...
| Code Block |
|---|
import com.cognifide.app.util.Currency;
import com.cognifide.slice.api.provider.ModelProvider;
import com.cognifide.slice.mapper.annotation.JcrProperty;
import com.cognifide.slice.mapper.annotation.SliceResource;
import com.google.inject.Inject;
@SliceResource
public class OrderModel {
private final static String CONFIGURATION_PATH = "/content/app/configuration/jcr:content/currency";
private final ModelProvider modelProvider;
@JcrProperty
private int value;
@Inject
public OrderModel(ModelProvider modelProvider) {
this.modelProvider = modelProvider;
}
public int getValue() {
Currency currency = modelProvider.get(Currency.class, CONFIGURATION_PATH);
return formatToCurrency(value, currency);
}
...
} |
ChildrenProvider
The com.cognifide.slice.api.provider.ChildrenProvider interface allows you to get a list of child resources (paths) from under specified path.
Below table describes methods of the interface.
| Method | Description |
|---|---|
List<String> getChildren(final String path); | Returns paths to child resources of a resource from under specified path. If a resource under specified path doesn't exist, empty list is returned. The method is not recursive - it reads only direct children. |
List<Resource> getChildResources(final String path); | Returns child resources of a resource from under specified path. If a resource under specified path doesn't exist, empty list is returned. The method is not recursive - it reads only direct children |
Link, LinkBuilder
Thanks to com.cognifide.slice.api.link.Link and com.cognifide.slice.api.link.LinkBuilder interfaces you can easily manipulate on Sling links, e.g. setting selectors, extension, query string, path, etc.
They should be used whenever there is a need to modify an existing link (e.g. adding or removing some selectors) or create a new one and then manipulate it.
New link can only be created using LinkBuilder.
ChildrenProvider
Link, LinkBuilder
...
LinkBuilder can be obtained from LinkBuilderFactory which is injectable. An example usage of it is shown in the listings below:
| Code Block |
|---|
import com.cognifide.slice.api.link.Link;
import com.cognifide.slice.api.link.LinkBuilder;
import com.cognifide.slice.api.link.LinkBuilderFactory;
import com.cognifide.slice.api.qualifier.CurrentResourcePath;
import com.google.inject.Inject;
public class EventModel {
private final LinkBuilderFactory linkBuilderFactory;
private final String currentPath;
@Inject
public EventModel(LinkBuilderFactory linkBuilderFactory, @CurrentResourcePath String currentPath) {
this.linkBuilderFactory = linkBuilderFactory;
this.currentPath = currentPath;
}
public Link getPrintLink() {
LinkBuilder linkBuilder = linkBuilderFactory.getLinkBuilder();
linkBuilder.setPath(currentPath);
linkBuilder.setSelectorString("print");
linkBuilder.setExtension("pdf");
return linkBuilder.toLink();
}
...
} |
| Code Block |
|---|
import com.cognifide.slice.api.link.Link;
import com.cognifide.slice.api.link.LinkBuilder;
import com.cognifide.slice.api.link.LinkBuilderFactory;
import com.cognifide.slice.cq.qualifier.RequestedLink;
import com.google.inject.Inject;
public class EventModel {
private final LinkBuilderFactory linkBuilderFactory;
private final Link requestedLink;
@Inject
public EventModel(LinkBuilderFactory linkBuilderFactory, @RequestedLink Link requestedLink) {
this.linkBuilderFactory = linkBuilderFactory;
this.requestedLink = requestedLink;
}
public String getPrintLink() {
LinkBuilder linkBuilder = linkBuilderFactory.getLinkBuilder(requestedLink);
linkBuilder.addSelector("print").setExtension("pdf"); // it will retain query string and suffix
return linkBuilder.toString();
}
...
} |
| Info | ||
|---|---|---|
| ||
There is no need to create |
ClassToKeyMapper
The com.cognifide.slice.api.provider.ClassToKeyMapper interface allows you to obtain a com.google.inject.Key associated with a class specified by a String value. Thanks to this you can inject objects of classes specified by Strings rather than classes. In general, this interface is not widely used.