Calendar with java.sql.Date

[rcasha]

I am trying to use the calendar component bound to properties of type java.sql.Date and java.sql.Timestamp. I have created the necessary converters from String to these datatypes, and specified the converters to the calendar component, but with these bindings, the calendar never sets the value. It gets the existing value, and displays it but ignores the pattern.

Is it, or should it be, possible, to use the calendar component with java.sql.Date and other types that inherit from java.util.Date?

[ydarcin]

Hi,

maybe you can use a converter where you take the selected value from calendar and convert it to any type you want.

Yigit

[rcasha]

I thought that converters only convert from String to the target object and vice versa. Can I have a converter that takes the calendar's java.util.Date and convert it to java.sql.Date before it is set in the property?

[robert.m]

Is there a specific reason why you need to use java.sql.Date?

Anyways, as you already mentioned, java.sql.Date inherits from java.util.Date which makes it possible to cast a java.sql.Date to a java.util.Date:

Code: Select all

java.util.Date date1 = new Date();
java.sql.Date date2 = (java.util.Date)date1;

Accordingly, you could store your Date using java.sql.Date in your Bean and add another get-Method which returns a java.util.Date using a cast of the Bean's attribute and a setter method which converts the java.util.Date parameter to the java.sql.Date.

Code: Select all

class DateBean {

	java.sql.Date date;

	java.util.Date getCalendarDate() {
		return (java.util.Date)this.date;
	}

	void setCalendarDate(java.util.Date date) {
		this.date = new java.sql.Date(date.getTime());
	}

	java.sql.Date getDate() {
		return this.date;
	}

	void setDate(java.sql.Date date) {
		this.date = date;
	}
}

for your calendar you can use the dateBean.calendarDate-Property

[rcasha]

Yes the property is a jpa entity, they use java.sql types. I'll try this, thanks.

[hnoor0033]

Can I have a converter that takes the calendar's java.util.Date and convert it to java.sql.Date before it is set in the property?

[kukeltje]

Don't do it there. Do it in your persistence layer. Bad design to have java.sql.Date in your model...