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BEA Systems, Inc. | ||||||||||
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java.lang.Object | +--weblogic.apache.xpath.Expression | +--weblogic.apache.xpath.operations.Operation
The baseclass for a binary operation.
Field Summary | |
protected Expression |
m_left
The left operand expression. |
protected Expression |
m_right
The right operand expression. |
Fields inherited from class weblogic.apache.xpath.Expression |
m_slocator |
Constructor Summary | |
Operation()
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Method Summary | |
boolean |
canTraverseOutsideSubtree()
Tell if this expression or it's subexpressions can traverse outside the current subtree. |
XObject |
execute(XPathContext xctxt)
Execute a binary operation by calling execute on each of the operands, and then calling the operate method on the derived class. |
XObject |
operate(XObject left,
XObject right)
Apply the operation to two operands, and return the result. |
void |
setLeftRight(Expression l,
Expression r)
Set the left and right operand expressions for this operation. |
Methods inherited from class weblogic.apache.xpath.Expression |
assert,
error,
setSourceLocator,
warn |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Field Detail |
protected Expression m_left
protected Expression m_right
Constructor Detail |
public Operation()
Method Detail |
public boolean canTraverseOutsideSubtree()
public void setLeftRight(Expression l, Expression r)
l
- The left expression operand.r
- The right expression operand.public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
xctxt
- The runtime execution context.public XObject operate(XObject left, XObject right) throws javax.xml.transform.TransformerException
left
- non-null reference to the evaluated left operand.right
- non-null reference to the evaluated right operand.
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Documentation is available at http://e-docs.bea.com/wls/docs61 |
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