhoneticType.contains(canonicalVal)) phoneticTypes.add(PhoneticType.valueOf(canonicalVal));
else if (CaseType.contains(canonicalVal)) caseType = CaseType.valueOf(canonicalVal);
else if (PositionType.contains(canonicalVal)) positionType = PositionType.valueOf(canonicalVal);
}
this.phoneticTypes = phoneticTypes;
this.caseType = (caseType==null)? CaseType.ALL : caseType;
this.positionType = (positionType==null)? PositionType.ALL : positionType;
}
#Override
public String toString() { .... }
}
My Repository/DAO code:
package ...
import ...
#RepositoryRestResource
public interface LetterRepository extends CrudRepository<Letter, Integer> {
List<Letter> findByTypesLike(#Param("types") String types);
}
Hitting this URI: http://mytestserver.com:8080/greekLetters/6
and setting breakpoints on all the getters and setters, I can see that the properties are called in this order:
setId
setName
setPresent
setTranslit
setTypes
(getId not called)
getName
getTranslit
getPresent
(getTypes not called !!)
The json returned for the URI above reflects all the getters called, and there are no errors
{
"name" : "alpha",
"translit" : "`A/",
"present" : "Ἄ",
"_links" : {
"self" : {
"href" : "http://mytestserver.com:8080/letters/6"
}
}
}
But why is my getTypes() not being called and my JSON object missing the “types” attribute? I note that the setter is called, which makes it even stranger to me.
Any help would be appreciated!
Thanks in advance
That's probably because you don't have a field types, so getTypes() isn't a proper getter. Try adding this to your entity
#Transient
private String types;
I don't know how the inner works, but it's possible that the class is first scanned for its fields, and then a getter is called for each field. And since you don't have types field, the getter isn't called. Setter getting called could be a feature but I wouldn't be surprised if it is a bug, because findByTypesLike should translate to find Letters whose types field is like <parameter>, and types is not a field.
Another thing you can try, is to annotate that getter with #JsonInclude. Jackson 2 annotations are supported in Spring versions 3.2+ (also backported to 3.1.2).

how to insert object in mongodb

I have a class as follows:
package mongo;
import com.mongodb.BasicDBObject;
public class tweet extends BasicDBObject{
private String name;
private Integer id;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
}
Now I am trying to insert the object of this class into mongodb:
public void connect() throws UnknownHostException
{
MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
DB db = mongoClient.getDB( "test" );
tweet t=new tweet();
t.setId(100);
t.setName("Gggggg");
DBCollection Collection = null ;
Collection = db.getCollection("test");
DBObject doc = new BasicDBObject();
doc.put("first", t);
Collection.save( doc);
System.err.println(Collection.findOne());
}
But when I run this code, the object t is not inserted to the db and the system.err.println return the following:
{ "_id" : { "$oid" : "546c00efbadcd42088c8fee3"}}
How can I add the object into mongodb? Is it possible to do that?
BasicDBObject is actually a LinkedHashMap. So when you extend it, you need to put and retrieve values as you do it in a map.
So simply setting the values as attributes doesn't make sense, those attributes need to be put inside the Tweet map.
You need to modify your Tweet Class as follows:
class Tweet extends BasicDBObject{
public String getName() {
return (String)this.get("name");
}
public void setName(String name) {
this.put("name", name);
}
public Integer getId() {
return (Integer)this.get("_id");
}
public void setId(Integer id) {
this.put("_id", id);
}
}
and your main method as:
MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
DB db = mongoClient.getDB( "test" );
Tweet t=new Tweet();
t.setId(100);
t.setName("Ghorbani");
DBCollection collection = null ;
collection = db.getCollection("test");
collection.save(t);
System.err.println(collection.findOne());
If you notice,collection.save(t);, the Tweet object is being directly saved. That is how it should work.
o/p:
{ "_id" : 100 , "name" : "Ghorbani"}
You seem to be trying to set an ID for your object. Usually that is something that is done automatically from Mongo. Try removing t.setId(100); and then run your code again.
Tip - try using Mongoose to manage your connection to Mongo.

play2 java form binding - how to set field name to map to object?

Say I have the below test case
I want to be able to bind camel case parameters:
anyData.put("my_id", "bob#gmail.com");
How can I get this test to pass??
public class FormBindingExampleTest {
public static class FormBindingExampleModel {
public String myid;
public String email;
public String getMyid() {
return myid;
}
public void setMyid(String myid) {
this.myid = myid;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
#Test
public void itShouldBindForm(){
Form<FormBindingExampleModel> userForm = form(FormBindingExampleModel.class);
Map<String,String> anyData = new HashMap();
anyData.put("my_id", "bob#gmail.com");
anyData.put("email", "secret");
FormBindingExampleModel user = userForm.bind(anyData).get();
System.out.println(user.myid);
assert(user.myid.equals("bob#gmail.com"));
}
}
Use form's fill() method inorder to populate the form with existing value.
#Test
public void itShouldBindForm(){
Form<FormBindingExampleModel> userForm = form(FormBindingExampleModel.class);
FormBindingExampleModel formModel = new FormBindingExampleModel();
formModel.setMyid("bob#gmail.com");
formModel.setEmail("secret");
userForm.fill(formModel);
FormBindingExampleModel user = userForm.get();
System.out.println(user.getMyid);
assert(user.getMyid.equals("bob#gmail.com"));
}
Documentation available here.

BLOB as parameter in procedure call in mybatis

This is the call in the ProductServices.xml
<update id="resetPassword" parameterType="batchReport">
{ call user_account_mng.enc_reset_password(
#{user_Id,jdbcType=VARCHAR,mode=IN},
#{encrypted_password,jdbcType=VARCHAR,mode=IN},
#{usr_id, dbcType=VARCHAR,mode=IN},
#{salt,jdbcType=VARCHAR,mode=IN},
#{ret_code,jdbcType=CHAR,mode=OUT},
#{pgp_encrypted_password,jdbcType=BLOB,mode=IN}
)}
Now BatchReport is a POJO:
(i have declared an alias for it as batchReport)
public class BatchReport
{
private String user_Id;
private String encrypted_password;
private String usr_id;
private String salt;
private String ret_code;
private byte[] pgp_encrypted_password;
public String getUser_Id() {
return user_Id;
}
public void setUser_Id(String user_Id) {
this.user_Id = user_Id;
}
public String getEncrypted_password() {
return encrypted_password;
}
public void setEncrypted_password(String encrypted_password) {
this.encrypted_password = encrypted_password;
}
public String getUsr_id() {
return usr_id;
}
public void setUsr_id(String usr_id) {
this.usr_id = usr_id;
}
public String getSalt() {
return salt;
}
public void setSalt(String salt) {
this.salt = salt;
}
public String getRet_code() {
return ret_code;
}
public void setRet_code(String ret_code) {
this.ret_code = ret_code;
}
public byte[] getPgp_encrypted_password() {
return pgp_encrypted_password;
}
public void setPgp_encrypted_password(byte[] pgp_encrypted_password) {
this.pgp_encrypted_password = pgp_encrypted_password;
}
}
My main class is like this :
<BatchReport batchReport = new BatchReport();
byte[] byteArray =new byte[]{1,2,3};
batchReport.setUser_Id("CHI");
batchReport.setEncrypted_password("97D6B45");
batchReport.setSalt("71L");
batchReport.setPgp_encrypted_password(byteArray);
String returnCode = productServiceObj.resetPassword(batchReport);
i am getting following error:
Error setting null parameter. Most JDBC drivers require that the JdbcType must be specified for all nullable parameters. Cause: java.sql.SQLException: Invalid column type
The error may involve com.example.services.ProductServices.resetPassword-Inline
ProductServices is a class in which the method resetPassword is declared.
Please help me with this BLOB issue.
What should be the jdbcType in the called procedure.
what value should be passed in this pgp_encrypted_password.
Okay I found the solution to the problem now the jdbcType in the query in .xml file remains the same i.e BLOB.
Next the type which gets set for passing in the values is byte[].
So everything remains same as i have covered up .
Error actually existed as the in .xml file returns an integer indicating the number of rows changed in query and I have given the function return type as String so here goes the solution for the problem it should be of type Object.

AspectJ Pointcut to introspect a local method code and print a variable inside local method

I am trying to write a pointcut and advice which could print a string from following method -
public CustomerDto getCustomer(Integer customerCode){
CustomerDto customerDto = new CustomerDto();
String emailID =getEmailAddress();
customerDto.setEmailAddress(emailID);
customerDto.setEmployer(getEmployer());
customerDto.setSpouseName(getSpouse());
return customerDto;
}
I am unable to figure out a way by which a pointcut look at String emailID and then print the value of the same in an advice.
Maybe you need something like the following:
public privileged aspect LocalMethodCallAspect {
private pointcut localMethodExecution() : withincode(public CustomerDto TargetClass.getCustomer(Integer)) &&
call(private String TargetClass.getEmailAddress());
after() returning(String email) : localMethodExecution()
{
System.out.println(email);
}
}
Where TargetClass is a class containing getCustomer() and getEmailAddress() methods.
Or the same using #AspectJ:
#Aspect
public class LocalMethodCallAnnotationDrivenAspect {
#Pointcut("withincode(public CustomerDto TargetClass.getCustomer(Integer)) && " +
"call(private String TargetClass.getEmailAddress())")
private void localMethodExecution() {
}
#AfterReturning(pointcut="localMethodExecution()",returning="email")
public void printingEmail(String email) {
System.out.println(email);
}
}