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Java Source Code / Java Documentation » J2EE » enhydra » org.apache.xmlbeans.samples.cursor 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.xmlbeans.samples.cursor.MixedContent

MixedContent
public class MixedContent (Code)

This sample illustrates how you can use an XML cursor to manipulate the content of an element. Even though working with strongly-typed XML (in which you are accessing the XML through an API generated from schema) provides easy access for getting and setting the entire value of an element or attribute, it does not easily provide finer grained access to an element's content. This sample shows how you can use an XML cursor to "dive into" an element's content, manipulating it on a character-by- character level.

The code in this sample is designed to look at the description of each item in an inventory list, creating a link wherever the description contains a reference to another item in the inventory list. This alters the <description> element so that it contains a mix of text and link elements. Such an element is said to have "mixed content."

This sample uses the schema defined in inventory.xsd.





Method Summary
public  InventoryDocumentlinkItems(InventoryDocument inventoryDoc)
    

Creates "links" between items in an inventory list by inserting a <link> element for each linked item.

public static  voidmain(String[] args)
     Receives an inventory XML instance and rewrites it so that items listed in the inventory point to one another via <link> elements.
public  InventoryDocumentparseXml(String xmlFilePath)
    

Creates a File from the XML path provided in main arguments, then parses the file's contents into a type generated from schema.

Note that this work might have been done in main.

public  booleanvalidateXml(XmlObject xml)
    

Validates the XML, printing error messages when the XML is invalid.




Method Detail
linkItems
public InventoryDocument linkItems(InventoryDocument inventoryDoc)(Code)

Creates "links" between items in an inventory list by inserting a <link> element for each linked item. An XmlCursor instance passes through each <description> element, looking for text matching the name of an item.


Parameters:
  inventoryDoc - An XML document conforming to the schema ininventory.xsd.



main
public static void main(String[] args)(Code)
Receives an inventory XML instance and rewrites it so that items listed in the inventory point to one another via <link> elements.
Parameters:
  args - An array containing one argument: the path to an XML instanceconforming to the schema in inventory.xsd.



parseXml
public InventoryDocument parseXml(String xmlFilePath)(Code)

Creates a File from the XML path provided in main arguments, then parses the file's contents into a type generated from schema.

Note that this work might have been done in main. Isolating it here makes the code separately available from outside this class.


Parameters:
  xmlFilePath - A path to XML based on the schema in inventory.xsd. An instance of a generated schema type that contains the parsedXML.



validateXml
public boolean validateXml(XmlObject xml)(Code)

Validates the XML, printing error messages when the XML is invalid. Note that this method will properly validate any instance of a compiled schema type because all of these types extend XmlObject.

Note that in actual practice, you'll probably want to use an assertion when validating if you want to ensure that your code doesn't pass along invalid XML. This sample prints the generated XML whether or not it's valid so that you can see the result in both cases.


Parameters:
  xml - The XML to validate. true if the XML is valid; otherwise, false



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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