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java.lang.Object | +--com.icl.saxon.functions.Extensions
This class implements functions that are supplied as standard with SAXON, but which are not defined in the XSLT or XPath specifications.
To invoke these functions, use a function call of the form prefix:name() where name is the method name, and prefix maps to a URI such as http://icl.com/saxon/com.icl.saxon.functions.Extensions (only the part of the URI after the last slash is important).
Constructor Summary | |
Extensions()
|
Method Summary | |
static NodeSetValue |
difference(NodeSetValue p1,
NodeSetValue p2)
Return the difference of two node-sets |
static NodeSetValue |
distinct(Context context,
NodeSetValue in,
Expression exp)
Given a node-set, return a subset that includes only nodes with distinct string-values for the supplied expression |
static NodeSetValue |
distinct(NodeSetValue in)
Given a node-set, return a subset that includes only nodes with distinct string-values |
static Value |
eval(Context c,
Expression expr)
Evaluate the stored expression supplied in the first argument |
static Value |
evaluate(Context c,
java.lang.String expr)
Evaluate the expression supplied in the first argument as a string |
static boolean |
exists(Context context,
NodeSetValue nsv,
Expression expression)
Test whether node-set contains a node that satisfies a given condition |
static Value |
expression(Context c,
java.lang.String expr)
Return an object representing a stored expression, from the string supplied in the first argument. |
static boolean |
forAll(Context context,
NodeSetValue nsv,
Expression expression)
Test whether all nodes in a node-set satisfy a given condition |
static Context |
getContext(Context c)
Return the Context object |
static Value |
getUserData(Context c,
java.lang.String name)
Retrieve a value associated with the context node |
static boolean |
hasSameNodes(NodeSetValue p1,
NodeSetValue p2)
Determine whether two node-sets contain the same nodes |
static NodeSetValue |
highest(Context context,
NodeSetValue nsv,
Expression expression)
Get the maximum numeric value of a stored expression over a set of nodes |
static NodeSetValue |
highest(NodeSetValue nsv)
Get the node with maximum numeric value of the string-value of each of a set of nodes |
static Value |
IF(Value test,
Value thenValue,
Value elseValue)
Return the value of the second argument if the first is true, or the third argument otherwise. |
static NodeSetValue |
intersection(NodeSetValue p1,
NodeSetValue p2)
Return the intersection of two node-sets |
static boolean |
isNull(java.lang.Object x)
Test whether an encapsulated Java object is null |
static NodeSetValue |
leading(Context context,
NodeSetValue in,
Expression exp)
Get the nodes that staisfy the given expression, up to and excluding the first one (in document order) that doesn't |
static double |
linenumber(Context c)
Return the line number of the context node. |
static NodeSetValue |
lowest(Context context,
NodeSetValue nsv,
Expression expression)
Get the node with minimum numeric value of a stored expression over a set of nodes |
static NodeSetValue |
lowest(NodeSetValue nsv)
Get the node with minimum numeric value of the string-value of each of a set of nodes |
static double |
max(Context context,
NodeSetValue nsv,
Expression expression)
Get the maximum numeric value of a stored expression over a set of nodes |
static double |
max(NodeSetValue nsv)
Get the maximum numeric value of the string-value of each of a set of nodes |
static double |
min(Context context,
NodeSetValue nsv,
Expression expression)
Get the minimum numeric value of a stored expression over a set of nodes |
static double |
min(NodeSetValue nsv)
Get the minimum numeric value of the string-value of each of a set of nodes |
static NodeSetValue |
nodeset(Value frag)
Convert a result tree fragment to a node-set. |
static java.lang.String |
path(Context c)
Return an XPath expression that identifies the current node |
static NodeSetValue |
range(Context context,
double start,
double finish)
Return a node-set whose nodes have string-values "1", "2", ... |
static void |
setUserData(Context c,
java.lang.String name,
Value value)
Save a value associated with the context node |
static java.lang.String |
showNodeset(Context c,
NodeSetValue in)
A diagnostic function to print the contents of a node-set |
static double |
sum(Context context,
NodeSetValue nsv,
Expression expression)
Total a stored expression over a set of nodes |
static java.lang.String |
systemid(Context c)
Return the system identifier of the context node |
static NodeSetValue |
tokenize(Context context,
java.lang.String s)
Return a node-set by tokenizing a supplied string. |
static NodeSetValue |
tokenize(Context context,
java.lang.String s,
java.lang.String delim)
Return a node-set by tokenizing a supplied string. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public Extensions()
Method Detail |
public static NodeSetValue nodeset(Value frag) throws org.xml.sax.SAXException
public static java.lang.String systemid(Context c) throws org.xml.sax.SAXException
public static double linenumber(Context c) throws org.xml.sax.SAXException
public static NodeSetValue intersection(NodeSetValue p1, NodeSetValue p2) throws org.xml.sax.SAXException
p1
- The first node-setp2
- The second node-setpublic static NodeSetValue difference(NodeSetValue p1, NodeSetValue p2) throws org.xml.sax.SAXException
p1
- The first node-setp2
- The second node-setpublic static boolean hasSameNodes(NodeSetValue p1, NodeSetValue p2) throws org.xml.sax.SAXException
p1
- The first node-setp2
- The second node-setpublic static Value IF(Value test, Value thenValue, Value elseValue) throws org.xml.sax.SAXException
test
- A value treated as a booleanthenValue
- Any valueelseValue
- Any valuepublic static Value evaluate(Context c, java.lang.String expr) throws org.xml.sax.SAXException
public static Value eval(Context c, Expression expr) throws org.xml.sax.SAXException
public static Value expression(Context c, java.lang.String expr) throws org.xml.sax.SAXException
public static double sum(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static double max(NodeSetValue nsv) throws org.xml.sax.SAXException
public static double max(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static double min(NodeSetValue nsv) throws org.xml.sax.SAXException
public static double min(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static NodeSetValue highest(NodeSetValue nsv) throws org.xml.sax.SAXException
public static NodeSetValue highest(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static NodeSetValue lowest(NodeSetValue nsv) throws org.xml.sax.SAXException
public static NodeSetValue lowest(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static NodeSetValue distinct(NodeSetValue in) throws org.xml.sax.SAXException
public static NodeSetValue distinct(Context context, NodeSetValue in, Expression exp) throws org.xml.sax.SAXException
public static NodeSetValue leading(Context context, NodeSetValue in, Expression exp) throws org.xml.sax.SAXException
public static boolean exists(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static boolean forAll(Context context, NodeSetValue nsv, Expression expression) throws org.xml.sax.SAXException
public static NodeSetValue range(Context context, double start, double finish) throws org.xml.sax.SAXException
public static NodeSetValue tokenize(Context context, java.lang.String s) throws org.xml.sax.SAXException
public static NodeSetValue tokenize(Context context, java.lang.String s, java.lang.String delim) throws org.xml.sax.SAXException
public static java.lang.String path(Context c) throws org.xml.sax.SAXException
public static java.lang.String showNodeset(Context c, NodeSetValue in) throws org.xml.sax.SAXException
public static boolean isNull(java.lang.Object x) throws org.xml.sax.SAXException
public static void setUserData(Context c, java.lang.String name, Value value) throws org.xml.sax.SAXException
public static Value getUserData(Context c, java.lang.String name) throws org.xml.sax.SAXException
public static Context getContext(Context c)
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