Package org.apache.activemq.filter

Class UnaryExpression

java.lang.Object

org.apache.activemq.filter.UnaryExpression

All Implemented Interfaces:

Expression

Direct Known Subclasses:

MultiExpressionEvaluator.CacheExpression

public abstract class UnaryExpression
extends Object
implements Expression

An expression which performs an operation on two expression values

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	right

Constructor Summary

Constructors

Constructor	Description
UnaryExpression(Expression left)

Method Summary

Modifier and Type	Method	Description
static BooleanExpression	createBooleanCast(Expression left)
static BooleanExpression	createInExpression(PropertyExpression right, List<Object> elements, boolean not)
static Expression	createNegate(Expression left)
static BooleanExpression	createNOT(BooleanExpression left)
static BooleanExpression	createXPath(String xpath)
static BooleanExpression	createXQuery(String xpath)
boolean	equals(Object o)	TODO: more efficient hashCode()
abstract String	getExpressionSymbol()	Returns the symbol that represents this binary expression.
Expression	getRight()
int	hashCode()	TODO: more efficient hashCode()
void	setRight(Expression expression)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.activemq.filter.Expression

evaluate

Field Details

right

protected Expression right

Constructor Details

UnaryExpression

public UnaryExpression(Expression left)

Method Details

createNegate

public static Expression createNegate(Expression left)

createInExpression

public static BooleanExpression createInExpression(PropertyExpression right,
 List<Object> elements,
 boolean not)

createNOT

public static BooleanExpression createNOT(BooleanExpression left)

createXPath

public static BooleanExpression createXPath(String xpath)

createXQuery

public static BooleanExpression createXQuery(String xpath)

createBooleanCast

public static BooleanExpression createBooleanCast(Expression left)

getRight

public Expression getRight()

setRight

public void setRight(Expression expression)

toString

public String toString()

Overrides:

toString in class Object

See Also:

• Object.toString()

hashCode

public int hashCode()

TODO: more efficient hashCode()

Overrides:

hashCode in class Object

See Also:

• Object.hashCode()

equals

public boolean equals(Object o)

TODO: more efficient hashCode()

Overrides:

equals in class Object

See Also:

• Object.equals(java.lang.Object)

getExpressionSymbol

public abstract String getExpressionSymbol()

Returns the symbol that represents this binary expression. For example, addition is represented by "+"

Returns: