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Java Source Code / Java Documentation » XML » saxonb » net.sf.saxon.functions   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    net.sf.saxon.expr.ComputedExpression       net.sf.saxon.expr.FunctionCall          net.sf.saxon.functions.SystemFunction             net.sf.saxon.functions.Evaluate Evaluate public class Evaluate extends SystemFunction (Code) This class implements the saxon:evaluate(), saxon:expression(), and saxon:eval() extension functions, which are specially-recognized by the system because they need access to parts of the static context Inner Class :public static class PreparedExpression implements Serializable Field Summary final public static  int EVAL      final public static  int EVALUATE      final public static  int EVALUATE_NODE      final public static  int EXPRESSION       InstructionDetails details       IndependentContext staticContext      Method Summary public  void checkArguments(StaticContext env)      public  Item evaluateItem(XPathContext c)      public  int getIntrinsicDependencies()      protected  SequenceType getRequiredType(int arg)      public  SequenceIterator iterate(XPathContext c)      public  Expression preEvaluate(StaticContext env)      preEvaluate: for saxon:expression, if the expression is known at compile time, then it is compiled at compile time. Field Detail EVAL final public static int EVAL(Code) EVALUATE final public static int EVALUATE(Code) EVALUATE_NODE final public static int EVALUATE_NODE(Code) EXPRESSION final public static int EXPRESSION(Code) details InstructionDetails details(Code) staticContext IndependentContext staticContext(Code) Method Detail checkArguments public void checkArguments(StaticContext env) throws XPathException(Code) Method supplied by each class of function to check arguments during parsing, when all the argument expressions have been read evaluateItem public Item evaluateItem(XPathContext c) throws XPathException(Code) Evaluate in a general context getIntrinsicDependencies public int getIntrinsicDependencies()(Code) Determine the dependencies getRequiredType protected SequenceType getRequiredType(int arg)(Code) Get the required type of the nth argument iterate public SequenceIterator iterate(XPathContext c) throws XPathException(Code) Iterate over the results of the function preEvaluate public Expression preEvaluate(StaticContext env) throws XPathException(Code) preEvaluate: for saxon:expression, if the expression is known at compile time, then it is compiled at compile time. In other cases this method suppresses compile-time evaluation by doing nothing (because the value of the expression depends on the runtime context). Fields inherited from net.sf.saxon.functions.SystemFunction protected int operation(Code)(Java Doc) Methods inherited from net.sf.saxon.functions.SystemFunction final protected void addContextDocumentArgument(int pos, String augmentedName) throws StaticError(Code)(Java Doc) public void checkArguments(StaticContext env) throws XPathException(Code)(Java Doc) public int computeCardinality()(Code)(Java Doc) public int computeSpecialProperties()(Code)(Java Doc) public void display(int level, NamePool pool, PrintStream out)(Code)(Java Doc) protected StandardFunction.Entry getDetails()(Code)(Java Doc) public String getErrorCodeForTypeErrors()(Code)(Java Doc) public ItemType getItemType(TypeHierarchy th)(Code)(Java Doc) protected SequenceType getRequiredType(int arg)(Code)(Java Doc) public static void main(String[] args) throws Exception(Code)(Java Doc) public static FunctionCall makeSystemFunction(String name, int arity, NamePool pool)(Code)(Java Doc) public void setDetails(StandardFunction.Entry entry)(Code)(Java Doc) final protected void useContextItemAsDefault()(Code)(Java Doc) Fields inherited from net.sf.saxon.expr.FunctionCall protected Expression[] argument(Code)(Java Doc) Methods inherited from net.sf.saxon.expr.FunctionCall protected int checkArgumentCount(int min, int max, StaticContext env) throws XPathException(Code)(Java Doc) abstract protected void checkArguments(StaticContext env) throws XPathException(Code)(Java Doc) public void display(int level, NamePool pool, PrintStream out)(Code)(Java Doc) final public String getDisplayName(NamePool pool)(Code)(Java Doc) final public int getFunctionNameCode()(Code)(Java Doc) final public int getNumberOfArguments()(Code)(Java Doc) public Iterator iterateSubExpressions()(Code)(Java Doc) public Expression optimize(Optimizer opt, StaticContext env, ItemType contextItemType) throws XPathException(Code)(Java Doc) public Expression preEvaluate(StaticContext env) throws XPathException(Code)(Java Doc) public Expression promote(PromotionOffer offer) throws XPathException(Code)(Java Doc) public void setArguments(Expression[] args)(Code)(Java Doc) final public void setFunctionNameCode(int nc)(Code)(Java Doc) public Expression simplify(StaticContext env) throws XPathException(Code)(Java Doc) final protected Expression simplifyArguments(StaticContext env) throws XPathException(Code)(Java Doc) public Expression typeCheck(StaticContext env, ItemType contextItemType) throws XPathException(Code)(Java Doc) Fields inherited from net.sf.saxon.expr.ComputedExpression protected int locationId(Code)(Java Doc) protected int staticProperties(Code)(Java Doc) Methods inherited from net.sf.saxon.expr.ComputedExpression public void adoptChildExpression(Expression child)(Code)(Java Doc) public void checkPermittedContents(SchemaType parentType, StaticContext env, boolean whole) throws XPathException(Code)(Java Doc) abstract protected int computeCardinality()(Code)(Java Doc) public int computeDependencies()(Code)(Java Doc) public int computeSpecialProperties()(Code)(Java Doc) final public void computeStaticProperties()(Code)(Java Doc) final public Expression doPromotion(Expression subexpression, PromotionOffer offer) throws XPathException(Code)(Java Doc) protected void dynamicError(String message, XPathContext context) throws DynamicError(Code)(Java Doc) protected void dynamicError(String message, String code, XPathContext context) throws DynamicError(Code)(Java Doc) public boolean effectiveBooleanValue(XPathContext context) throws XPathException(Code)(Java Doc) public String evaluateAsString(XPathContext context) throws XPathException(Code)(Java Doc) public Item evaluateItem(XPathContext context) throws XPathException(Code)(Java Doc) public int getCardinality()(Code)(Java Doc) public int getColumnNumber()(Code)(Java Doc) protected int getConstructType()(Code)(Java Doc) public int getDependencies()(Code)(Java Doc) public Executable getExecutable()(Code)(Java Doc) public int getImplementationMethod()(Code)(Java Doc) public InstructionInfo getInstructionInfo()(Code)(Java Doc) public int getIntrinsicDependencies()(Code)(Java Doc) public int getLineNumber()(Code)(Java Doc) final public int getLocationId()(Code)(Java Doc) public LocationProvider getLocationProvider()(Code)(Java Doc) public Container getParentExpression()(Code)(Java Doc) final public String getPublicId()(Code)(Java Doc) public int[] getSlotsUsed()(Code)(Java Doc) final public int getSpecialProperties()(Code)(Java Doc) public String getSystemId()(Code)(Java Doc) public boolean hasBadParentPointer()(Code)(Java Doc) public SequenceIterator iterate(XPathContext context) throws XPathException(Code)(Java Doc) public Iterator iterateSubExpressions()(Code)(Java Doc) public boolean markTailFunctionCalls()(Code)(Java Doc) public void process(XPathContext context) throws XPathException(Code)(Java Doc) public Expression promote(PromotionOffer offer) throws XPathException(Code)(Java Doc) final public void resetStaticProperties()(Code)(Java Doc) public void setLocationId(int id)(Code)(Java Doc) public void setParentExpression(Container parent)(Code)(Java Doc) public Expression simplify(StaticContext env) throws XPathException(Code)(Java Doc) public void suppressValidation(int validationMode)(Code)(Java Doc) protected void typeError(String message, XPathContext context) throws DynamicError(Code)(Java Doc) protected void typeError(String message, String errorCode, XPathContext context) throws DynamicError(Code)(Java Doc) 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)