com.vaadin.flow.dom.impl.

java.lang.Object
- com.vaadin.flow.dom.impl.AbstractTextElementStateProvider

All Implemented Interfaces:

ElementStateProvider, Serializable

Direct Known Subclasses:

BasicTextElementStateProvider
```
public abstract class AbstractTextElementStateProvider
extends Object
implements ElementStateProvider
```
Abstract element state provider for text nodes. Operations that are not applicable for text nodes throw UnsupportedOperationException.
For internal use only. May be renamed or removed in a future release.

Since:

1.0

Author:

Vaadin Ltd

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AbstractTextElementStateProvider()

Method Summary

All Methods
Modifier and Type	Method	Description
`DomListenerRegistration`	`addEventListener(StateNode node, String eventType, DomEventListener listener)`	Adds a DOM event listener.
`Registration`	`addPropertyChangeListener(StateNode node, String name, PropertyChangeListener listener)`	Adds a property change listener.
`void`	`appendVirtualChild(StateNode node, Element child, String type, String payload)`	Append the given element as a virtual child.
`void`	`attachExistingElement(StateNode node, String tagName, Element previousSibling, ChildElementConsumer callback)`	Attaches a child element with the given `tagName` which is the next sibling for the `previousSibling`.
`StateNode`	`attachShadow(StateNode node)`	Attaches the shadow root for the `node`.
`String`	`getAttribute(StateNode node, String attribute)`	Gets the value of the given attribute.
`Stream<String>`	`getAttributeNames(StateNode node)`	Gets the defined attribute names.
`Element`	`getChild(StateNode node, int index)`	Returns the child element at the given position.
`int`	`getChildCount(StateNode node)`	Gets the number of child elements.
`ClassList`	`getClassList(StateNode node)`	Gets a list representation of all CSS class names set for an element.
`Serializable`	`getProperty(StateNode node, String name)`	Gets the value of the given property.
`Stream<String>`	`getPropertyNames(StateNode node)`	Gets the defined property names.
`StateNode`	`getShadowRoot(StateNode node)`	Gets shadow root for the `node` if it has been attached.
`Style`	`getStyle(StateNode node)`	Returns a style instance for managing element inline styles.
`String`	`getTag(StateNode node)`	Gets the tag name for the given node.
`boolean`	`hasAttribute(StateNode node, String attribute)`	Checks if the given attribute has been set.
`boolean`	`hasProperty(StateNode node, String name)`	Checks if the given property has been set.
`void`	`insertChild(StateNode node, int index, Element child)`	Inserts the given child at the given position.
`boolean`	`isTextNode(StateNode node)`	Checks if the state node represents a text node.
`boolean`	`isVisible(StateNode node)`	Gets the `node` visibility.
`void`	`removeAllChildren(StateNode node)`	Removes all child elements.
`void`	`removeAttribute(StateNode node, String attribute)`	Removes the given attribute if it has been set.
`void`	`removeChild(StateNode node, int index)`	Removes the child at the given position.
`void`	`removeChild(StateNode node, Element child)`	Removes the given child.
`void`	`removeProperty(StateNode node, String name)`	Removes the given property if it has been set.
`void`	`setAttribute(StateNode node, String attribute, AbstractStreamResource resource)`	Sets the given attribute to the given `StreamResource` value.
`void`	`setAttribute(StateNode node, String attribute, String value)`	Sets the given attribute to the given value.
`void`	`setProperty(StateNode node, String name, Serializable value, boolean emitChange)`	Sets the given property to the given value.
`void`	`setVisible(StateNode node, boolean visible)`	Sets the `node` visibility.
`void`	`visit(StateNode node, NodeVisitor visitor)`	Visit the `node` applying `visitor` to it and its descendants based on the return value from the visitor.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.dom.ElementStateProvider
getComponent, getParent, getTextContent, setComponent, setTextContent, supports

- Constructor Detail
  - AbstractTextElementStateProvider
```
public AbstractTextElementStateProvider()
```
- Method Detail
  - isTextNode
```
public boolean isTextNode(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Checks if the state node represents a text node.
    
    Specified by:
    
    isTextNode in interface ElementStateProvider
    
    Parameters:
    
    node - the node to check
    
    Returns:
    
    true if the state node represents a text node; otherwise false
  - getTag
```
public String getTag(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets the tag name for the given node.
    
    Specified by:
    
    getTag in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the tag name
  - setAttribute
```
public void setAttribute(StateNode node,
                         String attribute,
                         String value)
```
    Description copied from interface: ElementStateProvider
    
    Sets the given attribute to the given value.
    
    Specified by:
    
    setAttribute in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    attribute - the attribute name, not null
    
    value - the attribute value
  - getAttribute
```
public String getAttribute(StateNode node,
                           String attribute)
```
    Description copied from interface: ElementStateProvider
    
    Gets the value of the given attribute.
    
    Specified by:
    
    getAttribute in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    attribute - the attribute name, not null
    
    Returns:
    
    the attribute value or null if the attribute has not been set
  - hasAttribute
```
public boolean hasAttribute(StateNode node,
                            String attribute)
```
    Description copied from interface: ElementStateProvider
    
    Checks if the given attribute has been set.
    
    Specified by:
    
    hasAttribute in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    attribute - the attribute name, not null
    
    Returns:
    
    true if the attribute has been set, false otherwise
  - removeAttribute
```
public void removeAttribute(StateNode node,
                            String attribute)
```
    Description copied from interface: ElementStateProvider
    
    Removes the given attribute if it has been set.
    
    Specified by:
    
    removeAttribute in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    attribute - the attribute name, not null
  - getAttributeNames
```
public Stream<String> getAttributeNames(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets the defined attribute names.
    
    Specified by:
    
    getAttributeNames in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the defined attribute names
  - getChildCount
```
public int getChildCount(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets the number of child elements.
    
    Specified by:
    
    getChildCount in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the number of child elements
  - getChild
```
public Element getChild(StateNode node,
                        int index)
```
    Description copied from interface: ElementStateProvider
    
    Returns the child element at the given position.
    
    Specified by:
    
    getChild in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    index - the index of the child element to return
    
    Returns:
    
    the child element
  - insertChild
```
public void insertChild(StateNode node,
                        int index,
                        Element child)
```
    Description copied from interface: ElementStateProvider
    
    Inserts the given child at the given position.
    
    Specified by:
    
    insertChild in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    index - the position at which to insert the new child
    
    child - the child element to insert
  - removeChild
```
public void removeChild(StateNode node,
                        int index)
```
    Description copied from interface: ElementStateProvider
    
    Removes the child at the given position.
    
    Specified by:
    
    removeChild in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    index - the position of the child element to remove
  - removeChild
```
public void removeChild(StateNode node,
                        Element child)
```
    Description copied from interface: ElementStateProvider
    
    Removes the given child.
    
    Specified by:
    
    removeChild in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    child - the child element to remove
  - removeAllChildren
```
public void removeAllChildren(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Removes all child elements.
    
    Specified by:
    
    removeAllChildren in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
  - addEventListener
```
public DomListenerRegistration addEventListener(StateNode node,
                                                String eventType,
                                                DomEventListener listener)
```
    Description copied from interface: ElementStateProvider
    
    Adds a DOM event listener.
    
    Specified by:
    
    addEventListener in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    eventType - the event type
    
    listener - the listener
    
    Returns:
    
    a handle for configuring or removing the listener
  - getProperty
```
public Serializable getProperty(StateNode node,
                                String name)
```
    Description copied from interface: ElementStateProvider
    
    Gets the value of the given property.
    
    Specified by:
    
    getProperty in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    name - the property name, not null
    
    Returns:
    
    the property value, or null if the property has not been set
  - setProperty
```
public void setProperty(StateNode node,
                        String name,
                        Serializable value,
                        boolean emitChange)
```
    Description copied from interface: ElementStateProvider
    
    Sets the given property to the given value.
    
    Specified by:
    
    setProperty in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    name - the property name, not null
    
    value - the property value
    
    emitChange - true to create a change event for the client side
  - removeProperty
```
public void removeProperty(StateNode node,
                           String name)
```
    Description copied from interface: ElementStateProvider
    
    Removes the given property if it has been set.
    
    Specified by:
    
    removeProperty in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    name - the property name, not null
  - hasProperty
```
public boolean hasProperty(StateNode node,
                           String name)
```
    Description copied from interface: ElementStateProvider
    
    Checks if the given property has been set.
    
    Specified by:
    
    hasProperty in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    name - the property name, not null
    
    Returns:
    
    true if the property has been set, false otherwise
  - getPropertyNames
```
public Stream<String> getPropertyNames(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets the defined property names.
    
    Specified by:
    
    getPropertyNames in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the defined property names
  - getClassList
```
public ClassList getClassList(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets a list representation of all CSS class names set for an element.
    
    Specified by:
    
    getClassList in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the class list, never null
  - getStyle
```
public Style getStyle(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Returns a style instance for managing element inline styles.
    
    Specified by:
    
    getStyle in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the element styles
  - setAttribute
```
public void setAttribute(StateNode node,
                         String attribute,
                         AbstractStreamResource resource)
```
    Description copied from interface: ElementStateProvider
    
    Sets the given attribute to the given StreamResource value.
    
    Specified by:
    
    setAttribute in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    attribute - the attribute name, not null
    
    resource - the attribute value, not null
  - addPropertyChangeListener
```
public Registration addPropertyChangeListener(StateNode node,
                                              String name,
                                              PropertyChangeListener listener)
```
    Description copied from interface: ElementStateProvider
    
    Adds a property change listener.
    
    Specified by:
    
    addPropertyChangeListener in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the property
    
    name - the property name to add the listener for
    
    listener - listener to get notifications about property value changes
    
    Returns:
    
    an event registration handle for removing the listener
  - getShadowRoot
```
public StateNode getShadowRoot(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets shadow root for the node if it has been attached.
    
    Specified by:
    
    getShadowRoot in interface ElementStateProvider
    
    Parameters:
    
    node - the node having a shadow root, not null
    
    Returns:
    
    the shadow root of the node, may be null
  - attachShadow
```
public StateNode attachShadow(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Attaches the shadow root for the node.
    
    Specified by:
    
    attachShadow in interface ElementStateProvider
    
    Parameters:
    
    node - the node to attach the shadow root
    
    Returns:
    
    the shadow root of the node
  - attachExistingElement
```
public void attachExistingElement(StateNode node,
                                  String tagName,
                                  Element previousSibling,
                                  ChildElementConsumer callback)
```
    Description copied from interface: ElementStateProvider
    
    Attaches a child element with the given tagName which is the next sibling for the previousSibling.
    The previousSibling parameter value can be null which means that the very first child with the given tagName will be used to attach (if any).
    
    Specified by:
    
    attachExistingElement in interface ElementStateProvider
    
    Parameters:
    
    node - the parent node
    
    tagName - the tag name of the element to attach, not null
    
    previousSibling - previous sibling, may be null
    
    callback - the callback which will be invoked with a server side element instance or an error will be reported, not null
  - appendVirtualChild
```
public void appendVirtualChild(StateNode node,
                               Element child,
                               String type,
                               String payload)
```
    Description copied from interface: ElementStateProvider
    
    Append the given element as a virtual child.
    
    Specified by:
    
    appendVirtualChild in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    child - the child element to add
    
    type - the type of additional payload data
    
    payload - the additional payload data
  - visit
```
public void visit(StateNode node,
                  NodeVisitor visitor)
```
    Description copied from interface: ElementStateProvider
    
    Visit the node applying visitor to it and its descendants based on the return value from the visitor.
    
    Specified by:
    
    visit in interface ElementStateProvider
    
    Parameters:
    
    node - the node to visit
    
    visitor - the visitor to apply to the node
  - setVisible
```
public void setVisible(StateNode node,
                       boolean visible)
```
    Description copied from interface: ElementStateProvider
    
    Sets the node visibility.
    
    Specified by:
    
    setVisible in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    visible - the node visibility value
  - isVisible
```
public boolean isVisible(StateNode node)
```
    Description copied from interface: ElementStateProvider
    
    Gets the node visibility.
    
    Specified by:
    
    isVisible in interface ElementStateProvider
    
    Parameters:
    
    node - the node containing the data
    
    Returns:
    
    the node visibility

com.vaadin.flow.dom.impl.

Class AbstractTextElementStateProvider

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface com.vaadin.flow.dom.ElementStateProvider

Constructor Detail

AbstractTextElementStateProvider

Method Detail

isTextNode

getTag

setAttribute

getAttribute

hasAttribute

removeAttribute

getAttributeNames

getChildCount

getChild

insertChild

removeChild

removeChild

removeAllChildren

addEventListener

getProperty

setProperty

removeProperty

hasProperty

getPropertyNames

getClassList

getStyle

setAttribute

addPropertyChangeListener

getShadowRoot

attachShadow

attachExistingElement

appendVirtualChild

visit

setVisible

isVisible