Mercurial > hg > Members > shoshi > jungle > jungle-core
view src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/store/logger/LoggingChildren.java @ 265:b3a04bc21b23 Implementation_of_communication
add UnDefineNode
author | tatsuki |
---|---|
date | Tue, 13 Dec 2016 03:16:12 +0900 |
parents | cac88cf813f1 |
children | c62462c28807 |
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package jp.ac.u_ryukyu.ie.cr.jungle.store.logger; import jp.ac.u_ryukyu.ie.cr.jungle.core.Children; import jp.ac.u_ryukyu.ie.cr.jungle.transaction.node.TreeNode; import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.AppendChildAtOperation; import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.ChildMoveOperation; import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.DeleteChildAtOperation; import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.NodeOperation; import jp.ac.u_ryukyu.ie.cr.jungle.util.DefaultEither; import jp.ac.u_ryukyu.ie.cr.jungle.util.Either; import jp.ac.u_ryukyu.ie.cr.jungle.util.Error; public class LoggingChildren { private final TreeNode wrap; private final OperationLog log; public LoggingChildren(TreeNode _wrap,OperationLog _log) { wrap = _wrap; log = _log; } public int size() { Children children = wrap.getChildren(); return children.size(); } public Either<Error,LoggingNode> edit(NodeOperation _op) { Either<Error,TreeNode> either = _op.invoke(wrap); if(either.isA()){ return DefaultEither.newA(either.a()); } TreeNode newWrap = either.b(); OperationLog newLog = log.add(_op); LoggingNode newLoggingNode = new LoggingNode(newWrap,newLog); return DefaultEither.newB(newLoggingNode); } public Either<Error,LoggingNode> addNewChildAt(final int _pos) { NodeOperation addNewChildAt = new AppendChildAtOperation(_pos); return edit(addNewChildAt); } public Either<Error,LoggingNode> deleteChildAt(final int _pos) { NodeOperation deleteChildAt = new DeleteChildAtOperation(_pos); return edit(deleteChildAt); } public Either<Error,LoggingNode> moveChild(String move, int childNum) { NodeOperation moveChild = new ChildMoveOperation(move,childNum); return edit(moveChild); } public Either<Error,LoggingNode> at(int _pos) { Children children = wrap.getChildren(); Either<Error,TreeNode> either = children.at(_pos); if(either.isA()){ return DefaultEither.newA(either.a()); } TreeNode node = either.b(); LoggingNode logNode = new LoggingNode(node); return DefaultEither.newB(logNode); } }