Eclipse Scout 7.0 is part of the Eclipse Oxygen release. It was released in June 2017 (release schedule). The latest version of this release is 7.0.0.008_Oxygen.
| If you are upgrading from version 6.0, please also read the release notes for the 6.1 (Oxygen preview) release:
You can see the detailed change log on GitHub.
The following changes were made after the initial 7.0 release (Eclipse Oxygen release). The following notes relate to a service release.
Attention: The here described functionality has not yet been released and is part of an upcoming release.
Minor changes for HTTP abstraction properties.
Existing configuration property classes have been bundled in two
The configuration property
org.eclipse.scout.rt.servicetunnel.apache_connection_time_to_livehas been removed (
scout.http.apache_connection_time_to_liveis used instead).
New configuration properties have been added:
scout.http.apache_keep_alive(possible values: true/false), whether to use keep-alive connections. If property is not set the system property
http.keepAliveis evaluated, if this system property is also not set true will be used as a last resort.
scout.http.apache_retry_post(possible values: true/false), whether to retry HTTP POST requests. If not property is not set the system property
sun.net.http.retryPostis evaluated, if this system property is also not set true will be used as a last resort.
Scout RT artifacts are distributed via Maven:
Usage example in the parent POM of your Scout application:
<dependency> <groupId>org.eclipse.scout.rt</groupId> <artifactId>org.eclipse.scout.rt</artifactId> <version>7.0.0.008_Oxygen</version> <type>pom</type> <scope>import</scope> </dependency>
You can download the complete Eclipse IDE with Scout SDK included (EPP) here:
Eclipse for Scout Developers
To install the Scout SDK into your existing Eclipse IDE, use this update site:
The demo applications for this version can be found on the features/version/7.0.0.008_Oxygen branch of our docs repository on GitHub.
If you just want to play around with them without looking at the source code, you can always use the deployed versions:
We upgraded from jQuery 2.1.4 to jQuery 3.2.1. The new version contains a lot of improvements, including performance optimizations for animations and event handling. It also allowed us to remove some code which is now included in jQuery directly (e.g. addClassSVG, removeClassSVG, hasClassSVG).
Beside upgrading jQuery, we upgraded the Jasmine Maven Plugin to version 2.2 and the PhantomJS Maven Plugin to version 2.1.1, too. The YUI compressor has also been upgraded from 2.4.8 to version 2.4.9, but unfortunately it is not compatible with jQuery 3. To make it work again we had to fork it and now use the version 2.4.9-BSI-1.
Along with the jQuery upgrade we decided to remove jQuery UI and jQuery Mobile completely. Scout only included parts of these libraries and the usage was limited to 2 or 3 functions. Without these dependencies it will be easier in the future to upgrade jQuery itself.
ValueField.js now provides an API to add custom parse, validate and format logic. This is especially useful for the
StringField, but you may also use it for the
NumberField and the
DateField. See the technical guide for details.
$parent is now optional when calling widget.render(). The
$parent may be resolved using
this.parent. No need to always write
widget.render(this.$container) anymore, instead just write
widget.render() if the
$container of the
parent should be used as
The property change event has been simplified. Instead of
changedProperties, the event now contains
newValue. This makes handling the event easier.
NumberField now use the value based API provided by
ValueField. This means you can write the value using
field.setValue(value), and read it using
field.value. The validators and formatter will be called accordingly.
When writing a Scout Form with Java, you don’t have to care about the logical grid. You only have to specify some grid hints like width and height of a cell. The positioning of the cell is calculated automatically by the logical grid.
This is now also possible with JS based Scout applications. There is no need to manually create a Logical Grid (e.g.
HorizontalGroupBoxBodyGrid and validate it anymore, this will be done automatically by the
org.eclipse.scout.rt.shared.servicetunnel.http.HttpServiceTunnel class and other HTTP usages were changed to use the Google HTTP Client Library for Java 1.22. This library adds a HTTP abstraction layer and allows to use different low-level libraries like
java.net.HttpURLConnection (one and only layer used in previous versions) or Apache HTTP Client 4.5.3 (new default).
Different HTTP clients with different parameters (even with different low-level libraries) may be used and kept using (custom) implementations of
org.eclipse.scout.rt.shared.http.IHttpTransportManager. Currently there are two internal implementations of this interface:
HttpServiceTunnelTransportManager (only used by the service tunnel) and
DefaultHttpTransportManager (used for all other HTTP connections).
The following new configuration properties (none of them is required to be set, defaults are provided for all of them) were added:
scout.http.transport_factory, possible values are
org.eclipse.scout.rt.shared.http.ApacheHttpTransportFactory(default, see above),
org.eclipse.scout.rt.shared.http.NetHttpTransportFactory(to use previous HttpURLConnection layer) or any custom implementation of an
org.eclipse.scout.rt.servicetunnel.apache_max_connections_per_route, maximum number of connections per route (default: 2048, only applicable for for Apache HTTP Client).
org.eclipse.scout.rt.servicetunnel.apache_max_connections_total, maximum number of connections in total (default: 2048, only applicable for for Apache HTTP Client).
For the all other
org.eclipse.scout.rt.shared.http.AbstractHttpTransportManager (if not overriding these settings):
scout.http.apache_connection_time_to_live, time to live (milliseconds) for kept alive connections (default: 1 hour, only applicable for Apache HTTP Client).
scout.http.apache_max_connections_per_route, maximum number of connections per route (default: 32, only applicable for Apache HTTP Client).
scout.http.apache_max_connections_total, maximum number of connections in total (default: 128, only applicable for Apache HTTP Client).
For each Apache HTTP Client created using the
org.eclipse.scout.rt.shared.http.ApacheHttpTransportFactory (by default each
org.eclipse.scout.rt.shared.http.IHttpTransportManager using the Apache HTTP Client) their own
org.eclipse.scout.rt.shared.http.proxy.ConfigurableProxySelector (see javadoc for detailed description and configurability) are created. These instances are therefore not registered globally for the java virtual machine anymore.
The following new Scout modules have been added to support REST services with Jackson as marshaller:
The most important class is the
org.eclipse.scout.rt.rest.RestApplication which searches for all implementations of
IRestResource and exposes them as REST services. It also registers
ExceptionMappers and setups Jackson to work with Jandex.
So if you want to use REST services, you could use the Jersey REST servlet (
org.glassfish.jersey.servlet.ServletContainer), pass the
RestApplication as parameter and install the
org.eclipse.scout.rt.server.context.ServerRunContextFilter to have the proper run context for every REST call. Creating the REST resource is straight forward using the annotations from
javax.ws.rs. Just make sure the resource implements the interface
IRestResource so that it will be registered by the
RestApplication on startup.
If a button or a menu is clicked twice within a short period of time, the corresponding action is executed twice. This can be convenient (e.g. when inserting new rows in a table) or unproblematic (e.g. when closing a form - the second click will just be ignored). However, there are cases where executing an action twice would break things. To instruct the UI to block double clicks, a new property "preventDoubleClick" is provided on buttons and menus:
The default value is
The SplitBox widget now supports a minimum splitter position according to the collapsible field. The collapsible field size is limited between minimum splitter position and maximum available size. The collapse buttons now toggles between three modes of the collapsible field:
collapsed. The default value for minimal splitter size is
null, which means, no minimal splitter size is set and no change in existing behavior.
New API methods on
void setMinSplitterPosition(Double minPosition)
void setFieldMinimized(boolean minimized)
Additional to the existing three splitbox position types a new
SPLITTER_POSITION_TYPE_RELATIVE_SECOND type was added. This new splitter position type allows to specify the size of the second field relative to the full size of the splitbox.
This release introduces a new smart field:
ISmartField2. It has almost the same interface as the old smart field
ISmartField, which still exists in this Scout release, but will be removed with 7.1. The main differences to the old smart field:
In "Scout classic" (with a Java UI server) there is no longer a model representation of the proposal chooser. In the new smart field the whole state of the proposal chooser is kept on client side in the browser. The Java UI server only sends lookup rows to the client. Depending on the smart field configuration
ISmartField2 should be simple in most cases, since the interfaces of the old and the new smart field are almost identical. Differences are:
There is no longer a
IMixedSmartFieldwith two generic types for VALUE and LOOKUP_TYPE, since these two types are identical in 99.9% of all cases. When you migrate an old Scout application that uses different types you could either provide a new LookupCall that has the same lookup type as the smart field value, or you could simply cast the value of the smart field where needed.
The value of the proposal field is now always a String. The generic type you pass to the proposal field is the lookup type. Use the methods
getValueAsStringto read and write the value of the proposal field. Additionally you can still access the selected lookup row of the proposal field and get the key of the lookup row.
Note: With 7.1 the old smart field will be deleted and replaced by the new smart field
ISmartField2, additionally in 7.1
ISmartField2 will be renamed to
ISmartField again. When you start a new Scout project with this release you should use
The date picker has been there for a long time and provides a convenient way to pick a date. To enter a time however, you had to use the keyboard. These days are now gone because with this service release a time picker has been added. It shows the hours from 0 to 23 and the commonly used minutes. The resolution is configurable, so you could change to 00, 15, 30, 45 instead of 00, 30 if you want. You can still use your keyboard, though.
Every input field now has a clear icon. It is active while the field has the focus. This makes it easy to clear the input with one click.
When using the smart field or date field on a mobile phone or tablet, the popup will be shown in a different way to make it easier to pick a value with the finger. This existing behavior has been improved so that it is now easier and more intuitive to clear the value and close the popup.
The column header menu shows a list of all the different values which occur in the cells of that column. If one of these values is selected the table will be filtered and will only show rows which contain that value. These values are sorted alphabetically. Because sometimes it might be useful to only display the rows which contain the most used values, a possibility was added to sort the values by the number of occurrences. Just press the icon on the left of the 'All' button.
The column has a property called
autoOptimizeWidth. This property has been there for a while but has not been interpreted yet. With 7.0.100 the support for this property has been implemented. If you set it to true on a specific column, the column will always be as width as its content. If not set, the user can still optimize the width manually by double clicking the separator between two columns.
|Do you want to improve this document? Have a look at the sources on GitHub.|