com.vaadin.ui.renderers.
Class TextRenderer
- java.lang.Object
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- com.vaadin.server.AbstractClientConnector
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- com.vaadin.server.AbstractExtension
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- com.vaadin.ui.renderers.AbstractRenderer<Object,Object>
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- com.vaadin.ui.renderers.TextRenderer
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All Implemented Interfaces:
MethodEventSource
,ClientConnector
,Extension
,Connector
,Renderer<Object>
,Serializable
public class TextRenderer extends AbstractRenderer<Object,Object>
A renderer for presenting a plain text representation of any value.
Object.toString()
is used for determining the text to show.Since:
7.4
Author:
Vaadin Ltd
See Also:
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Nested Class Summary
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Nested classes/interfaces inherited from interface com.vaadin.server.ClientConnector
ClientConnector.AttachEvent, ClientConnector.AttachListener, ClientConnector.ConnectorErrorEvent, ClientConnector.DetachEvent, ClientConnector.DetachListener
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Constructor Summary
Constructors Constructor Description TextRenderer()
Creates a new text renderer that uses
""
to represent null values.TextRenderer(String nullRepresentation)
Creates a new text renderer with the given string to represent null values.
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Method Summary
All Methods Modifier and Type Method Description elemental.json.JsonValue
encode(Object value)
Encodes the given value into a
JsonValue
.String
getNullRepresentation()
Null representation for the renderer.
protected TextRendererState
getState()
Returns the shared state for this connector.
protected TextRendererState
getState(boolean markAsDirty)
Returns the shared state for this connector.
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Methods inherited from class com.vaadin.ui.renderers.AbstractRenderer
encode, extend, getParent, getParentGrid, getPresentationType, getSupportedParentType
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Methods inherited from class com.vaadin.server.AbstractExtension
remove, setParent
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Methods inherited from class com.vaadin.server.AbstractClientConnector
addAttachListener, addDetachListener, addExtension, addListener, addListener, addListener, addListener, addListener, addListener, addMethodInvocationToQueue, attach, beforeClientResponse, createState, detach, encodeState, equals, fireEvent, getAllChildrenIterable, getConnectorId, getErrorHandler, getExtensions, getListeners, getResource, getRpcManager, getRpcProxy, getSession, getStateType, getUI, handleConnectorRequest, hashCode, hasListeners, isAttached, isConnectorEnabled, isThis, markAsDirty, markAsDirtyRecursive, registerRpc, registerRpc, removeAttachListener, removeDetachListener, removeExtension, removeListener, removeListener, removeListener, removeListener, removeListener, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler, setResource, updateDiffstate
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.vaadin.server.ClientConnector
addAttachListener, addDetachListener, attach, beforeClientResponse, detach, encodeState, getErrorHandler, getExtensions, getRpcManager, getStateType, getUI, handleConnectorRequest, isAttached, isConnectorEnabled, markAsDirty, markAsDirtyRecursive, removeAttachListener, removeDetachListener, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setErrorHandler
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Methods inherited from interface com.vaadin.shared.Connector
getConnectorId
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Constructor Detail
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TextRenderer
public TextRenderer()
Creates a new text renderer that uses
""
to represent null values.
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TextRenderer
public TextRenderer(String nullRepresentation)
Creates a new text renderer with the given string to represent null values.
Parameters:
nullRepresentation
- the textual representation ofnull
value
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Method Detail
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encode
public elemental.json.JsonValue encode(Object value)
Description copied from interface:
Renderer
Encodes the given value into a
JsonValue
.
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getNullRepresentation
public String getNullRepresentation()
Description copied from class:
AbstractRenderer
Null representation for the renderer.
Overrides:
getNullRepresentation
in classAbstractRenderer<Object,Object>
Returns:
a textual representation of
null
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getState
protected TextRendererState getState()
Description copied from class:
AbstractClientConnector
Returns the shared state for this connector. The shared state object is shared between the server connector and the client connector. Changes are only communicated from the server to the client and not in the other direction.
As a side effect, marks the connector dirty so any changes done to the state will be sent to the client. Use
getState(false)
to avoid marking the connector as dirty.Overrides:
getState
in classAbstractRenderer<Object,Object>
Returns:
The shared state for this connector. Never null.
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getState
protected TextRendererState getState(boolean markAsDirty)
Description copied from class:
AbstractClientConnector
Returns the shared state for this connector.
Overrides:
getState
in classAbstractRenderer<Object,Object>
Parameters:
markAsDirty
- true if the connector should automatically be marked dirty, false otherwiseReturns:
The shared state for this connector. Never null.
See Also:
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