/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2008-2010 Sun Microsystems, Inc.
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*/
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package org.opends.guitools.controlpanel.datamodel;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import org.opends.server.admin.std.meta.LocalDBIndexCfgDefn.IndexType;
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import org.opends.server.types.AttributeType;
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/**
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* The class used to describe the index configuration (the normal index: the
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* one used to improve search performance on a given attribute).
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*
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*/
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public class IndexDescriptor extends AbstractIndexDescriptor
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{
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private SortedSet<IndexType> types = new TreeSet<IndexType>();
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private boolean isDatabaseIndex;
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private int entryLimit;
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private AttributeType attr;
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private int hashCode;
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/**
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* Constructor of the index.
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* @param name name of the index.
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* @param attr the attribute type associated with the index attribute.
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* @param backend the backend where the index is defined.
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* @param types the type of indexes (equality, substring, etc.).
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* @param entryLimit the entry limit for the index.
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*/
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public IndexDescriptor(String name, AttributeType attr,
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BackendDescriptor backend,
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SortedSet<IndexType> types, int entryLimit)
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{
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super(name, backend);
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this.attr = attr;
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this.types.addAll(types);
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isDatabaseIndex = isDatabaseIndex(name);
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this.entryLimit = entryLimit;
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recalculateHashCode();
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}
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/**
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* Returns the attribute type associated with the index attribute.
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* @return the attribute type associated with the index attribute.
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*/
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public AttributeType getAttributeType()
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{
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return attr;
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}
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/**
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* {@inheritDoc}
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*/
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public int compareTo(AbstractIndexDescriptor o)
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{
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return getName().compareTo(o.getName());
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}
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/**
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* {@inheritDoc}
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*/
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public int hashCode()
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{
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return hashCode;
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}
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/**
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* Returns the type of indexes (equality, substring, etc.).
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* @return the type of indexes (equality, substring, etc.).
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*/
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public SortedSet<IndexType> getTypes()
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{
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return new TreeSet<IndexType>(types);
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}
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/**
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* Tells whether this is a database index or not. Database indexes are not
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* modifiable and for internal use only.
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* @return <CODE>true</CODE> if this is a database index and
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* <CODE>false</CODE> otherwise.
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*/
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public boolean isDatabaseIndex()
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{
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return isDatabaseIndex;
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}
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/**
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* Tells whether the provide index name corresponds to a database index or
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* not. Database indexes are not modifiable and for internal use only.
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* @return <CODE>true</CODE> if the provide index name corresponds to a
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* database index and <CODE>false</CODE> otherwise.
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*/
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private boolean isDatabaseIndex(String name)
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{
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return name.equalsIgnoreCase("dn2id") ||
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name.equalsIgnoreCase("id2children") ||
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name.equalsIgnoreCase("id2subtree");
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}
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/**
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* {@inheritDoc}
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*/
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public boolean equals(Object o)
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{
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boolean equals = o == this;
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if (!equals)
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{
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equals = o instanceof IndexDescriptor;
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if (equals)
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{
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IndexDescriptor index = (IndexDescriptor)o;
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equals = index.getName().equalsIgnoreCase(getName()) &&
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index.isDatabaseIndex() == isDatabaseIndex() &&
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index.getTypes().equals(getTypes()) &&
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index.getEntryLimit() == getEntryLimit();
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if (equals)
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{
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if ((getBackend() != null) && (index.getBackend() != null))
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{
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// Only compare the backend IDs. In this context is enough
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equals = getBackend().getBackendID().equals(
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index.getBackend().getBackendID());
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}
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}
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}
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}
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return equals;
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}
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/**
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* Returns the entry limit of the index.
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* @return the entry limit of the index.
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*/
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public int getEntryLimit()
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{
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return entryLimit;
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}
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/**
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* {@inheritDoc}
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*/
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protected void recalculateHashCode()
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{
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StringBuilder sb = new StringBuilder();
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for (IndexType t : types)
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{
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sb.append(t+",");
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}
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if (getBackend() != null)
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{
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sb.append(getBackend().getBackendID());
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}
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hashCode = (getName()+sb+entryLimit).hashCode();
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}
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}
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