richardstartin commented on a change in pull request #8016: URL: https://github.com/apache/pinot/pull/8016#discussion_r785790611
########## File path: pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/nativefst/mutablefst/MutableState.java ########## @@ -0,0 +1,143 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.pinot.segment.local.utils.nativefst.mutablefst; + +import com.google.common.collect.Lists; +import com.google.common.collect.Sets; +import java.util.ArrayList; +import java.util.List; +import java.util.Set; +import org.apache.pinot.segment.local.utils.nativefst.mutablefst.utils.MutableFSTUtils; + + +/** + * The fst's mutable state implementation. + * + * Holds its outgoing {@link MutableArc} objects in an ArrayList allowing additions/deletions + */ +public class MutableState { + + protected char _label; + + // Is terminal + protected boolean _isTerminal; + + // Is first state + protected boolean _isStartState; + + // Outgoing arcs + private final ArrayList<MutableArc> _arcs; + + // Incoming arcs (at least states with arcs that are incoming to us) + private final Set<MutableState> _incomingStates = Sets.newIdentityHashSet(); + + /** + * Default Constructor + */ + public MutableState() { + _arcs = Lists.newArrayList(); + } + + public MutableState(boolean isStartState) { + _isStartState = isStartState; + _arcs = Lists.newArrayList(); + } + + public boolean isTerminal() { + return _isTerminal; + } + + public boolean isStartState() { + return _isStartState; + } + + public char getLabel() { + return _label; + } + + public void setLabel(char label) { + _label = label; + } + + public void setIsTerminal(boolean isTerminal) { + _isTerminal = isTerminal; + } + + /** + * Get the number of outgoing arcs + */ + public int getArcCount() { + return _arcs.size(); + } + + /** + * Get an arc based on it's index the arcs ArrayList + * + * @param index the arc's index + * @return the arc + */ + public MutableArc getArc(int index) { + return _arcs.get(index); + } + + public List<MutableArc> getArcs() { + return _arcs; + } + + @Override + public String toString() { + return "(" + _label + ")"; + } + + // adds an arc but should only be used by MutableFst + void addArc(MutableArc arc) { + _arcs.add(arc); + } + + void addIncomingState(MutableState inState) { + if (inState == this) { + return; + } + Review comment: remove blank line -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org
