Examples of org.apache.commons.jelly.DynaTag

org.apache.commons.jelly.DynaTag

DynaTag represents a Jelly custom tag which can take its attributes dynamically and store them in some data structure. Typically a DynaTag may use either a Map or a DynaBean to implement itself which avoids writing explicit getter and setter methods for each possible attribute.

This kind of tag can be extremely useful when making HTML-like tags which generally output all the attributes which are used in the markup, except one or two special attributes are used, all others pass through.
@author James Strachan @version $Revision: 1.4 $

            if ( tag == null ) {
                return;
            }
            tag.setContext(context);
            
            DynaTag dynaTag = (DynaTag) tag;
    
            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();
    
                Object value = expression.evaluate(context);
                dynaTag.setAttribute(name, value);
            }
        
            tag.doTag(output);
        } 
        catch (JellyException e) {

View Full Code Here

                return;
            }
            tag.setContext(context);
    
            if ( tag instanceof DynaTag ) {        
                DynaTag dynaTag = (DynaTag) tag;
        
                // ### probably compiling this to 2 arrays might be quicker and smaller
                for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    Expression expression = (Expression) entry.getValue();
        
                    Object value = expression.evaluate(context);
                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );

View Full Code Here

            if ( tag == null ) {
                return;
            }
            tag.setContext(context);


            DynaTag dynaTag = (DynaTag) tag;


            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();


                Object value = null;


                if ( Expression.class.isAssignableFrom( dynaTag.getAttributeType(name) ) ) {
                    value = expression;
                } else {
                    value = expression.evaluate(context);
                }


                dynaTag.setAttribute(name, value);
            }


            tag.doTag(output);
        }
        catch (JellyTagException e) {

View Full Code Here

                return;
            }
            tag.setContext(context);


            if ( tag instanceof DynaTag ) {
                DynaTag dynaTag = (DynaTag) tag;


                // ### probably compiling this to 2 arrays might be quicker and smaller
                for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    Expression expression = (Expression) entry.getValue();


                    Class type = dynaTag.getAttributeType(name);
                    Object value = null;
                    if (type != null && type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );

View Full Code Here

                return;
            }
            tag.setContext(context);
            setContextURLs(context);


            DynaTag dynaTag = (DynaTag) tag;


            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();


                Object value = null;


                if ( Expression.class.isAssignableFrom( dynaTag.getAttributeType(name) ) ) {
                    value = expression;
                } else {
                    value = expression.evaluate(context);
                }


                dynaTag.setAttribute(name, value);
            }


            tag.doTag(output);
        }
        catch (JellyTagException e) {

View Full Code Here

            }
            tag.setContext(context);
            setContextURLs(context);


            if ( tag instanceof DynaTag ) {
                DynaTag dynaTag = (DynaTag) tag;


                // ### probably compiling this to 2 arrays might be quicker and smaller
                for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    Expression expression = (Expression) entry.getValue();


                    Class type = dynaTag.getAttributeType(name);
                    Object value = null;
                    if (type != null && type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );

View Full Code Here

            }
            tag.setContext(context);
            setContextURLs(context);


            if ( tag instanceof DynaTag ) {
                DynaTag dynaTag = (DynaTag) tag;


                // ### probably compiling this to 2 arrays might be quicker and smaller
                for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                    Map.Entry entry = (Map.Entry) iter.next();
                    String name = (String) entry.getKey();
                    Expression expression = (Expression) entry.getValue();


                    Class type = dynaTag.getAttributeType(name);
                    Object value = null;
                    if (type != null && type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );

View Full Code Here

                return;
            }
            tag.setContext(context);
            setContextURLs(context);


            DynaTag dynaTag = (DynaTag) tag;


            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();


                Object value = null;


                if ( Expression.class.isAssignableFrom( dynaTag.getAttributeType(name) ) ) {
                    value = expression;
                } else {
                    value = expression.evaluate(context);
                }


                dynaTag.setAttribute(name, value);
            }


            tag.doTag(output);
        }
        catch (JellyTagException e) {

View Full Code Here

            tag = findDynamicTag(context, (StaticTag) tag);
        }
        try {        
            tag.setContext(context);
            
            DynaTag dynaTag = (DynaTag) tag;
    
            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();
    
                Object value = expression.evaluate(context);
                dynaTag.setAttribute(name, value);
            }
        
            tag.doTag(output);
        } 
        catch (JellyException e) {

View Full Code Here

    /** Evaluates the body of a tag */
    public void run(JellyContext context, XMLOutput output) throws Exception {
        try {
            tag.setContext(context);
            
            DynaTag dynaTag = (DynaTag) tag;
    
            // ### probably compiling this to 2 arrays might be quicker and smaller
            for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String name = (String) entry.getKey();
                Expression expression = (Expression) entry.getValue();
    
                Object value = expression.evaluate(context);
                dynaTag.setAttribute(name, value);
            }
        
            tag.doTag(output);
        } 
        catch (JellyException e) {

View Full Code Here

0 1

TOP

Related Classes of org.apache.commons.jelly.DynaTag

org.apache.commons.jelly.impl.DynaTagScript

org.apache.commons.jelly.impl.StaticTagScript

org.apache.commons.jelly.impl.TagScript

org.apache.commons.jelly.tags.define.DynamicTagLibrary

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.