Interface JavaObjectElement

All Superinterfaces:

DomQueryable, Element, EventTarget, Node

public interface JavaObjectElement
extends Element

The Java Object element in the header allows for java classes to be triggered from the DOM by specifying their class name.

Activation

When the Attributes.CLASS_NAME attribute is set, a lookup is made via Class.forName(String, boolean, ClassLoader) to find the class. The class will be loaded if not already loaded, and the Delphi plugin's class loader is used.

If found, then a public static void onDomInitialize(Document) method in the class is called. If the method cannot be found, then a public constructor with a single Document parameter will be called. If that doesn't exist, activation fails.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	INIT_METHOD_NAME

Method Summary

Modifier and Type	Method	Description
boolean	canHaveChildren()	Java objects elements cannot have any child nodes
@Nullable String	getClassName()	Get the name of the linked class.
@Nullable Class<?>	getJavaClass()	Get the class named by getClassName().
void	setClassName(String className)	Set the name of the linked class.
boolean	wasEntrypointCalled()	Get whether the getJavaClass()'s entry point was called.

Methods inherited from interface com.juliewoolie.dom.DomQueryable

getElementsByClassName, getElementsByTagName, querySelector, querySelectorAll

Methods inherited from interface com.juliewoolie.dom.Element

appendChild, appendElement, appendText, clearChildren, firstChild, forEachDescendant, getAttribute, getAttributeEntries, getAttributeNames, getChild, getChildCount, getChildren, getClassList, getCurrentStyle, getId, getInlineStyle, getTagName, getTextContent, getTitleNode, getTooltip, hasAttribute, hasChild, hasChildren, indexOf, insertAfter, insertBefore, isDescendant, lastChild, matches, prependChild, removeAttribute, removeChild, removeChild, removeMatchingChildren, replaceChild, replaceChild, setAttribute, setId, setTextContent, setTitleNode

Methods inherited from interface com.juliewoolie.dom.event.EventTarget

addEventListener, dispatchEvent, getOnAddAttribute, getOnAddOption, getOnAppendChild, getOnAttributeChange, getOnClick, getOnClosing, getOnInput, getOnLoaded, getOnMouseEnter, getOnMouseExit, getOnMouseMove, getOnOptionChange, getOnRemoveAttribute, getOnRemoveChild, getOnRemoveOption, getOnRightClick, getOnSetAttribute, getOnSetOption, getOnSpawned, onAddAttribute, onAddOption, onAppendChild, onAttributeChange, onClick, onClosing, onInput, onLoaded, onMouseEnter, onMouseExit, onMouseMove, onOptionChange, onRemoveAttribute, onRemoveChild, onRemoveOption, onRightClick, onSetAttribute, onSetOption, onSpawned, removeEventListener

Methods inherited from interface com.juliewoolie.dom.Node

enterVisitor, exitVisitor, getDepth, getOwningDocument, getParent, getRenderingBounds, getSiblingIndex, hasFlag, nextSibling, previousSibling

Field Details

INIT_METHOD_NAME

static final String INIT_METHOD_NAME

See Also:

• Constant Field Values

Method Details

canHaveChildren

@Contract("-> false")
boolean canHaveChildren()

Java objects elements cannot have any child nodes

Specified by:

canHaveChildren in interface Element

Returns:

false

getClassName

@Nullable
@Nullable String getClassName()

Get the name of the linked class.

If the class name is set, and the class it was linked to was found, then it can be accessed with getJavaClass().

Shortcut for accessing the Attributes.CLASS_NAME attribute.

Specified by:

getClassName in interface Element

Returns:

Java Class name

getJavaClass

@Nullable
@Nullable Class<?> getJavaClass()

Get the class named by getClassName().

If getClassName() is not set, or if it doesn't name an existing class, then this method will return null.

Returns:

Java class

wasEntrypointCalled

boolean wasEntrypointCalled()

Get whether the getJavaClass()'s entry point was called. If this method returns false, then it means the entrypoint couldn't be found or threw an error when called.

Returns:

true, if the class entry point was called successfully, false otherwise.

setClassName

void setClassName(String className)

Set the name of the linked class.

Shortcut for changing the Attributes.CLASS_NAME attribute.

Specified by:

setClassName in interface Element

Parameters:

className - New class name