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com.vaadin.client.connectors.
Class AbstractMultiSelectConnector
- java.lang.Object
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- com.vaadin.client.ui.AbstractConnector
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- com.vaadin.client.ui.AbstractComponentConnector
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- com.vaadin.client.ui.AbstractFieldConnector
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- com.vaadin.client.connectors.AbstractListingConnector
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- com.vaadin.client.connectors.AbstractMultiSelectConnector
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All Implemented Interfaces:
com.google.gwt.event.shared.EventHandler,StateChangeEvent.StateChangeHandler,ComponentConnector,HasDataSource,HasWidget,ServerConnector,HasErrorIndicator,HasRequiredIndicator,Connector,SerializableDirect Known Subclasses:
public abstract class AbstractMultiSelectConnector extends AbstractListingConnectorA base connector class for multiselects.
Does not care about the framework provided selection model for now, instead just passes selection information per item.
Since:
8.0
Author:
Vaadin Ltd.
See Also:
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interfaceAbstractMultiSelectConnector.MultiSelectWidgetAbstraction layer to help populate different multiselect widgets based on same JSON data.
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Field Summary
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Fields inherited from class com.vaadin.client.ui.AbstractComponentConnector
SIGNIFICANT_MOVE_THRESHOLD
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Constructor Summary
Constructors Constructor Description AbstractMultiSelectConnector()
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Method Summary
All Methods Modifier and Type Method Description abstract AbstractMultiSelectConnector.MultiSelectWidgetgetMultiSelectWidget()Returns the multiselect widget for this connector.
AbstractMultiSelectStategetState()Returns the shared state object for this connector.
protected voidinit()Called when the connector has been initialized.
booleanisRequiredIndicatorVisible()Checks if a required indicator should be shown for the given connector.
protected voidonDataChange(Range range)This method handles the parsing of the new JSON data containing the items and the selection information.
voidsetDataSource(DataSource<elemental.json.JsonObject> dataSource)Sets the data source for this Connector.
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Methods inherited from class com.vaadin.client.connectors.AbstractListingConnector
getDataSource, getRowData, getRowKey, isRowSelected
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Methods inherited from class com.vaadin.client.ui.AbstractFieldConnector
isReadOnly, updateWidgetStyleNames
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Methods inherited from class com.vaadin.client.ui.AbstractComponentConnector
createWidget, delegateCaptionHandling, flush, getIcon, getIconUri, getLayoutManager, getTooltipInfo, getWidget, hasTooltip, isErrorIndicatorVisible, isRealUpdate, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, onDragSourceAttached, onDragSourceDetached, onDropTargetAttached, onDropTargetDetached, onStateChanged, onUnregister, registerTouchHandlers, sendContextClickEvent, setWidgetEnabled, setWidgetStyleName, setWidgetStyleNameWithPrefix, shouldHandleLongTap, unregisterTouchHandlers, updateComponentSize, updateComponentSize, updateEnabledState, updateWidgetSize
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Methods inherited from class com.vaadin.client.ui.AbstractConnector
addStateChangeHandler, addStateChangeHandler, createState, doInit, ensureHandlerManager, fireEvent, forceStateChange, getChildren, getConnection, getConnectorId, getParent, getResourceUrl, getRpcImplementations, getRpcProxy, getStateType, getTag, hasEventListener, isEnabled, registerRpc, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, unregisterRpc
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.client.ComponentConnector
delegateCaptionHandling, flush, getLayoutManager, getTooltipInfo, hasTooltip, isRelativeHeight, isRelativeWidth, isUndefinedHeight, isUndefinedWidth, setWidgetEnabled
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Methods inherited from interface com.vaadin.shared.Connector
getConnectorId
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Methods inherited from interface com.vaadin.client.ServerConnector
addStateChangeHandler, addStateChangeHandler, doInit, fireEvent, getChildren, getConnection, getParent, getRpcImplementations, getTag, hasEventListener, isEnabled, onUnregister, removeStateChangeHandler, removeStateChangeHandler, setChildren, setParent, setTag, updateEnabledState
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Method Detail
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getMultiSelectWidget
public abstract AbstractMultiSelectConnector.MultiSelectWidget getMultiSelectWidget()Returns the multiselect widget for this connector.
This is used because
AbstractComponentConnector.getWidget()returns a class (Widget) instead of an interface (IsWidget), and most multiselects extendsComposite.Returns:
the multiselect widget
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init
protected void init()Description copied from class:
AbstractConnectorCalled when the connector has been initialized. Override this method to perform initialization of the connector.
Overrides:
initin classAbstractConnector
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getState
public AbstractMultiSelectState getState()Description copied from class:
AbstractConnectorReturns the shared state object for this connector. Override this method to define the shared state type for your connector.
Specified by:
getStatein interfaceComponentConnectorSpecified by:
getStatein interfaceServerConnectorOverrides:
getStatein classAbstractListingConnectorReturns:
the current shared state (never null)
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setDataSource
public void setDataSource(DataSource<elemental.json.JsonObject> dataSource)Description copied from interface:
HasDataSourceSets the data source for this Connector.
Specified by:
setDataSourcein interfaceHasDataSourceOverrides:
setDataSourcein classAbstractListingConnectorParameters:
dataSource- the new data source, not null
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onDataChange
protected void onDataChange(Range range)This method handles the parsing of the new JSON data containing the items and the selection information.
Parameters:
range- the updated range, nevernull
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isRequiredIndicatorVisible
public boolean isRequiredIndicatorVisible()Description copied from interface:
HasRequiredIndicatorChecks if a required indicator should be shown for the given connector.
Specified by:
isRequiredIndicatorVisiblein interfaceHasRequiredIndicatorOverrides:
isRequiredIndicatorVisiblein classAbstractFieldConnectorReturns:
trueto show an indicator,falseotherwise
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