org.jaxen.expr

Class DefaultRelationalExpr

java.lang.Object

org.jaxen.expr.DefaultExpr

org.jaxen.expr.DefaultBinaryExpr

org.jaxen.expr.DefaultTruthExpr

org.jaxen.expr.DefaultRelationalExpr

All Implemented Interfaces:

java.io.Serializable, BinaryExpr, Expr, RelationalExpr

Direct Known Subclasses:

DefaultGreaterThanEqualExpr, DefaultGreaterThanExpr, DefaultLessThanEqualExpr, DefaultLessThanExpr

abstract class DefaultRelationalExpr
extends DefaultTruthExpr
implements RelationalExpr

Constructor Summary

Constructors

Constructor and Description
DefaultRelationalExpr(Expr lhs, Expr rhs)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	evaluate(Context context) Evaluate the expression in the given context, and return the result.
protected abstract boolean	evaluateDoubleDouble(java.lang.Double lhs, java.lang.Double rhs)
private boolean	evaluateObjectObject(java.lang.Object lhs, java.lang.Object rhs, Navigator nav)
private java.lang.Object	evaluateSetSet(java.util.List lhsSet, java.util.List rhsSet, Navigator nav)
java.lang.String	toString()

Methods inherited from class org.jaxen.expr.DefaultTruthExpr

bothAreBoolean, bothAreSets, eitherIsBoolean, eitherIsNumber, eitherIsSet, isBoolean, isSet, setIsEmpty

Methods inherited from class org.jaxen.expr.DefaultBinaryExpr

getLHS, getOperator, getRHS, getText, setLHS, setRHS, simplify

Methods inherited from class org.jaxen.expr.DefaultExpr

convertToIterator, convertToList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.jaxen.expr.BinaryExpr

getLHS, getOperator, getRHS

Methods inherited from interface org.jaxen.expr.Expr

getText, simplify

Constructor Detail

DefaultRelationalExpr

DefaultRelationalExpr(Expr lhs,
                      Expr rhs)

Method Detail

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.

Specified by:

evaluate in interface Expr

Parameters:

context - the context in which the expression is evaluated

Returns:

an object representing the result of the evaluation

Throws:

JaxenException

evaluateSetSet

private java.lang.Object evaluateSetSet(java.util.List lhsSet,
                                        java.util.List rhsSet,
                                        Navigator nav)

evaluateObjectObject

private boolean evaluateObjectObject(java.lang.Object lhs,
                                     java.lang.Object rhs,
                                     Navigator nav)

evaluateDoubleDouble

protected abstract boolean evaluateDoubleDouble(java.lang.Double lhs,
                                                java.lang.Double rhs)