org.apache.directory.server.xdbm.search.impl
Class GreaterEqEvaluator<T,ID extends Comparable<ID>>

java.lang.Object
  org.apache.directory.server.xdbm.search.impl.LeafEvaluator<T,ID>
      org.apache.directory.server.xdbm.search.impl.GreaterEqEvaluator<T,ID>

All Implemented Interfaces:

Evaluator<org.apache.directory.shared.ldap.model.filter.SimpleNode<T>,org.apache.directory.shared.ldap.model.entry.Entry,ID>

public class GreaterEqEvaluator<T,ID extends Comparable<ID>>
extends LeafEvaluator<T,ID>

An Evaluator which determines if candidates are matched by GreaterEqNode assertions.

Author:

Apache Directory Project

Field Summary

Fields inherited from class org.apache.directory.server.xdbm.search.impl.LeafEvaluator

attributeType, db, idx, ldapComparator, node, normalizer, schemaManager

Constructor Summary

GreaterEqEvaluator(org.apache.directory.shared.ldap.model.filter.GreaterEqNode<T> node, Store<org.apache.directory.shared.ldap.model.entry.Entry,ID> db, org.apache.directory.shared.ldap.model.schema.SchemaManager schemaManager)

Method Summary

boolean	evaluate(IndexEntry<?,ID> indexEntry) Evaluates a candidate to determine if a filter expression selects it.
boolean	evaluateEntry(org.apache.directory.shared.ldap.model.entry.Entry entry) Evaluates whether or not a candidate, satisfies the expression associated with this Evaluator .
boolean	evaluateId(ID id)
org.apache.directory.shared.ldap.model.filter.GreaterEqNode	getExpression() Gets the expression used by this expression Evaluator.

Methods inherited from class org.apache.directory.server.xdbm.search.impl.LeafEvaluator

getAttributeType, getComparator, getNormalizer

Methods inherited from class java.lang.Object

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

Constructor Detail

GreaterEqEvaluator

public GreaterEqEvaluator(org.apache.directory.shared.ldap.model.filter.GreaterEqNode<T> node,
                          Store<org.apache.directory.shared.ldap.model.entry.Entry,ID> db,
                          org.apache.directory.shared.ldap.model.schema.SchemaManager schemaManager)
                   throws Exception

Throws:

Exception

Method Detail

getExpression

public org.apache.directory.shared.ldap.model.filter.GreaterEqNode getExpression()

Description copied from interface: Evaluator

Gets the expression used by this expression Evaluator.

Returns:

the AST for the expression

evaluate

public boolean evaluate(IndexEntry<?,ID> indexEntry)
                 throws Exception

Description copied from interface: Evaluator

Evaluates a candidate to determine if a filter expression selects it. If an IndexEntry does has a null reference to the entry object, this Evaluator may set it if it has to access the full entry within the master table of the store. Subsequent evaluations on the IndexEntry then need not access the store to retreive the entry if they need to access it's attributes.

Parameters:

indexEntry - the index record of the entry to evaluate

Returns:

true if filter selects the candidate false otherwise

Throws:

Exception - if there are faults during evaluation

evaluateId

public boolean evaluateId(ID id)
                   throws Exception

Throws:

Exception

evaluateEntry

public boolean evaluateEntry(org.apache.directory.shared.ldap.model.entry.Entry entry)
                      throws Exception

Description copied from interface: Evaluator

Evaluates whether or not a candidate, satisfies the expression associated with this Evaluator .

Parameters:

entry - the candidate entry

Returns:

true if filter selects the candidate false otherwise

Throws:

Exception - if there are faults during evaluation