org.apache.xpath.operations

Class And

java.lang.Object
- org.apache.xpath.Expression
- - org.apache.xpath.operations.Operation
  - - org.apache.xpath.operations.And

Implemented Interfaces:: ExpressionNode, ExpressionOwner, java.io.Serializable, SourceLocator, XPathVisitable

public class And

extends Operation

The 'and' operation expression executer.

See Also:: Serialized Form

Method Summary
`boolean`	`bool(XPathContext xctxt)` Evaluate this operation directly to a boolean.
`XObject`	`execute(XPathContext xctxt)` AND two expressions and return the boolean result.

Methods inherited from class org.apache.xpath.operations.Operation
`callVisitors`, `canTraverseOutsideSubtree`, `deepEquals`, `execute`, `fixupVariables`, `getExpression`, `getLeftOperand`, `getRightOperand`, `operate`, `setExpression`, `setLeftRight`

asIterator, asIteratorRaw, asNode, assertion, bool, canTraverseOutsideSubtree, deepEquals, error, execute, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, fixupVariables, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr

bool

public boolean bool(XPathContext xctxt)
            throws TransformerException

Evaluate this operation directly to a boolean.
Overrides:
bool in interface Expression
Parameters:
xctxt - The runtime execution context.
Returns:
The result of the operation as a boolean.
Throws:
TransformerException -

execute

public XObject execute(XPathContext xctxt)
            throws TransformerException

AND two expressions and return the boolean result. Override superclass method for optimization purposes.
Overrides:
execute in interface Operation
Parameters:
xctxt - The runtime execution context.
Returns:
XBoolean.S_TRUE or XBoolean.S_FALSE.
Throws:
TransformerException -

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org.apache.xpath.operations

Class And

Method Summary

Methods inherited from class org.apache.xpath.operations.Operation

Methods inherited from class org.apache.xpath.Expression

Method Details

bool

execute