com.miginfocom.util.expression
Class AndExpression

java.lang.Object
  com.miginfocom.util.expression.CompositeExpression
      com.miginfocom.util.expression.AndExpression

All Implemented Interfaces:

Expression, java.io.Serializable

public final class AndExpression
extends CompositeExpression

A composite expression that AND:s the expressions and returns the result.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.miginfocom.util.expression.CompositeExpression

expression1, expression2

Constructor Summary

AndExpression(Expression expression1, Expression expression2)
Constructor.

Method Summary

boolean

evaluate(PropertyProvider provider) Returns whether the expression validates to true.

Methods inherited from class com.miginfocom.util.expression.CompositeExpression

equals, getExpression1, getExpression2

Methods inherited from class java.lang.Object

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

Constructor Detail

AndExpression

public AndExpression(Expression expression1,
                     Expression expression2)

Constructor.

Parameters:

expression1 - The first expression.

expression2 - The second expression. Only evaluated if expression1 is true.

Method Detail

evaluate

public boolean evaluate(PropertyProvider provider)

Description copied from interface: Expression

Returns whether the expression validates to true.

Parameters:

provider - The object that is to give the value for the property name. It's PropertyProvider.getProperty(com.miginfocom.util.PropertyKey) will be called with propName.

Note! This "callback" object is only in a valid state to get the property during this method call.

Subclasses may disregard this object altogether to have some arbitrary evaluation logic.

Returns:

If the propNameValue evaluates to true depending on operation and propValue.