Java Doc for UnaryOperation.java in  » XML » xalan » org » apache » xpath » operations » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » XML » xalan » org.apache.xpath.operations 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.xpath.Expression
      org.apache.xpath.operations.UnaryOperation

All known Subclasses:   org.apache.xpath.operations.Number,  org.apache.xpath.operations.Bool,  org.apache.xpath.operations.Neg,  org.apache.xpath.operations.String,
UnaryOperation
abstract public class UnaryOperation extends Expression implements ExpressionOwner(Code)
The unary operation base class.


Field Summary
protected  Expressionm_right
     The operand for the operation.
final static  longserialVersionUID
    


Method Summary
public  voidcallVisitors(ExpressionOwner owner, XPathVisitor visitor)
    
public  booleancanTraverseOutsideSubtree()
     Tell if this expression or it's subexpressions can traverse outside the current subtree.
public  booleandeepEquals(Expression expr)
    
public  XObjectexecute(XPathContext xctxt)
     Execute the operand and apply the unary operation to the result.
Parameters:
  xctxt - The runtime execution context.
public  voidfixupVariables(java.util.Vector vars, int globalsSize)
     This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.
Parameters:
  vars - List of QNames that correspond to variables.
public  ExpressiongetExpression()
    
public  ExpressiongetOperand()
    
abstract public  XObjectoperate(XObject right)
     Apply the operation to two operands, and return the result.
Parameters:
  right - non-null reference to the evaluated right operand.
public  voidsetExpression(Expression exp)
    
public  voidsetRight(Expression r)
     Set the expression operand for the operation.

Field Detail
m_right
protected Expression m_right(Code)
The operand for the operation.



serialVersionUID
final static long serialVersionUID(Code)





Method Detail
callVisitors
public void callVisitors(ExpressionOwner owner, XPathVisitor visitor)(Code)

See Also:   org.apache.xpath.XPathVisitable.callVisitors(ExpressionOwnerXPathVisitor)



canTraverseOutsideSubtree
public boolean canTraverseOutsideSubtree()(Code)
Tell if this expression or it's subexpressions can traverse outside the current subtree. true if traversal outside the context node's subtree can occur.



deepEquals
public boolean deepEquals(Expression expr)(Code)

See Also:   Expression.deepEquals(Expression)



execute
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)
Execute the operand and apply the unary operation to the result.
Parameters:
  xctxt - The runtime execution context. An XObject that represents the result of applying the unary operation to the evaluated operand.
throws:
  javax.xml.transform.TransformerException -



fixupVariables
public void fixupVariables(java.util.Vector vars, int globalsSize)(Code)
This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time.
Parameters:
  vars - List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame).



getExpression
public Expression getExpression()(Code)

See Also:   ExpressionOwner.getExpression



getOperand
public Expression getOperand()(Code)
the operand of unary operation, as an Expression.



operate
abstract public XObject operate(XObject right) throws javax.xml.transform.TransformerException(Code)
Apply the operation to two operands, and return the result.
Parameters:
  right - non-null reference to the evaluated right operand. non-null reference to the XObject that represents the result of the operation.
throws:
  javax.xml.transform.TransformerException -



setExpression
public void setExpression(Expression exp)(Code)

See Also:   ExpressionOwner.setExpression(Expression)



setRight
public void setRight(Expression r)(Code)
Set the expression operand for the operation.
Parameters:
  r - The expression operand to which the unary operation will be applied.



Methods inherited from org.apache.xpath.Expression
public DTMIterator asIterator(XPathContext xctxt, int contextNode) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public DTMIterator asIteratorRaw(XPathContext xctxt, int contextNode) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public int asNode(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public void assertion(boolean b, java.lang.String msg)(Code)(Java Doc)
public boolean bool(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public boolean canTraverseOutsideSubtree()(Code)(Java Doc)
abstract public boolean deepEquals(Expression expr)(Code)(Java Doc)
public void error(XPathContext xctxt, String msg, Object[] args) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public XObject execute(XPathContext xctxt, int currentNode) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public XObject execute(XPathContext xctxt, int currentNode, DTM dtm, int expType) throws javax.xml.transform.TransformerException(Code)(Java Doc)
abstract public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public XObject execute(XPathContext xctxt, boolean destructiveOK) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public void executeCharsToContentHandler(XPathContext xctxt, ContentHandler handler) throws javax.xml.transform.TransformerException, org.xml.sax.SAXException(Code)(Java Doc)
public void exprAddChild(ExpressionNode n, int i)(Code)(Java Doc)
public ExpressionNode exprGetChild(int i)(Code)(Java Doc)
public int exprGetNumChildren()(Code)(Java Doc)
public ExpressionNode exprGetParent()(Code)(Java Doc)
public void exprSetParent(ExpressionNode n)(Code)(Java Doc)
abstract public void fixupVariables(java.util.Vector vars, int globalsSize)(Code)(Java Doc)
public int getColumnNumber()(Code)(Java Doc)
public ExpressionNode getExpressionOwner()(Code)(Java Doc)
public int getLineNumber()(Code)(Java Doc)
public String getPublicId()(Code)(Java Doc)
public String getSystemId()(Code)(Java Doc)
public boolean isNodesetExpr()(Code)(Java Doc)
final protected boolean isSameClass(Expression expr)(Code)(Java Doc)
public boolean isStableNumber()(Code)(Java Doc)
public double num(XPathContext xctxt) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public void warn(XPathContext xctxt, String msg, Object[] args) throws javax.xml.transform.TransformerException(Code)(Java Doc)
public XMLString xstr(XPathContext xctxt) throws javax.xml.transform.TransformerException(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)

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