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java.lang.Object | +--weblogic.apache.xpath.Expression | +--weblogic.apache.xpath.objects.XObject | +--weblogic.apache.xpath.objects.XNull
This class represents an XPath null object, and is capable of converting the null to other types, such as a string.
This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.
Fields inherited from class weblogic.apache.xpath.objects.XObject |
CLASS_BOOLEAN,
CLASS_NODESET,
CLASS_NULL,
CLASS_NUMBER,
CLASS_RTREEFRAG,
CLASS_STRING,
CLASS_UNKNOWN,
CLASS_UNRESOLVEDVARIABLE,
m_obj |
Fields inherited from class weblogic.apache.xpath.Expression |
m_slocator |
Constructor Summary | |
XNull()
Create an XObject. |
Method Summary | |
boolean |
bool()
Cast result object to a boolean. |
boolean |
equals(XObject obj2)
Tell if two objects are functionally equal. |
int |
getType()
Tell what kind of class this is. |
java.lang.String |
getTypeString()
Given a request type, return the equivalent string. |
weblogic.apache.xml.dtm.DTMIterator |
iter()
Cast result object to a nodelist. |
double |
num()
Cast result object to a number. |
int |
rtf(XPathContext support)
Cast result object to a result tree fragment. |
java.lang.String |
str()
Cast result object to a string. |
Methods inherited from class weblogic.apache.xpath.objects.XObject |
allowDetachToRelease,
appendToFsb,
boolWithSideEffects,
castToType,
create,
create,
destruct,
detach,
dispatchCharactersEvents,
error,
error,
execute,
fixupVariables,
greaterThan,
greaterThanOrEqual,
lessThan,
lessThanOrEqual,
mutableNodeset,
nodelist,
nodeset,
notEquals,
numWithSideEffects,
object,
rtf,
rtree,
rtree,
toString,
xstr |
Methods inherited from class weblogic.apache.xpath.Expression |
asIterator,
asNode,
assertion,
bool,
canTraverseOutsideSubtree,
error,
execute,
execute,
executeCharsToContentHandler,
isNodesetExpr,
isStableNumber,
num,
setSourceLocator,
warn,
xstr |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
wait,
wait,
wait |
Constructor Detail |
public XNull()
Method Detail |
public int getType()
public java.lang.String getTypeString()
public double num()
public boolean bool()
public java.lang.String str()
public int rtf(XPathContext support)
support
- XPath context to use for the conversionpublic weblogic.apache.xml.dtm.DTMIterator iter()
public boolean equals(XObject obj2)
obj2
- Object to compare this to
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Documentation is available at http://download.oracle.com/docs/cd/E13222_01/wls/docs70 |
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