Hi,
RecordList.sort(Comparator) throws exception in SmartGWT 2.4
package com.smartgwt.client.data;
public class RecordList extends BaseClass implements com.smartgwt.client.data.events.HasDataChangedHandlers {
...
/**
* Sorts the elements of the List in place. <P> The optional comparator function should take two parameters "a" and "b"
* which are the two list items to compare, and should return: <ul> <li> a value less than zero, if "a" is less than "b"
* such that "a" should appear earlier in the list <li> zero, if "a" and "b" are equal <li> a value greater than zero,
* if "a" is greater than "b" such that "b" should appear earlier in the list </ul>
* @param comparator comparator function to use
*
* @return the list itself
*/
public native RecordList sort(JavaScriptObject self, Comparator<Record> comparator) /*-{
return self.sort(function(record1, record2) {
var record1J = @com.smartgwt.client.data.Record::getOrCreateRef(Lcom/google/gwt/core/client/JavaScriptObject;)(record1);
var record2J = @com.smartgwt.client.data.Record::getOrCreateRef(Lcom/google/gwt/core/client/JavaScriptObject;)(record2);
return comparator.@java.util.Comparator::compare(Ljava/lang/Object;Ljava/lang/Object;)(record1J, record2J);
});
}-*/;
The method should return RecordList but it returns JavaScriptObject and throws ClassCastException. It can be fixed by the following way:
public native RecordList sort(Comparator<Record> comparator) /*-{
var self = this.@com.smartgwt.client.core.BaseClass::getOrCreateJsObj()();
var res = self.sort(function(record1, record2) {
var record1J = @com.smartgwt.client.data.Record::getOrCreateRef(Lcom/google/gwt/core/client/JavaScriptObject;)(record1);
var record2J = @com.smartgwt.client.data.Record::getOrCreateRef(Lcom/google/gwt/core/client/JavaScriptObject;)(record2);
return comparator.@java.util.Comparator::compare(Ljava/lang/Object;Ljava/lang/Object;)(record1J, record2J);
});
return @com.smartgwt.client.data.RecordList::getOrCreateRef(Lcom/google/gwt/core/client/JavaScriptObject;)(res);
}-*/;