Examples of org.apache.commons.betwixt.expression.Expression.evaluate()

Package org.apache.commons.betwixt.expression

Class org.apache.commons.betwixt.expression.Expression

Examples of org.apache.commons.betwixt.expression.Expression.evaluate()

org.apache.commons.betwixt.expression.Expression.evaluate()
Evaluates the expression on the bean with the given context and returns the result @param context evaluate against this Context @return the value of the expression

                            if(idExpression == null) {
                                   throw new IntrospectionException(
                                         "The specified id property wasn't found in the bean ("
                                        + idAttribute + ").");
                            }
                            Object exp = idExpression.evaluate( context );
                            if (exp == null) {
                                // we'll use a random id
                                log.debug("Using random id");
                                id = idGenerator.nextId();

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                    // Element content
                    ElementDescriptor childDescriptor = (ElementDescriptor) childDescriptors[i];
                    Context childContext = context;
                    Expression childExpression = childDescriptor.getContextExpression();
                    if ( childExpression != null ) {
                        Object childBean = childExpression.evaluate( context );
                        if ( childBean != null ) {
                            String qualifiedName = childDescriptor.getQualifiedName();
                            String namespaceUri = childDescriptor.getURI();
                            String localName = childDescriptor.getLocalName();
                            // XXXX: should we handle nulls better

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                } else {
                    // Mixed text content
                    // evaluate the body text 
                    Expression expression = childDescriptors[i].getTextExpression();
                    if ( expression != null ) {
                        Object value = expression.evaluate( context );
                        String text = convertToString( 
                                                        value, 
                                                        childDescriptors[i], 
                                                        context );
                        if ( text != null && text.length() > 0 ) {;

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            }
        } else {
            // evaluate the body text 
            Expression expression = elementDescriptor.getTextExpression();
            if ( expression != null ) {
                Object value = expression.evaluate( context );
                String text = convertToString( value, elementDescriptor, context );
                if ( text != null && text.length() > 0 ) {
                    bodyText( writeContext, text );
                }
            }

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        }
        
        // an element is not empty if it has a non-empty body
        Expression expression = descriptor.getTextExpression();
        if ( expression != null ) {
            Object value = expression.evaluate( context );
            String text = convertToString( value, descriptor, context );
            if ( text != null && text.length() > 0 ) {
                log.trace( "Element has body text which isn't empty." );
                return false;
            }

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        if ( descriptor.isHollow() )
        {
            Expression contentExpression = descriptor.getContextExpression();
            if (contentExpression != null) {
                Object childBean = contentExpression.evaluate(context);
                if (childBean != null)
                {
                    XMLBeanInfo xmlBeanInfo = findXMLBeanInfo(childBean, descriptor);
                    Object currentBean = context.getBean();
                    context.setBean(childBean);

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                        Context context ) 
                            throws 
                                IOException, SAXException {
        Expression expression = attributeDescriptor.getTextExpression();
        if ( expression != null ) {
            Object value = expression.evaluate( context );
            if ( value != null ) {
                String text = value.toString();
                if ( text != null && text.length() > 0 ) {
                    expressAttribute(
                                    attributeDescriptor.getURI(),

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        }
        
        private String valueAttribute(AttributeDescriptor attribute) {
            Expression expression = attribute.getTextExpression();
            if ( expression != null ) {
                Object value = expression.evaluate( context );
                return convertToString( value, attribute, context );
            }
            
            return "";
        }

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            for ( int i = 0, size = childDescriptors.length; i < size; i++ ) {
                ElementDescriptor childDescriptor = childDescriptors[i];
                Context childContext = context;
                Expression childExpression = childDescriptor.getContextExpression();
                if ( childExpression != null ) {
                    Object childBean = childExpression.evaluate( context );
                    if ( childBean != null ) {
                        String qualifiedName = childDescriptor.getQualifiedName();
                        // XXXX: should we handle nulls better
                        if ( childBean instanceof Iterator ) {
                            for ( Iterator iter = (Iterator) childBean; iter.hasNext(); ) {

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            }
        } else {
            // evaluate the body text 
            Expression expression = elementDescriptor.getTextExpression();
            if ( expression != null ) {
                Object value = expression.evaluate( context );
                if ( value != null ) {
                    String text = value.toString();
                    if ( text != null && text.length() > 0 ) {
                        if ( ! writtenContent ) {
                            writtenContent = true;

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