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package javax.mail.search;
import java.util.
Date;
/**
* This class implements comparisons for Dates
*
* @author Bill Shannon
* @author John Mani
*/
public abstract class
DateTerm extends
ComparisonTerm {
/**
* The date.
*
* @serial
*/
protected
Date date;
private static final long
serialVersionUID = 4818873430063720043L;
/**
* Constructor.
* @param comparison the comparison type
* @param date The Date to be compared against
*/
protected
DateTerm(int
comparison,
Date date) {
this.
comparison =
comparison;
this.
date =
date;
}
/**
* Return the Date to compare with.
*
* @return the date
*/
public
Date getDate() {
return new
Date(
date.
getTime());
}
/**
* Return the type of comparison.
*
* @return the comparison type
*/
public int
getComparison() {
return
comparison;
}
/**
* The date comparison method.
*
* @param d the date in the constructor is compared with this date
* @return true if the dates match, otherwise false
*/
protected boolean
match(
Date d) {
switch (
comparison) {
case
LE:
return
d.
before(
date) ||
d.
equals(
date);
case
LT:
return
d.
before(
date);
case
EQ:
return
d.
equals(
date);
case
NE:
return !
d.
equals(
date);
case
GT:
return
d.
after(
date);
case
GE:
return
d.
after(
date) ||
d.
equals(
date);
default:
return false;
}
}
/**
* Equality comparison.
*/
@
Override
public boolean
equals(
Object obj) {
if (!(
obj instanceof
DateTerm))
return false;
DateTerm dt = (
DateTerm)
obj;
return
dt.
date.
equals(this.
date) && super.equals(
obj);
}
/**
* Compute a hashCode for this object.
*/
@
Override
public int
hashCode() {
return
date.
hashCode() + super.hashCode();
}
}