org.jaxen.expr
Class DefaultOrExpr
java.lang.Object
org.jaxen.expr.DefaultExpr
org.jaxen.expr.DefaultBinaryExpr
org.jaxen.expr.DefaultTruthExpr
org.jaxen.expr.DefaultLogicalExpr
org.jaxen.expr.DefaultOrExpr
- All Implemented Interfaces:
- BinaryExpr, Expr, LogicalExpr, java.io.Serializable
- class DefaultOrExpr
- extends DefaultLogicalExpr
Method Summary |
protected boolean |
bothAreBoolean(java.lang.Object lhs,
java.lang.Object rhs)
|
protected boolean |
bothAreSets(java.lang.Object lhs,
java.lang.Object rhs)
|
protected boolean |
eitherIsBoolean(java.lang.Object lhs,
java.lang.Object rhs)
|
protected boolean |
eitherIsNumber(java.lang.Object lhs,
java.lang.Object rhs)
|
protected boolean |
eitherIsSet(java.lang.Object lhs,
java.lang.Object rhs)
|
java.lang.Object |
evaluate(Context context)
Evaluate the expression in the given context, and return the result. |
Expr |
getLHS()
Returns the left-hand side of the binary expression. |
java.lang.String |
getOperator()
Returns the operator for the binary expression such as "+" or
"div". |
Expr |
getRHS()
Returns the right-hand side of the binary expression. |
java.lang.String |
getText()
Returns a String containing the XPath expression. |
protected boolean |
isSet(java.lang.Object obj)
|
protected boolean |
setIsEmpty(java.util.List set)
|
void |
setLHS(Expr lhs)
|
void |
setRHS(Expr rhs)
|
Expr |
simplify()
Simplifies the XPath expression. |
java.lang.String |
toString()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
DefaultOrExpr
DefaultOrExpr(Expr lhs,
Expr rhs)
getOperator
public java.lang.String getOperator()
- Description copied from interface:
BinaryExpr
- Returns the operator for the binary expression such as "+" or
"div".
- Specified by:
getOperator
in interface BinaryExpr
- Specified by:
getOperator
in class DefaultBinaryExpr
toString
public java.lang.String toString()
- Overrides:
toString
in class DefaultTruthExpr
evaluate
public java.lang.Object evaluate(Context context)
throws JaxenException
- Description copied from interface:
Expr
- Evaluate the expression in the given context, and return the result.
The result will be a
java.lang.Double
for expressions that
return a number, a java.lang.String
for expressions that
return a string, a java.lang.Boolean
for expressions that
return a boolean, and a java.util.List
for expressions that
return a node-set. In the latter case, the elements of the list are
the actual objects from the source document model. Copies are not made.
- Parameters:
context
- the context in which the expression is evaluated
- Returns:
- an object representing the result of the evaluation
- Throws:
JaxenException
bothAreSets
protected boolean bothAreSets(java.lang.Object lhs,
java.lang.Object rhs)
eitherIsSet
protected boolean eitherIsSet(java.lang.Object lhs,
java.lang.Object rhs)
isSet
protected boolean isSet(java.lang.Object obj)
setIsEmpty
protected boolean setIsEmpty(java.util.List set)
eitherIsBoolean
protected boolean eitherIsBoolean(java.lang.Object lhs,
java.lang.Object rhs)
bothAreBoolean
protected boolean bothAreBoolean(java.lang.Object lhs,
java.lang.Object rhs)
eitherIsNumber
protected boolean eitherIsNumber(java.lang.Object lhs,
java.lang.Object rhs)
getLHS
public Expr getLHS()
- Description copied from interface:
BinaryExpr
- Returns the left-hand side of the binary expression.
- Specified by:
getLHS
in interface BinaryExpr
- Returns:
- the left hand side expression
getRHS
public Expr getRHS()
- Description copied from interface:
BinaryExpr
- Returns the right-hand side of the binary expression.
- Specified by:
getRHS
in interface BinaryExpr
- Returns:
- the right-hand side expression
setLHS
public void setLHS(Expr lhs)
setRHS
public void setRHS(Expr rhs)
getText
public java.lang.String getText()
- Description copied from interface:
Expr
- Returns a String containing the XPath expression.
- Specified by:
getText
in interface Expr
- Returns:
- the text form of this XPath expression
simplify
public Expr simplify()
- Description copied from interface:
Expr
- Simplifies the XPath expression. For example, the expression
//para[1 = 1]
could be simplified to
//para
. In practice, this is usually a noop.
Jaxen does not currently perform any simplification.
- Specified by:
simplify
in interface Expr
- Overrides:
simplify
in class DefaultExpr