An object which joins pieces of text (specified as an array, Iterable, varargs or even a Map) with a separator. It either appends the results to an Appendable or returns them as a String.
Questions tagged [joiner]
16 questions
5
votes
1 answer
How can I use Joiner, to join only specific properties?
Let's say I have this class:
public class MyClass {
private String propertyOne;
private String propertyTwo;
// getters setters...
}
Now, in my test method, I am trying something like:
List myList = myListDao.findAll();
String…
Koray Tugay
- 22,894
- 45
- 188
- 319
4
votes
4 answers
Join strings with different separators in Java
I have a list of strings, e.g. days of the week. And I'd like to join them on comma, with "and" before the last element. E.g: "I'm available on Tue, Wed, Thu and Fri".
Something elegant like
Joiner.on(", ").join(days)
Does not work. Is there an…
Scott Mayers
- 437
- 6
- 18
3
votes
2 answers
Java 7 - String Joiner & add method
I want to iterate through an array and only add the string to the new string if certain conditions are matched, and then seperate with a comma. IF I could use java 8 it would look like this:
StringJoiner col = new StringJoiner(",");
StringJoiner…
Al Grant
- 2,102
- 1
- 26
- 49
2
votes
1 answer
Getting Caused by: java.util.NoSuchElementException: None.get error when I use aggregate before stream-static join in structured streaming
import org.apache.spark._
import org.apache.spark.rdd._
import org.apache.spark.storage.StorageLevel._
import org.apache.spark.sql._
import org.apache.spark.sql.types._
import org.apache.spark.sql.functions._
import org.apache.spark.sql.functions.{…
VikAsh KuMar
- 79
- 7
1
vote
1 answer
1
vote
1 answer
Using enumset in Guava's joiner
I am working on converting an enumset into a string of values that are in the enumset. At the moment, I am using Joiner.on(',').join(enumset)) to create a string of values. However, I am wondering what are the ordering guarantees that enumset…
gmemon
- 2,573
- 5
- 32
- 37
1
vote
1 answer
Is it possible to apply joiner (collector, accumulator) over function using Java Guava?
Is it possible to collect Strings over collection while grouping? That's how it works in Java 8:
Map discountOptions = p.getDiscountOptions().Stream()
.collect(groupingBy(
this::getDiscountName,
…
max_dev
- 554
- 2
- 6
- 15
1
vote
3 answers
Number of records using normal joiner in informatica
I have a master table with one record:
employee Id
-----------
10
and detail table with 4 records:
employee Id1
-----------
10
20
10
10
My join condition is employee Id = employee Id1 with normal join type.
My question is which of the following…
aram
- 71
- 1
- 10
1
vote
2 answers
Joiner not ordering correctly?
I have the following code to to run Joiner to concat keys. However, they show up out of order.
BiMap whatever= HashBiMap.create();
{
whatever.put("First group", "f1");
whatever.put("This should really be…
genxgeek
- 13,109
- 38
- 135
- 217
0
votes
2 answers
joiner transformation query
I have
Flat File1 (F1) with these columns - key1, col1, col2
Flat File2 (F2) with these columns - key2, col1, col2
and one table (T1) with these columns - key3, col1, col2
Requirement is to get data from all 3 sources based on the below checks…
exp post
- 23
- 2
0
votes
1 answer
How to join three heterogeneous sources using single joiner
How to join three heterogeneous sources using single joiner sources? Maybe three flat files, references three different relational databases (Oracle, Teradata, SQL server) tables or one flat file, one oracle table, and one SQL server table.
We need…
Samir Patel
- 1
- 2
0
votes
0 answers
Joiner Transformation in Informatica PowerCenter - Trouble in joining duplicate values from source with target
I have following scenario
Source 1: Category_DTL
Category_ID Date Value
1 20180101 10
1 20180110 12
2 20180101 14
3 20180101 15
4 20180101 10
Source 2: Category_Master
Category_ID …
0
votes
1 answer
Error at com.google.common.base.Joiner.on()
java.lang.NullPointerException: null
at com.google.common.base.Preconditions.checkNotNull(Preconditions.java:770) ~[spigot-1.12.2.jar:git-Spigot-c3093ef-7e94e65]
at com.google.common.base.Joiner.toString(Joiner.java:454)…
Sage M
- 119
- 1
- 2
- 9
0
votes
2 answers
Not allowed to use Joiner transformation
I have an expression transformation from which I am passing the data to two different transformations.
Later in the downstream of these parallel flows, I am trying to apply a joiner transformation but I am not allowed to do so.,
Is joiner…
ASHISH GUPTA
- 61
- 4
0
votes
2 answers
How to join two tables in informatica without using JOINER transformation?
If we use Joiner , then it is taking to much time.
We have table A and Flat file B. A table has following fields Name , DEPT, SALARY.
File B has following fields NAME and DEPT. We have to match the NAME in between table and file B and update DEPT…
hadoop_geek
- 1
- 5