Examples of org.apache.commons.betwixt.io.BeanWriter

org.apache.commons.betwixt.io.BeanWriter

BeanWriter outputs beans as XML to an io stream.

The output for each bean is an xml fragment (rather than a well-formed xml-document). This allows bean representations to be appended to a document by writing each in turn to the stream. So to create a well formed xml document, you'll need to write the prolog to the stream first. If you append more than one bean to the stream, then you'll need to add a wrapping root element as well.
The line ending to be used is set by {@link #setEndOfLine}.
The output can be formatted (with whitespace) for easy reading by calling {@link #enablePrettyPrint}. The output will be indented. The indent string used is set by {@link #setIndent}.
Bean graphs can sometimes contain cycles. Care must be taken when serializing cyclic bean graphs since this can lead to infinite recursion. The approach taken by BeanWriter is to automatically assign an ID attribute value to beans. When a cycle is encountered, an element is written that has the IDREF attribute set to the id assigned earlier.
The names of the ID and IDREF attributes used can be customized by the XMLBeanInfo. The id's used can also be customized by the user via IDGenerator subclasses. The implementation used can be set by the IdGenerator property. BeanWriter defaults to using SequentialIDGenerator which supplies id values in numeric sequence.
If generated ID attribute values are not acceptable in the output, then this can be disabled by setting the WriteIDs property to false. If a cyclic reference is encountered in this case then a CyclicReferenceException will be thrown. When the WriteIDs property is set to false, it is recommended that this exception is caught by the caller. @author James Strachan @author Martin van den Bemt

            }
        };
        
        StringWriter out = new StringWriter();
        out.write("<?xml version='1.0'?>");
        BeanWriter writer = new BeanWriter(out);
        writer.getBindingConfiguration().setIdMappingStrategy(storingStrategy);
        writer.getXMLIntrospector().register(new InputSource(new StringReader(MAPPING)));
        writer.write(alpha);
        
        String expected = "<?xml version='1.0'?>" +
                "<alpha id=\"1\">" +
                "  <name>apple</name>" +
                "  <beta id=\"2\">" +

View Full Code Here

            }
        };
        
        StringWriter out = new StringWriter();
        out.write("<?xml version='1.0'?>");
        BeanWriter writer = new BeanWriter(out);
        writer.getBindingConfiguration().setIdMappingStrategy(storingStrategy);
        writer.getXMLIntrospector().register(new InputSource(new StringReader(MAPPING)));
        writer.write(alpha);
        
        String expected = "<?xml version='1.0'?>" +
                "<alpha id=\"1\">" +
                "  <name>apple</name>" +
                "  <beta id=\"2\">" +

View Full Code Here


        StringWriter outputWriter = new StringWriter();


        outputWriter.write("<?xml version=\"1.0\" ?>\n");


        BeanWriter beanWriter = new BeanWriter(outputWriter);
        beanWriter.setEndOfLine("\n");
        beanWriter.enablePrettyPrint();
        beanWriter.setWriteEmptyElements(true);
        beanWriter.getBindingConfiguration().setMapIDs(false);
        beanWriter.getXMLIntrospector().register(new InputSource(new StringReader(MAPPING)));
        beanWriter.setEndOfLine("\n"); //force to ensure matches on expected
        beanWriter.write(container);


        String output = outputWriter.toString();


        assertEquals(EXPECTED, output);

View Full Code Here

        // Betwixt just writes out the bean as a fragment
        // we want well-formed xml, we need to add the prolog
        writer.write(XML_PROLOG);


        // Create a BeanWriter which writes to our prepared stream
        BeanWriter beanWriter = new BeanWriter(writer);


        // Configure betwixt
        // For more details see java docs or later in the main documentation
        beanWriter.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(true);
        beanWriter.getBindingConfiguration().setMapIDs(false);
        beanWriter.setEndOfLine("\n");
        beanWriter.enablePrettyPrint();


        // Write example bean as base element 'person'
        beanWriter.write("message", msg);
        beanWriter.flush();


        return writer.toString();
    }

View Full Code Here


        StringWriter outputWriter = new StringWriter();


        outputWriter.write("<?xml version=\"1.0\" ?>\n");


        BeanWriter beanWriter = new BeanWriter(outputWriter);
        beanWriter.setEndOfLine("\n");
        beanWriter.enablePrettyPrint();
        beanWriter.setWriteEmptyElements(true);
        beanWriter.getBindingConfiguration().setMapIDs(false);
        beanWriter.getXMLIntrospector().register(new InputSource(new StringReader(MAPPING)));
        beanWriter.setEndOfLine("\n"); //force to \n so expected values match for sure
        beanWriter.write(element);


        String output = outputWriter.toString();


        assertEquals(EXPECTED, output);

View Full Code Here

        throws Exception
    {
        // Let's try to write the bean
        StringWriter out = new StringWriter();
        out.write("<?xml version='1.0'?>");
        BeanWriter beanWriter = new BeanWriter(out);
        beanWriter.setXMLIntrospector(createXMLIntrospector());
        beanWriter.getBindingConfiguration().setMapIDs(false);
        beanWriter.setEndOfLine("\n");
        beanWriter.enablePrettyPrint();
        
        beanWriter.write(po);
        String xml = "<?xml version='1.0'?><content><printingno>555008805581</printingno>"
                + "<componenttest><compdescription>Text</compdescription></componenttest>"
                + "<componenttest><compdescription>Binding</compdescription></componenttest>"
                + "<componenttest><compdescription>Paper Cover</compdescription>"
                + "</componenttest></content>";

View Full Code Here

     * Description of the Method
     */
    protected void write(Object bean, Writer out)
        throws Exception
    {
        BeanWriter writer = new BeanWriter(out);
        writer.setXMLIntrospector(createXMLIntrospector());
        writer.setEndOfLine("\n");
        writer.enablePrettyPrint();
        writer.write(bean);
    }

View Full Code Here

    
    public void testWriteThenRead() throws Exception {
        // test defaults
        PersonBean bean = new PersonBean(21, "Samual Smith");
        StringWriter stringWriter = new StringWriter();
        BeanWriter beanWriter = new BeanWriter(stringWriter);
        beanWriter.write(bean);
        stringWriter.flush();
        String xml = "<?xml version='1.0'?>" + stringWriter.toString();
        
        BeanReader reader = new BeanReader();
        reader.registerBeanClass( PersonBean.class );
        bean = (PersonBean) reader.parse(new StringReader(xml));
        
        assertEquals("Person age wrong", 21 , bean.getAge());
        assertEquals("Person name wrong", "Samual Smith" , bean.getName());
        
        // test now with attributes for primitives
        bean = new PersonBean(19, "John Smith");
        stringWriter = new StringWriter();
        beanWriter = new BeanWriter(stringWriter);
        beanWriter.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(true);
        beanWriter.write(bean);
        stringWriter.flush();
        xml = "<?xml version='1.0'?>" + stringWriter.toString();
        
        reader = new BeanReader();
        reader.getXMLIntrospector().getConfiguration().setAttributesForPrimitives(true);

View Full Code Here

    }


    public String writeBean(Object bean) throws Exception {
        StringWriter out = new StringWriter();
        out.write("<?xml version='1.0'?>");
        BeanWriter writer = new BeanWriter(out);
    writer.getBindingConfiguration().setMapIDs(false);
        writer.setEndOfLine("\n");
        writer.enablePrettyPrint();
        writer.write( bean );
        return out.getBuffer().toString();
    }

View Full Code Here

public class SystemProperties {
    
    public static void main(String[] args) throws Exception {
        Object bean = System.getProperties();
        
        BeanWriter writer = new BeanWriter();
        writer.enablePrettyPrint();
        writer.write( bean );
    }

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.commons.betwixt.io.BeanWriter

br.com.procempa.modus.services.BeanManager

de.netseeker.ejoe.adapter.BetwixtAdapter

org.apache.commons.betwixt.derived.TestWriteClass

org.apache.commons.betwixt.digester.TestIDRead

org.apache.commons.betwixt.dotbetwixt.TestBeanToXml

org.apache.commons.betwixt.dotbetwixt.TestCustomDotBetwixt

org.apache.commons.betwixt.dotbetwixt.TestDotBetwixtNamespace

org.apache.commons.betwixt.dotbetwixt.TestLoopType

org.apache.commons.betwixt.dotbetwixt.TestMap

org.apache.commons.betwixt.dotbetwixt.TestMixedCollections

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.