com.espertech.esper.event.xml

Class SchemaUtil

java.lang.Object

com.espertech.esper.event.xml.SchemaUtil

public class SchemaUtil
extends Object

Utility class for querying schema information via Xerces implementation classes.

Author:

pablo

Constructor Summary

Constructors

Constructor and Description
SchemaUtil()

Method Summary

Modifier and Type	Method and Description
static SchemaItem	findPropertyMapping(SchemaElementComplex def, String property) Finds an apropiate definition for the given property, starting at the * given definition.
static SchemaElementComplex	findRootElement(SchemaModel schema, String namespace, String elementName) Returns the root element for a given schema given a root element name and namespace.
static String	serialize(Node doc) Serialize the given node.
static QName	simpleTypeToQName(short type) Returns the XPathConstants type for a given Xerces type definition.
static Class	toReturnType(QName resultType, Class optionalCastToType) Returns the native type based on XPathConstants qname and an optional cast-to type, if provided.
static Class	toReturnType(SchemaItem item) Returns the Class-type of the schema item.
static Class	toReturnType(short xsType, String typeName, Integer optionalFractionDigits) Returns the type for a give short type and type name.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SchemaUtil

public SchemaUtil()

Method Detail

toReturnType

public static Class toReturnType(SchemaItem item)

Returns the Class-type of the schema item.

Parameters:

item - to to determine type for

Returns:

type

toReturnType

public static Class toReturnType(short xsType,
                                 String typeName,
                                 Integer optionalFractionDigits)

Returns the type for a give short type and type name.

Parameters:

xsType - XSSimplyType type

typeName - type name in XML standard

optionalFractionDigits - fraction digits if any are defined

Returns:

equivalent native type

toReturnType

public static Class toReturnType(QName resultType,
                                 Class optionalCastToType)

Returns the native type based on XPathConstants qname and an optional cast-to type, if provided.

Parameters:

resultType - qname

optionalCastToType - null or cast-to type

Returns:

return type

simpleTypeToQName

public static QName simpleTypeToQName(short type)

Returns the XPathConstants type for a given Xerces type definition.

Parameters:

type - is the type

Returns:

XPathConstants type

findRootElement

public static SchemaElementComplex findRootElement(SchemaModel schema,
                                                   String namespace,
                                                   String elementName)

Returns the root element for a given schema given a root element name and namespace.

Parameters:

schema - is the schema to interrogate

namespace - is the namespace of the root element

elementName - is the name of the root element

Returns:

declaration of root element

findPropertyMapping

public static SchemaItem findPropertyMapping(SchemaElementComplex def,
                                             String property)

Finds an apropiate definition for the given property, starting at the * given definition. First look if the property es an attribute. If not, look at simple and then child element definitions.

Parameters:

def - the definition to start looking

property - the property to look for

Returns:

schema element or null if not found

serialize

public static String serialize(Node doc)

Serialize the given node.

Parameters:

doc - node to serialize

Returns:

serialized node string