Package org.apache.qpid.server.filter

Class UnaryExpression<T>

java.lang.Object

org.apache.qpid.server.filter.UnaryExpression<T>

All Implemented Interfaces:

Expression<T>

public abstract class UnaryExpression<T>
extends Object
implements Expression<T>

An expression which performs an operation on two expression values

Constructor Summary

Constructors

Constructor	Description
UnaryExpression(Expression<T> left)

Method Summary

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.qpid.server.filter.Expression

evaluate

Constructor Detail

UnaryExpression

public UnaryExpression(Expression<T> left)

Method Detail

createNegate

public static <E> Expression<E> createNegate(Expression<E> left)

createInExpression

public static <E> BooleanExpression<E> createInExpression(Expression<E> right,
                                                          List<?> elements,
                                                          boolean not,
                                                          boolean allowNonJms)

createNOT

public static <E> BooleanExpression<E> createNOT(BooleanExpression<E> left)

createBooleanCast

public static <E> BooleanExpression<E> createBooleanCast(Expression<E> left)

getRight

public Expression<T> getRight()

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:

symbol