org.apache.qpid.filter

Class UnaryExpression

java.lang.Object

org.apache.qpid.filter.UnaryExpression

All Implemented Interfaces:

Expression

public abstract class UnaryExpression
extends Object
implements Expression

An expression which performs an operation on two expression values

Constructor Summary

Constructors

Constructor and Description
UnaryExpression(Expression left)

Method Summary

Methods

Modifier and Type	Method and Description
static BooleanExpression	createBooleanCast(Expression left)
static BooleanExpression	createInExpression(PropertyExpression right, List elements, boolean not)
static Expression	createNegate(Expression left)
static BooleanExpression	createNOT(BooleanExpression left)
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()
String	toString()

Methods inherited from class java.lang.Object

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

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

evaluate

Constructor Detail

UnaryExpression

public UnaryExpression(Expression left)

Method Detail

createNegate

public static Expression createNegate(Expression left)

createInExpression

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

createNOT

public static BooleanExpression createNOT(BooleanExpression left)

createBooleanCast

public static BooleanExpression createBooleanCast(Expression left)

getRight

public Expression 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