Module com.semanticcms.core.taglib

Package com.semanticcms.core.taglib

Class ElementTag<E extends Element>

java.lang.Object

javax.servlet.jsp.tagext.SimpleTagSupport

com.semanticcms.core.taglib.ElementTag<E>

All Implemented Interfaces:

ElementWriter, DynamicAttributes, JspTag, SimpleTag

public abstract class ElementTag<E extends Element>
extends SimpleTagSupport
implements DynamicAttributes, ElementWriter

The base tag for capturing elements.

Constructor Summary

Constructors

Constructor	Description
ElementTag()

Method Summary

Modifier and Type	Method	Description
protected boolean	addDynamicAttribute(String uri, String localName, Object value, List<String> expectedPatterns)	Adds a dynamic attribute.
protected abstract E	createElement()	Called to create the element from doTag.
protected void	doBody(E element, CaptureLevel captureLevel)	This is only called for captureLevel >= META.
void	doTag()	Adds this element to the current page, if part of a page.
protected void	evaluateAttributes(E element, ELContext elContext)	Resolves all attributes, setting into the created element as appropriate, This is only called for captureLevel >= META.
protected E	getElement()	Gets the element, only available after created.
void	setDynamicAttribute(String uri, String localName, Object value)	Deprecated. You should probably be implementing in addDynamicAttribute(java.lang.String, java.lang.String, java.lang.Object, java.util.List)
void	setId(ValueExpression id)

Methods inherited from class javax.servlet.jsp.tagext.SimpleTagSupport

findAncestorWithClass, getJspBody, getJspContext, getParent, setJspBody, setJspContext, setParent

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.semanticcms.core.model.ElementWriter

writeTo

Constructor Details

ElementTag

public ElementTag()

Method Details

setId

public void setId(ValueExpression id)

addDynamicAttribute

protected boolean addDynamicAttribute(String uri,
 String localName,
 Object value,
 List<String> expectedPatterns)
                               throws JspTagException

Adds a dynamic attribute.

Returns:

true when added, or false when attribute not expected and has not been added.

Throws:

JspTagException

See Also:

• setDynamicAttribute(java.lang.String, java.lang.String, java.lang.Object)

setDynamicAttribute

@Deprecated(forRemoval=false)
public void setDynamicAttribute(String uri,
 String localName,
 Object value)
                         throws JspException

Deprecated.

You should probably be implementing in addDynamicAttribute(java.lang.String, java.lang.String, java.lang.Object, java.util.List)

Sets a dynamic attribute.

Specified by:

setDynamicAttribute in interface DynamicAttributes

Throws:

JspException

See Also:

• addDynamicAttribute(java.lang.String, java.lang.String, java.lang.Object, java.util.List)

doTag

public void doTag()
           throws JspException,
IOException

Adds this element to the current page, if part of a page. Sets this element as the current element. Then, if not capturing or capturing META or higher, calls doBody(E, com.semanticcms.core.servlet.CaptureLevel)

Specified by:

doTag in interface SimpleTag

Overrides:

doTag in class SimpleTagSupport

Throws:

JspException

IOException

createElement

protected abstract E createElement()
                            throws JspException,
IOException

Called to create the element from doTag. This is only called for captureLevel >= META.

Throws:

JspException

IOException

getElement

protected E getElement()
                throws IllegalStateException

Gets the element, only available after created.

Throws:

IllegalStateException - if element not yet created

See Also:

• createElement()

evaluateAttributes

protected void evaluateAttributes(E element,
 ELContext elContext)
                           throws JspTagException

Resolves all attributes, setting into the created element as appropriate, This is only called for captureLevel >= META. Attributes are resolved before the element is added to any parent node. Typically, deferred expressions will be evaluated here. Overriding methods must call this implementation.

Throws:

JspTagException

doBody

protected void doBody(E element,
 CaptureLevel captureLevel)
               throws JspException,
IOException

This is only called for captureLevel >= META.

Throws:

JspException

IOException