com.sun.appserv.web.cache.mapping
Class ValueConstraint

java.lang.Object
  com.sun.appserv.web.cache.mapping.ValueConstraint

public class ValueConstraint
extends Object

ValueConstraint class represents a field's value constraint; supports common matching expressions.

Constructor Summary

ValueConstraint(String value, String expr)
create constraint: field value matches with the given string expression

Method Summary

boolean	matches(Object value) match with the given Object value.
void	setCacheOnMatch(boolean cacheOnMatch) set whether to cache if there was a match
void	setCacheOnMatchFailure(boolean cacheOnMatchFailure) set whether to cache if there was a failure to match
void	setMatchExpr(int expr) set field matching expression
void	setMaxValue(float value) set the maximum value
void	setMinValue(float value) set minimum value
void	setValue(String value) set value for this constraint
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueConstraint

public ValueConstraint(String value,
                       String expr)
                throws IllegalArgumentException

create constraint: field value matches with the given string expression

Parameters:

value - specific value to match

expr - match expression

Throws:

IllegalArgumentException

Method Detail

setValue

public void setValue(String value)

set value for this constraint

Parameters:

value - specific value to match

setMinValue

public void setMinValue(float value)

set minimum value

Parameters:

value - minimum value

setMaxValue

public void setMaxValue(float value)

set the maximum value

Parameters:

value - maximum value

setMatchExpr

public void setMatchExpr(int expr)

set field matching expression

Parameters:

expr - match expression

setCacheOnMatch

public void setCacheOnMatch(boolean cacheOnMatch)

set whether to cache if there was a match

Parameters:

cacheOnMatch - should the field value match, enable cache?

setCacheOnMatchFailure

public void setCacheOnMatchFailure(boolean cacheOnMatchFailure)

set whether to cache if there was a failure to match

Parameters:

cacheOnMatchFailure - should the field value doesn't match, enable cache?

matches

public boolean matches(Object value)

match with the given Object value.

Returns:

true if the value passes the constraint, false otherwise.

toString

public String toString()

Overrides:

toString in class Object

Returns:

a string representation of this value/expr element