[client] check maxValidity for lecture when creating them

1 files changed, 15 insertions, 6 deletions

diff --git a/dozentenmodul/src/main/java/org/openslx/dozmod/gui/helper/DateTimeHelper.java b/dozentenmodul/src/main/java/org/openslx/dozmod/gui/helper/DateTimeHelper.java
index 6c404f9b..3c6710de 100644
--- a/dozentenmodul/src/main/java/org/openslx/dozmod/gui/helper/DateTimeHelper.java
+++ b/dozentenmodul/src/main/java/org/openslx/dozmod/gui/helper/DateTimeHelper.java
@@ -8,6 +8,11 @@ import javax.swing.JSpinner;
 import org.jdatepicker.impl.JDatePickerImpl;
 
 public class DateTimeHelper {
+	private static Calendar calendar = null;
+	static {
+		if (calendar == null)
+			calendar = Calendar.getInstance();
+	}
 	/**
 	 * Returns the Date composed of the given datePicker's date and the given timeSpinner's time
 	 * 
@@ -22,13 +27,17 @@ public class DateTimeHelper {
 		int days = datePicker.getModel().getDay();
 		// start time from the Spinner
 		Date time = (Date) timeSpinner.getValue();
-		Calendar cal = Calendar.getInstance();
-		cal.setTime(time);
-		int hours = cal.get(Calendar.HOUR_OF_DAY);
-		int minutes = cal.get(Calendar.MINUTE);
+		calendar.setTime(time);
+		int hours = calendar.get(Calendar.HOUR_OF_DAY);
+		int minutes = calendar.get(Calendar.MINUTE);
 		// build the time from the single values
-		cal.set(years, months, days, hours, minutes);
-		Date date = cal.getTime();
+		calendar.set(years, months, days, hours, minutes);
+		Date date = calendar.getTime();
 		return date;
 	}
+	public static Date addDaysTo(Date start, int days) {
+		calendar.setTime(start);
+		calendar.add(Calendar.DAY_OF_MONTH, days);
+		return calendar.getTime();
+	}
 }