spring-batch-partition | Batch Processing library
kandi X-RAY | spring-batch-partition Summary
kandi X-RAY | spring-batch-partition Summary
spring-batch-partition
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Start partition job
- Start a slave item reader
- Default paging query provider bean
- Export user
- The master slave
- The user process
- Step
- Add a dummy tasklet
- The master step
- The range partitioner
- Step2
- The simple task executor bean
- Set the thread name
- Partitions a grid size into a map of threads
- This method does nothing
- Entry point
spring-batch-partition Key Features
spring-batch-partition Examples and Code Snippets
Community Discussions
Trending Discussions on spring-batch-partition
QUESTION
I have developed a Spring Batch portioned example by taking a reference from : http://www.mkyong.com/spring-batch/spring-batch-partitioning-example/.
In this example I have configured the bean like below :
...ANSWER
Answered 2018-Jul-16 at 16:32You can use a nested value
element to specify the whereClause
query:
QUESTION
I am simply developing the Spring Batch partitioned code looking at http://www.mkyong.com/spring-batch/spring-batch-partitioning-example/ and already went through the link : Error Code 1292 - Truncated incorrect DOUBLE value - Mysql but it did not solved my purpose.
I have the following bean
...ANSWER
Answered 2018-Jul-16 at 07:16The error happens because the value stepExecutionContext[fromId]
is not evaluated as a SpEL expression and goes raw (as is) to the database server.
The example you linked to uses the correct syntax: but in your example you have:
without the
#{...}
.
Even though the syntax in the example of mkyong is correct, I would recommend using simple quotes around keys in the execution context () as it is mentioned in the official documentation here: https://docs.spring.io/spring-batch/4.0.x/reference/html/step.html#late-binding
QUESTION
I've a spring batch
inside spring boot
project which processes records present in an input file.
The number of records in the input file can vary anywhere between 1 to 1 million.
I want to leverage multi-threading by partitioning the batch, as mentioned here.
But I want the number of threads to be spawned should be decided on the basis of number of records in the input file.
Say, if records are <10,000 then only spawn 10 threads. If they are >10,000 && <50,000 then spawn 20 threads & so on.
But if I'm not wrong, while partitioning the batch you have to provide the gridSize
beforehand & implement Partitioner.class
on the basis of that.
This is causing me a problem since value of gridSize should be present in PartitionHandler bean
, like:
ANSWER
Answered 2018-Jan-09 at 01:19You Can use lazy Scopes using @StepScope
annotation to set Gride size
Option 1: if you want to set grid size from stepExecutionContext
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install spring-batch-partition
You can use spring-batch-partition like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the spring-batch-partition component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page