Java Components类代码示例

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void selectable1() {
	// tag::selectable1[]
	SingleSelect<TestData> singleSelect = Components.input.singleSelect(TestData.class).caption("Single select")
			.build(); // <1>

	singleSelect.setValue(new TestData(1)); // <2>
	singleSelect.select(new TestData(1)); // <3>

	singleSelect.clear(); // <4>
	singleSelect.deselectAll(); // <5>

	boolean selected = singleSelect.isSelected(new TestData(1)); // <6>

	singleSelect.addSelectionListener(
			s -> s.getFirstSelectedItem().ifPresent(i -> Notification.show("Selected: " + i.getId()))); // <7>
	// end::selectable1[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void selectable2() {
	// tag::selectable2[]
	MultiSelect<TestData> multiSelect = Components.input.multiSelect(TestData.class).caption("Multi select")
			.build(); // <1>

	Set<TestData> values = new HashSet<>();
	values.add(new TestData(1));
	values.add(new TestData(2));

	multiSelect.setValue(values); // <2>
	multiSelect.select(new TestData(3)); // <3>

	multiSelect.deselect(new TestData(3)); // <4>

	multiSelect.clear(); // <5>
	multiSelect.deselectAll(); // <6>

	boolean selected = multiSelect.isSelected(new TestData(1)); // <7>

	multiSelect.addSelectionListener(s -> Notification.show(s.getAllSelectedItems().stream()
			.map(i -> String.valueOf(i.getId())).collect(Collectors.joining(";", "Selected: ", "")))); // <8>
	// end::selectable2[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void selectable9() {
	// tag::selectable9[]
	Datastore datastore = obtainDatastore();

	final PathProperty<Long> ID = PathProperty.create("id", Long.class);
	final PathProperty<String> DESCRIPTION = PathProperty.create("description", String.class);

	SingleSelect<Long> singleSelect = Components.input.singleSelect(ID) // <1>
			.dataSource(datastore, DataTarget.named("testData"), PropertySet.of(ID, DESCRIPTION)) // <2>
			.itemCaptionGenerator(propertyBox -> propertyBox.getValue(DESCRIPTION)) // <3>
			.build();

	singleSelect.setValue(Long.valueOf(1)); // <4>
	Long selectedId = singleSelect.getValue(); // <5>

	singleSelect.refresh(); // <6>
	// end::selectable9[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void listing4() {
	// tag::listing4[]
	PropertyListing listing = Components.listing.properties(PROPERTIES) //
			.header(ID, "Custom ID header") // <1>
			.columnHidingAllowed(true) // <2>
			.hidable(ID, false) // <3>
			.columnReorderingAllowed(true) // <4>
			.alignment(ID, ColumnAlignment.RIGHT) // <5>
			.hidden(DESCRIPTION, true) // <6>
			.resizable(ID, false) // <7>
			.width(ID, 100) // <8>
			.expandRatio(DESCRIPTION, 1) // <9>
			.minWidth(DESCRIPTION, 200) // <10>
			.maxWidth(DESCRIPTION, 300) // <11>
			.style(ID, (property, item) -> item.getValue(DESCRIPTION) != null ? "empty" : "not-empty") // <12>
			.withPropertyReorderListener((properties, userOriginated) -> { // <13>
				// ...
			}).withPropertyResizeListener((property, widthInPixel, userOriginated) -> { // <14>
				// ...
			}).withPropertyVisibilityListener((property, hidden, userOriginated) -> { // <15>
				// ...
			}).build();
	// end::listing4[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void listing7() {
	// tag::listing7[]
	PropertyListing listing = Components.listing.properties(PROPERTIES) //
			.selectionMode(SelectionMode.SINGLE) // <1>
			.build();

	final PropertyBox ITEM = PropertyBox.builder(PROPERTIES).set(ID, 1L).build();

	PropertyBox selected = listing.getFirstSelectedItem().orElse(null); // <2>

	boolean isSelected = listing.isSelected(ITEM); // <3>

	listing.select(ITEM); // <4>

	listing.deselectAll(); // <5>
	// end::listing7[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void listing10() {
	// tag::listing10[]
	Datastore datastore = getDatastore();

	PropertyListing listing = Components.listing.properties(PROPERTIES) //
			.dataSource(datastore, DataTarget.named("test"), ID) // <1>
			.commitHandler((addedItems, modifiedItems, removedItems) -> { // <2>
				// ...
			}).build();

	final PropertyBox ITEM = PropertyBox.builder(PROPERTIES).set(ID, 777L).set(DESCRIPTION, "A description")
			.build();

	listing.addItem(ITEM); // <3>

	listing.refreshItem(ITEM); // <4>

	listing.removeItem(ITEM); // <5>
	// end::listing10[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void listing11() {
	// tag::listing11[]
	Datastore datastore = getDatastore();

	PropertyListing listing = Components.listing.properties(PROPERTIES) //
			.dataSource(datastore, DataTarget.named("test"), ID) //
			.buffered(true) // <1>
			.build();

	final PropertyBox ITEM = PropertyBox.builder(PROPERTIES).set(ID, 777L).set(DESCRIPTION, "A description")
			.build();

	listing.addItem(ITEM); // <2>
	listing.refreshItem(ITEM); // <3>
	listing.removeItem(ITEM); // <4>

	listing.commit(); // <5>
	listing.discard(); // <6>
	// end::listing11[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void input5() {
	// tag::input5[]
	Input<String> stringInput = Components.input.string().build();
	ValidatableInput<String> validatableInput = ValidatableInput.from(stringInput); // <1>

	validatableInput.addValidator(Validator.email()); // <2>
	validatableInput.addValidator(Validator.max(100)); // <3>

	validatableInput.setValidationStatusHandler(e -> { // <4>
		if (e.isInvalid()) {
			Notification.show(e.getErrorMessage(), Type.ERROR_MESSAGE);
		}
	});

	validatableInput.validate(); // <5>

	validatableInput.setValidateOnValueChange(true); // <6>
	// end::input5[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void group1() {
	// tag::group1[]
	final PathProperty<Long> ID = PathProperty.create("id", Long.class);
	final PathProperty<String> DESCRIPTION = PathProperty.create("description", String.class);

	final PropertySet<?> PROPERTIES = PropertySet.of(ID, DESCRIPTION);

	PropertyInputGroup group = Components.input.propertyGroup().properties(PROPERTIES) // <1>
			.bind(ID, Components.input.number(Long.class).build()) // <2>
			.bind(DESCRIPTION, Components.input.string().maxLength(100).build()) // <3>
			.build();

	group.setValue(PropertyBox.builder(PROPERTIES).set(ID, 1L).set(DESCRIPTION, "TestDescription").build()); // <4>

	PropertyBox value = group.getValue(); // <5>

	group.addValueChangeListener(e -> { // <6>
		PropertyBox changedValue = e.getValue();
	});
	// end::group1[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void group6() {
	// tag::group6[]
	final PathProperty<Long> ID = PathProperty.create("id", Long.class);
	final PathProperty<String> DESCRIPTION = PathProperty.create("description", String.class);

	final PropertySet<?> PROPERTIES = PropertySet.of(ID, DESCRIPTION);

	PropertyInputGroup group = Components.input.propertyGroup().properties(PROPERTIES) //
			.stopValidationAtFirstFailure(true) // <1>
			.stopOverallValidationAtFirstFailure(true) // <2>
			.validationStatusHandler(validationEvent -> { // <3>
				// ...
			}).propertiesValidationStatusHandler(validationEvent -> { // <4>
				// ...
			}).build();
	// end::group6[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void form1() {
	// tag::form1[]
	final PathProperty<Long> ID = PathProperty.create("id", Long.class);
	final PathProperty<String> DESCRIPTION = PathProperty.create("description", String.class);

	final PropertySet<?> PROPERTIES = PropertySet.of(ID, DESCRIPTION);

	PropertyInputForm form = Components.input.form(new FormLayout()).properties(PROPERTIES).required(ID).build(); // <1>

	form = Components.input.form(new FormLayout()).properties(PROPERTIES).required(ID)
			.composer((layout, source) -> { // <2>
				source.getValueComponents().forEach(c -> layout.addComponent(c.getComponent()));
			}).build();

	form.setValue(PropertyBox.builder(PROPERTIES).set(ID, 1L).set(DESCRIPTION, "Test").build()); // <3>

	PropertyBox value = form.getValue(); // <4>
	// end::form1[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void view2() {
	// tag::view2[]
	final PathProperty<Long> ID = PathProperty.create("id", Long.class);
	final PathProperty<String> DESCRIPTION = PathProperty.create("description", String.class);

	final PropertySet<?> PROPERTIES = PropertySet.of(ID, DESCRIPTION);

	PropertyViewGroup viewGroup = Components.view.propertyGroup().properties(PROPERTIES).build(); // <1>

	PropertyViewForm viewForm = Components.view.formVertical().properties(PROPERTIES).build(); // <2>

	viewForm = Components.view.form(new FormLayout()).properties(PROPERTIES) //
			.composer((layout, source) -> { // <3>
				source.getValueComponents().forEach(c -> layout.addComponent(c.getComponent()));
			}).build();

	viewForm.setValue(PropertyBox.builder(PROPERTIES).set(ID, 1L).set(DESCRIPTION, "Test").build()); // <4>

	PropertyBox value = viewForm.getValue(); // <5>
	// end::view2[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
public void dialog1() {
	// tag::dialog1[]
	Dialog dialog = Components.dialog() // <1>
			.draggable(false) // <2>
			.closable(true) // <3>
			.resizable(true) // <4>
			.modal(true) // <5>
			.message("Dialog message", "dialog.message.code") // <6>
			.okButtonConfigurator(cfg -> cfg.caption("Done").icon(FontAwesome.CHECK_CIRCLE_O)) // <7>
			.withCloseListener((window, action) -> { // <8>
				// ...
			}).build();

	dialog.open(); // <9>

	dialog.close(); // <10>
	// end::dialog1[]
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
@Override
protected void buildActions(HorizontalLayout actionsContainer) {
	actionsContainer.setSpacing(true);
	// yes
	final Button btnYes = Components.button().styleName(ValoTheme.BUTTON_PRIMARY)
			.caption(Localizable.builder().message(DEFAULT_YES_BUTTON_MESSAGE)
					.messageCode(DEFAULT_YES_BUTTON_MESSAGE_CODE).build())
			.onClick(e -> onDialogYesButtonClick(e.getButton())).build();
	getYesButtonConfigurator().ifPresent(c -> c.configureDialogButton(Components.configure(btnYes)));
	actionsContainer.addComponent(btnYes);
	actionsContainer.setComponentAlignment(btnYes, Alignment.MIDDLE_LEFT);
	if (getWidth() > -1) {
		btnYes.setWidth("100%");
	}
	// no
	final Button btnNo = Components.button()
			.caption(Localizable.builder().message(DEFAULT_NO_BUTTON_MESSAGE)
					.messageCode(DEFAULT_NO_BUTTON_MESSAGE_CODE).build())
			.onClick(e -> onDialogNoButtonClick(e.getButton())).build();
	getNoButtonConfigurator().ifPresent(c -> c.configureDialogButton(Components.configure(btnNo)));
	actionsContainer.addComponent(btnNo);
	actionsContainer.setComponentAlignment(btnNo, Alignment.MIDDLE_RIGHT);
	if (getWidth() > -1) {
		btnNo.setWidth("100%");
	}
}
 

import com.holonplatform.vaadin.components.Components; //导入依赖的package包/类
@Test
public void testDatastoreItemConverter() {
	SingleSelect<String> slt = Components.input.singleSelect(CODE).dataSource(datastore, TARGET, PROPERTIES)
			.build();
	slt.select("c3");

	assertNotNull(slt.getValue());
	assertEquals("c3", slt.getValue());

	MultiSelect<String> mslt = Components.input.multiSelect(CODE).dataSource(datastore, TARGET, PROPERTIES).build();

	mslt.select("c3", "c5");

	assertNotNull(mslt.getValue());
	assertTrue(mslt.getValue().contains("c3"));
	assertTrue(mslt.getValue().contains("c5"));
}