org.apache.directory.server.xdbm.search.evaluator

Class GreaterEqEvaluator<T>

java.lang.Object

org.apache.directory.server.xdbm.search.evaluator.LeafEvaluator<T>

org.apache.directory.server.xdbm.search.evaluator.GreaterEqEvaluator<T>

All Implemented Interfaces:

Evaluator<org.apache.directory.api.ldap.model.filter.SimpleNode<T>>

public class GreaterEqEvaluator<T>
extends LeafEvaluator<T>

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.evaluator.LeafEvaluator

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

Constructor Summary

Constructors

Constructor and Description
GreaterEqEvaluator(org.apache.directory.api.ldap.model.filter.GreaterEqNode<T> node, Store db, org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager) Creates a new GreaterEqEvaluator

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(org.apache.directory.api.ldap.model.entry.Entry entry) Evaluates whether or not a candidate, satisfies the expression associated with this Evaluator .
boolean	evaluate(org.apache.directory.server.core.api.partition.PartitionTxn partitionTxn, IndexEntry<?,String> indexEntry) Evaluates a candidate to determine if a filter expression selects it.
org.apache.directory.api.ldap.model.filter.GreaterEqNode	getExpression() Gets the expression used by this expression Evaluator.
String	toString()
String	toString(String tabs) Pretty-print an Evaluator

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

getAttributeType, getComparator, getNormalizer

Methods inherited from class java.lang.Object

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

Constructor Detail

GreaterEqEvaluator

public GreaterEqEvaluator(org.apache.directory.api.ldap.model.filter.GreaterEqNode<T> node,
                          Store db,
                          org.apache.directory.api.ldap.model.schema.SchemaManager schemaManager)
                   throws org.apache.directory.api.ldap.model.exception.LdapException

Creates a new GreaterEqEvaluator

Parameters:

node - The GreaterEqNode

db - The Store

schemaManager - The SchemaManager

Throws:

org.apache.directory.api.ldap.model.exception.LdapException - If the creation failed

Method Detail

getExpression

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

Gets the expression used by this expression Evaluator.

Returns:

the AST for the expression

evaluate

public boolean evaluate(org.apache.directory.server.core.api.partition.PartitionTxn partitionTxn,
                        IndexEntry<?,String> indexEntry)
                 throws org.apache.directory.api.ldap.model.exception.LdapException

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:

partitionTxn - The transaction to use

indexEntry - the index record of the entry to evaluate

Returns:

true if filter selects the candidate false otherwise

Throws:

org.apache.directory.api.ldap.model.exception.LdapException - if there are faults during evaluation

evaluate

public boolean evaluate(org.apache.directory.api.ldap.model.entry.Entry entry)
                 throws org.apache.directory.api.ldap.model.exception.LdapException

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:

org.apache.directory.api.ldap.model.exception.LdapException - if there are faults during evaluation

toString

public String toString(String tabs)

Description copied from interface: Evaluator

Pretty-print an Evaluator

Parameters:

tabs - The tabs to add before the evaluator

Returns:

The pretty-printed evaluator and its descendants

See Also:

Object.toString()

toString

public String toString()

Overrides:

toString in class LeafEvaluator<T>

See Also:

Object.toString()