Java Doc for GeneralComparison.java in  » XML » saxonb » net » sf » saxon » expr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » saxonb » net.sf.saxon.expr   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    net.sf.saxon.expr.ComputedExpression       net.sf.saxon.expr.BinaryExpression          net.sf.saxon.expr.GeneralComparison GeneralComparison public class GeneralComparison extends BinaryExpression (Code) GeneralComparison: a boolean expression that compares two expressions for equals, not-equals, greater-than or less-than. This implements the operators =, !=, <, >, etc. This implementation is not used when in backwards-compatible mode Field Summary protected  AtomicComparer comparer      protected  int singletonOperator      Constructor Summary public   GeneralComparison(Expression p0, int op, Expression p1)      Create a relational expression identifying the two operands and the operator Parameters:   p0 - the left-hand operand Parameters:   op - the operator, as a token returned by the Tokenizer (e.g. Method Summary protected static  boolean compare(AtomicValue a1, int operator, AtomicValue a2, AtomicComparer comparer, XPathContext context)      public  int computeCardinality()      Determine the static cardinality. protected  String displayOperator()      public  boolean effectiveBooleanValue(XPathContext context)      public  Item evaluateItem(XPathContext context)      protected  GeneralComparison getInverseComparison()      public  ItemType getItemType(TypeHierarchy th)      public  Expression optimize(Optimizer opt, StaticContext env, ItemType contextItemType)      public  Expression typeCheck(StaticContext env, ItemType contextItemType)      Field Detail comparer protected AtomicComparer comparer(Code) singletonOperator protected int singletonOperator(Code) Constructor Detail GeneralComparison public GeneralComparison(Expression p0, int op, Expression p1)(Code) Create a relational expression identifying the two operands and the operator Parameters:   p0 - the left-hand operand Parameters:   op - the operator, as a token returned by the Tokenizer (e.g. Token.LT) Parameters:   p1 - the right-hand operand Method Detail compare protected static boolean compare(AtomicValue a1, int operator, AtomicValue a2, AtomicComparer comparer, XPathContext context) throws XPathException(Code) Compare two atomic values computeCardinality public int computeCardinality()(Code) Determine the static cardinality. Returns [1..1] displayOperator protected String displayOperator()(Code) effectiveBooleanValue public boolean effectiveBooleanValue(XPathContext context) throws XPathException(Code) Evaluate the expression in a boolean context Parameters:   context - the given context for evaluation a boolean representing the result of the numeric comparison of the two operands evaluateItem public Item evaluateItem(XPathContext context) throws XPathException(Code) Evaluate the expression in a given context Parameters:   context - the given context for evaluation a BooleanValue representing the result of the numeric comparison of the two operands getInverseComparison protected GeneralComparison getInverseComparison()(Code) getItemType public ItemType getItemType(TypeHierarchy th)(Code) Determine the data type of the expression Type.BOOLEAN Parameters:   th - optimize public Expression optimize(Optimizer opt, StaticContext env, ItemType contextItemType) throws XPathException(Code) Optimize the expression the checked expression typeCheck public Expression typeCheck(StaticContext env, ItemType contextItemType) throws XPathException(Code) Type-check the expression the checked expression Fields inherited from net.sf.saxon.expr.BinaryExpression protected Expression operand0(Code)(Java Doc) protected Expression operand1(Code)(Java Doc) protected int operator(Code)(Java Doc) Methods inherited from net.sf.saxon.expr.BinaryExpression 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 String displayOperator()(Code)(Java Doc) public boolean equals(Object other)(Code)(Java Doc) public Expression[] getOperands()(Code)(Java Doc) public int getOperator()(Code)(Java Doc) public int hashCode()(Code)(Java Doc) protected static boolean isCommutative(int operator)(Code)(Java Doc) protected static boolean isInverse(int op1, int op2)(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 promote(PromotionOffer offer) throws XPathException(Code)(Java Doc) public Expression simplify(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)