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#174 Extend OrderSpecifier to support nullsFirst() and nullsLast()

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This commit is contained in:
Timo Westkämper 2013-03-11 19:35:20 +02:00
parent b00b2862a6
commit e116d3551e
1 changed files with 33 additions and 2 deletions
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35
querydsl-core/src/main/java/com/mysema/query/types/OrderSpecifier.java
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@ -28,13 +28,22 @@ public class OrderSpecifier<T extends Comparable> implements Serializable {
private static final long serialVersionUID = 3427652988262514678L;
public enum NullHandling { Default, NullsFirst, NullsLast }
private final Order order;
private final Expression<T> target;
private final NullHandling nullHandling;
public OrderSpecifier(Order order, Expression<T> target) {
public OrderSpecifier(Order order, Expression<T> target, NullHandling nullhandling) {
this.order = order;
this.target = target;
this.nullHandling = nullhandling;
}
public OrderSpecifier(Order order, Expression<T> target) {
this(order, target, NullHandling.Default);
}
/**
@ -64,6 +73,27 @@ public class OrderSpecifier<T extends Comparable> implements Serializable {
return target;
}
/**
* @return
*/
public NullHandling getNullHandling() {
return nullHandling;
}
/**
* @return
*/
public OrderSpecifier<T> nullsFirst() {
return new OrderSpecifier<T>(order, target, NullHandling.NullsFirst);
}
/**
* @return
*/
public OrderSpecifier<T> nullsLast() {
return new OrderSpecifier<T>(order, target, NullHandling.NullsLast);
}
@Override
public String toString() {
return target + " " + order;
@ -75,7 +105,8 @@ public class OrderSpecifier<T extends Comparable> implements Serializable {
return true;
} else if (o instanceof OrderSpecifier) {
OrderSpecifier<?> os = (OrderSpecifier)o;
return os.order.equals(order) && os.target.equals(target);
return os.order.equals(order) && os.target.equals(target)
&& os.nullHandling.equals(nullHandling);
} else {
return false;
}