org.apache.directory.server.core.event

Interface Evaluator

All Known Implementing Classes:

ExpressionEvaluator, LeafEvaluator, ScopeEvaluator, SubstringEvaluator

public interface Evaluator

Tests if an entry is eligible for return by evaluating a filter expression on the candidate. The evaluation can proceed by applying the filter on the attributes of the entry itself or indices can be used for rapid evaluation.

Version:

$Rev: 927146 $

Author:

Apache Directory Project

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(org.apache.directory.shared.ldap.filter.ExprNode node, String dn, org.apache.directory.shared.ldap.entry.ServerEntry entry) Evaluates a candidate to determine if a filter expression selects it.

Method Detail

evaluate

boolean evaluate(org.apache.directory.shared.ldap.filter.ExprNode node,
                 String dn,
                 org.apache.directory.shared.ldap.entry.ServerEntry entry)
          throws org.apache.directory.shared.ldap.exception.LdapException

Evaluates a candidate to determine if a filter expression selects it.

Parameters:

node - the filter expression to evaluate on the candidate

dn - the normalized distinguished name of the entry being tested

entry - the entry to evaluate

Returns:

true if the filter selects the candidate false otherwise

Throws:

org.apache.directory.shared.ldap.exception.LdapException - if there is a database fault during evaluation