Examples of org.apache.commons.beanutils.ConvertingWrapDynaBean

org.apache.commons.beanutils.ConvertingWrapDynaBean

Implementation of DynaBean that wraps a standard JavaBean instance, so that DynaBean APIs can be used to access its properties, though this implementation allows type conversion to occur when properties are set. This means that (say) Strings can be passed in as values in setter methods and this DynaBean will convert them to the correct primitive data types.

IMPLEMENTATION NOTE - This implementation does not support the contains() and remove() methods.
@author James Strachan @version $Revision: 926529 $ $Date: 2010-03-23 11:44:24 +0000 (Tue, 23 Mar 2010) $

    // DynaTag interface
    //-------------------------------------------------------------------------                    
    public void beforeSetAttributes() throws Exception {
        // create a new dynabean before the attributes are set
        bean = factory.newInstance();
        setDynaBean( new ConvertingWrapDynaBean( bean ) );
    }

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                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );
                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);
                    dynaBean.set(name, value);
                }
            }
        
            tag.doTag(output);
        }

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    }


    public void beforeSetAttributes() throws Exception {
        // create a new dynabean before the attributes are set
        bean = beanClass.newInstance();
        setDynaBean( new ConvertingWrapDynaBean( bean ) );


        setAttributesSet.clear();                    
    }

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                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );
                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();


                    DynaProperty property = dynaBean.getDynaClass().getDynaProperty(name);
                    if (property == null) {
                        throw new JellyException("This tag does not understand the '" + name + "' attribute" );
                    }
                    Class type = property.getType();


                    Object value = null;
                    if (type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaBean.set(name, value);
                }
            }


            tag.doTag(output);
        }

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    public void beforeSetAttributes() throws JellyTagException {
        // create a new dynabean before the attributes are set
        try {
            bean = beanClass.newInstance();
            setDynaBean( new ConvertingWrapDynaBean( bean ) );
        } catch (InstantiationException e) {
            throw new JellyTagException("Could not instantiate dynabean",e);
        } catch (IllegalAccessException e) {
            throw new JellyTagException("Could not instantiate dynabean",e);
        }

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                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );
                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();


                    DynaProperty property = dynaBean.getDynaClass().getDynaProperty(name);
                    if (property == null) {
                        throw new JellyException("This tag does not understand the '" + name + "' attribute" );
                    }
                    Class type = property.getType();


                    Object value = null;
                    if (type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaBean.set(name, value);
                }
            }


            tag.doTag(output);
            output.flush();

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    public void beforeSetAttributes() throws JellyTagException {
        // create a new dynabean before the attributes are set
        try {
            bean = beanClass.newInstance();
            setDynaBean( new ConvertingWrapDynaBean( bean ) );
        } catch (InstantiationException e) {
            throw new JellyTagException("Could not instantiate dynabean",e);
        } catch (IllegalAccessException e) {
            throw new JellyTagException("Could not instantiate dynabean",e);
        }

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                    dynaTag.setAttribute(name, value);
                }
            }
            else {
                // treat the tag as a bean
                DynaBean dynaBean = new ConvertingWrapDynaBean( tag );
                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();


                    DynaProperty property = dynaBean.getDynaClass().getDynaProperty(name);
                    if (property == null) {
                        throw new JellyException("This tag does not understand the '" + name + "' attribute" );
                    }
                    Class type = property.getType();


                    Object value = null;
                    if (type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) {
                        value = expression;
                    }
                    else {
                        value = expression.evaluateRecurse(context);
                    }
                    dynaBean.set(name, value);
                }
            }


            tag.doTag(output);
            if (output != null) {

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    }


    public void beforeSetAttributes() throws Exception {
        // create a new dynabean before the attributes are set
        bean = beanClass.newInstance();
        setDynaBean( new ConvertingWrapDynaBean( bean ) );


        setAttributesSet.clear();                    
    }

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org.apache.commons.jelly.impl.DynamicBeanTag

org.apache.commons.jelly.impl.DynaTagScript

org.apache.commons.jelly.impl.TagScript

org.apache.commons.jelly.tags.define.BeanTag

org.apache.commons.jelly.tags.swing.ComponentTag

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