org.apache.directory.api.ldap.model.schema.comparators
Class ComparableComparator<T>

java.lang.Object
  org.apache.directory.api.ldap.model.schema.AbstractSchemaObject
      org.apache.directory.api.ldap.model.schema.LoadableSchemaObject
          org.apache.directory.api.ldap.model.schema.LdapComparator<Comparable<T>>
              org.apache.directory.api.ldap.model.schema.comparators.ComparableComparator<T>

Type Parameters:

T - the type, must extend Comparable

All Implemented Interfaces:

Serializable, Comparator<Comparable<T>>, SchemaObject

public class ComparableComparator<T>
extends LdapComparator<Comparable<T>>

Compares two objects taking into account that one might be a Comparable.

Author:

Apache Directory Project

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.directory.api.ldap.model.schema.AbstractSchemaObject

description, extensions, isEnabled, isObsolete, isReadOnly, locked, names, objectType, oid, schemaName, specification

Constructor Summary

ComparableComparator(String oid)
The ComparableComparator constructor.

Method Summary

int	compare(Comparable<T> o1, Comparable<T> o2) Compares two objects taking into account that one may be a Comparable.

Methods inherited from class org.apache.directory.api.ldap.model.schema.LdapComparator

equals, setSchemaManager, toString

Methods inherited from class org.apache.directory.api.ldap.model.schema.LoadableSchemaObject

copy, getBytecode, getFqcn, isValid, setBytecode, setFqcn

Methods inherited from class org.apache.directory.api.ldap.model.schema.AbstractSchemaObject

addExtension, addExtension, addName, clear, compareOid, copy, getDescription, getExtensions, getName, getNames, getObjectType, getOid, getSchemaName, getSpecification, hashCode, isDisabled, isEnabled, isObsolete, isReadOnly, lock, setDescription, setEnabled, setExtensions, setNames, setNames, setObsolete, setOid, setReadOnly, setSchemaName, setSpecification, unlock

Methods inherited from class java.lang.Object

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

Constructor Detail

ComparableComparator

public ComparableComparator(String oid)

The ComparableComparator constructor.

Parameters:

oid - the comparator OID

Method Detail

compare

public int compare(Comparable<T> o1,
                   Comparable<T> o2)

Compares two objects taking into account that one may be a Comparable. If the first is a comparable then its compareTo operation is called and the result returned as is. If the first is not a Comparable but the second is then its compareTo method is called and the result is returned after being negated. If none are comparable the hashCode of o1 minus the hashCode of o2 is returned.

Parameters:

o1 - the first comparable

o2 - the second comparable

Returns: