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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...y
@Entity
public class Company {
private int companyId;
private String companyName;
private List<Branch> branches;
@Id
@GeneratedValue
@Column(name="COMPANY_ID")
public int getCompanyId() {
return companyId;
}
public void setCompanyId(int compan...
How to lazy load images in ListView in Android
...a.io.IOException;
public class DrawableManager {
private final Map<String, Drawable> drawableMap;
public DrawableManager() {
drawableMap = new HashMap<String, Drawable>();
}
public Drawable fetchDrawable(String urlString) {
if (drawableMap.containsKey(u...
Create JSON object dynamically via JavaScript (Without concate strings)
...yees[0].manager = manager;
console.log(sitePersonel);
console.log(JSON.stringify(sitePersonel));
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Iterating Through a Dictionary in Swift
...
let dict : [String : Any] = ["FirstName" : "Maninder" , "LastName" : "Singh" , "Address" : "Chandigarh"]
dict.forEach { print($0) }
Result would be
("FirstName", "Maninder")
("LastName", "Singh")
("Address", "Chandigarh")
...
How can I “pretty print” a Duration in Java?
...ix("m")
.appendSeconds()
.appendSuffix("s")
.toFormatter();
String formatted = formatter.print(duration.toPeriod());
System.out.println(formatted);
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Deep cloning objects
... Your example illustrates the problem. Suppose you have a Dictionary<string, Customer>. Should the cloned Dictionary have the same Customer objects as the original, or copies of those Customer objects? There are reasonable use cases for either one. But ICloneable doesn't make clear which...
Rails migrations: self.up and self.down versus change
...d only delete this column on down
def up
add_column :users, :location, :string
User.update_all(location: 'Minsk')
end
def down
remove_column :users, :location
end
But:
You had to avoid using change method which allows to save some time. For example, if you didn’t need to update column v...
How to compare versions in Ruby?
How to write a piece of code to compare some versions strings and get the newest?
8 Answers
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Spring Boot: Unable to start EmbeddedWebApplicationContext due to missing EmbeddedServletContainerFa
...ringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(ScheduledTasks.class, args);
}
}
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Find provisioning profile in Xcode 5
...following criteria to locate the profile:
<key>Name</key>
<string>iOS Team Provisioning Profile: *</string>
you can scan the directory using awk. This one-liner will find the first file that contains the name starting with "iOS Team".
awk 'BEGIN{e=1;pat="<string>"to...