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    <p>If you want to check the value of a variable at run time, you can use reflection to check the instantiated objects fields like this:</p> <pre><code>package sandbox; import java.lang.reflect.Field; import java.lang.reflect.Modifier; public class ReflectionClassChecker { public static boolean checkAllPublic(Object someObject){ System.out.println("Checking someObject " + someObject.toString()); boolean hasNulls = false; Class&lt;?&gt; c = someObject.getClass(); Field[] fields = c.getFields(); for(Field field: fields){ System.out.println("Checking field " + field.getName() + "."); if(isFieldPublic(field)){ System.out.println("Field " + field.getName() + " is public, checking it for null."); Object value = getField(field, someObject) ; if(value == null){ System.out.println("Field " + field.getName() + " is null."); hasNulls = true; } else { System.out.println("Field " + field + " has value " + value ); } } } return hasNulls; } private static boolean isFieldPublic(Field field){ int modifiers = field.getModifiers(); boolean isPublic = Modifier.isPublic(modifiers); return isPublic; } private static Object getField(Field field, Object someObject){ Object value = null; try{ value = field.get(someObject); } catch (IllegalAccessException ignore){ System.out.println(ignore); } return value; } } </code></pre> <p>You can easily go from this implementation to one which uses getter/setter method invocations to check the value of inaccessible fields. If you want something less generic, or you want something which only checks specific fields, you can use c.getField(String) to get just that field, and then call field.get(object) for just that field.</p>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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