eager database fetching: efficiently load related objects along with the objects being queried.
(contrast with lazy fetching or lazy loading)
Related tags
Questions tagged [eager]
134 questions
1
vote
1 answer
Laravel 5.6 eager load nested childrelations
I'm having an issue with getting child relations from a Card object to a User object. The relations are as following:
'User' -> hasOne 'Company'
'Company' -> hasMany 'Card'
So the other way around is:
'Card' -> belongsTo 'Company'
'Company' ->…
Dennis Prins
- 87
- 7
1
vote
0 answers
single prediction for a neural network ( tensorflow, eager execution )
I'm quite new to tensorflow and python and I'm working on a neural network that is able to classify the sounds of the Urban Sound dataset (https://urbansounddataset.weebly.com/urbansound8k.html).
I used the crash course on machine learning tutorial…
SCIUGU
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- 2
1
vote
1 answer
Cannot run tf.enable_eager_execution() in Jupyter notebook
Following this doc: , I am trying to run these lines after installing tensorflow with version 1.8.0 and python version is 2.7.13.
*import tensorflow as tf
tf.enable_eager_execution()*
I go to jupyter notebook in the top directory where tensorflow…
Xiaochen Zhang
- 11
- 2
1
vote
1 answer
How do I load a checkpoint using tensorflow in eager execution mode?
I am using tensorflow 1.7.0 in eager execution mode. I have the model working, but none of the examples that I have found for saving the model work.
This is the code that I am using:
checkpoint_directory ='./JokeWords/'
checkpoint_prefix =…
user2793857
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1
vote
0 answers
How to use OmniFaces @Eager annotation with PrimeFaces?
PrimeFaces and OmniFaces can be used together in a JSF project. My project is using PrimeFaces 6.1 and works fine. However simply declaring the Maven dependency for OmniFaces
org.omnifaces
…
Kalle Richter
- 8,008
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- 177
1
vote
1 answer
Get object only when relation result is exist [laravel]
I have a problem with get data only when relation query count is more than 0.
This is my model of customer with relation
class Customer extends Model
{
protected $table = 'customers';
public function contracts()
{
return…
underface
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- 6
1
vote
1 answer
EAGER and Pagination : Spring MVC + JPA Repository + Hibernate
I have a entity A which has a relation @OneToMany with a entity B (fetch mode = EAGER). Entitity A has other relations in LAZY with other entities too, but isn't important for this problem.
Entity B has a relation @ManyToOne with entity A too (fech…
Yeray Ventura Garcia
- 56
- 12
1
vote
2 answers
Eager Loading on autogenerated argument in Laravel
I have this route call:
Route::resource('products', 'ProductController', ['except' => ['show']]);
So if I enter /products/438/edit it calls my edit method on controller, that is something like that:
public function edit(Product $product){}
where…
Rocco Milluzzo
- 997
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- 16
1
vote
0 answers
Issues with partitioning
Looking for scale out option for my SQL server database.
I have a table that has 15 million rows and it adds 10,000 rows every day.
From various options available to scale out I opted for partitioning, as changes need to be done only in database and…
Puneet Pathak
- 51
- 2
1
vote
1 answer
java.lang.NullPointerException at org.omnifaces.cdi.eager.EagerBeansWebListener.requestInitialized
I am using TomEE Plus 1.7.2 Server and try to start a webapp with OmniFaces included, but I get a Nullpointer exception:
WARNUNG: Could not instantiate eager request scoped beans for request /index.xhtml. Possibly the CDI request scope is not…
Lemao1981
- 2,225
- 5
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1
vote
0 answers
Nested Eager Loading not work when upgrade to laravel 5.2
I created 3 models are Exams, Questions and Answers. I use nested eager loading to load all questions and answers of specific exams.
My function is:
public function allBy($examId)
{
return \Exam::with('questions.answers')->get();
}
It works in…
vutaviva
- 127
- 2
- 10
1
vote
2 answers
Eager loading despite Lazy Initialization?
we have an entity that has a lot of ManyToOne, OneToOne, etc relations which themself have again some relations.
For example
@OneToMany(targetEntity = Season.class, cascade = {
CascadeType.ALL
})
@JoinColumn(name = "SEASON_ID")
public…
Urr4
- 611
- 9
- 26
1
vote
1 answer
Laravel - hasManyThrough and eager loading, get column from related
I'm getting some weird stuff going on when trying to eager load a related model using hasManyThrough.
I have a Community model which has a function called 'roommates' to get all Users that have the community id in a column called 'community', see…
BrendanDodd
- 237
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- 10
1
vote
3 answers
Cakephp 3 dynamically build contain
How can I dynamically build the contain in the new cakephp 3 query builder. This is what I have now:
$query = $dbTable->find()
->select($contain['select']['fields'])
->contain(function($q) use($array,$contain){
…
chrisShick
- 1,096
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1
vote
0 answers
Lazy eager in parallel value, is it possible?
The title is right, I want everything.
In eager evaluation the functions are evaluated always as soon as the assignment is done.
In lazy evaluation this is not done until the value is needed, but then it is a blocking operation, just like in eager…
Trylks
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