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批注gtask包中的data里面的4个类

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pull/4/head
夏彦博 2 years ago
parent 7b2964bf2d
commit b9e5d499ac
4 changed files with 35 additions and 32 deletions
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12
src/main/java/net/micode/notes/gtask/data/MetaData.java
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@ -24,8 +24,8 @@ import net.micode.notes.tool.GTaskStringUtils;
import org.json.JSONException; import org.json.JSONException;
import org.json.JSONObject; import org.json.JSONObject;
//主要是定义用于处理元数据
public class MetaData extends Task { public class MetaData extends Task {//继承task，是task的子类
private final static String TAG = MetaData.class.getSimpleName(); private final static String TAG = MetaData.class.getSimpleName();
private String mRelatedGid = null; private String mRelatedGid = null;
@ -34,7 +34,7 @@ public class MetaData extends Task {
try { try {
metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid); metaInfo.put(GTaskStringUtils.META_HEAD_GTASK_ID, gid);
} catch (JSONException e) { } catch (JSONException e) {
Log.e(TAG, "failed to put related gid"); Log.e(TAG, "failed to put related gid");//记录错误日志
} }
setNotes(metaInfo.toString()); setNotes(metaInfo.toString());
setName(GTaskStringUtils.META_NOTE_NAME); setName(GTaskStringUtils.META_NOTE_NAME);
@ -47,10 +47,10 @@ public class MetaData extends Task {
@Override @Override
public boolean isWorthSaving() { public boolean isWorthSaving() {
return getNotes() != null; return getNotes() != null;
} }//用于判断数据是否值得保存
@Override @Override
public void setContentByRemoteJSON(JSONObject js) {//用远程的json public void setContentByRemoteJSON(JSONObject js) {//用远程的json设置内容，基础操作元
super.setContentByRemoteJSON(js); super.setContentByRemoteJSON(js);
if (getNotes() != null) { if (getNotes() != null) {
try { try {
@ -66,7 +66,7 @@ public class MetaData extends Task {
@Override @Override
public void setContentByLocalJSON(JSONObject js) {//这几个函数都是通过一部分已知的项推算其他未知的 public void setContentByLocalJSON(JSONObject js) {//这几个函数都是通过一部分已知的项推算其他未知的
// this function should not be called // this function should not be called
throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called"); throw new IllegalAccessError("MetaData:setContentByLocalJSON should not be called");//抛出了IllegalAccessError异常，表明它不应该被直接调用
} }
@Override @Override

5
src/main/java/net/micode/notes/gtask/data/Node.java
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@ -20,7 +20,7 @@ import android.database.Cursor;
import org.json.JSONObject; import org.json.JSONObject;
public abstract class Node { public abstract class Node {//主要定义一些获取属性值的方法
public static final int SYNC_ACTION_NONE = 0; public static final int SYNC_ACTION_NONE = 0;
public static final int SYNC_ACTION_ADD_REMOTE = 1; public static final int SYNC_ACTION_ADD_REMOTE = 1;
@ -38,6 +38,7 @@ public abstract class Node {
public static final int SYNC_ACTION_UPDATE_CONFLICT = 7; public static final int SYNC_ACTION_UPDATE_CONFLICT = 7;
public static final int SYNC_ACTION_ERROR = 8; public static final int SYNC_ACTION_ERROR = 8;
//为不同的同步类型添加调用编号
private String mGid; private String mGid;
@ -45,7 +46,7 @@ public abstract class Node {
private long mLastModified; private long mLastModified;
private boolean mDeleted; private boolean mDeleted;//设置基础值，定义获取参数的方法
public Node() { public Node() {
mGid = null; mGid = null;

24
src/main/java/net/micode/notes/gtask/data/SqlData.java
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@ -71,9 +71,9 @@ public class SqlData {
private ContentValues mDiffDataValues; private ContentValues mDiffDataValues;
public SqlData(Context context) { public SqlData(Context context) {//初始化对象，用于存储数据
mContentResolver = context.getContentResolver(); mContentResolver = context.getContentResolver();
mIsCreate = true; mIsCreate = true;//一类型的变量为true
mDataId = INVALID_ID; mDataId = INVALID_ID;
mDataMimeType = DataConstants.NOTE; mDataMimeType = DataConstants.NOTE;
mDataContent = ""; mDataContent = "";
@ -82,14 +82,14 @@ public class SqlData {
mDiffDataValues = new ContentValues(); mDiffDataValues = new ContentValues();
} }
public SqlData(Context context, Cursor c) { public SqlData(Context context, Cursor c) {//同样是存储数据，另外定义支持冲cursor读入
mContentResolver = context.getContentResolver(); mContentResolver = context.getContentResolver();
mIsCreate = false; mIsCreate = false;//二类型的变量为false
loadFromCursor(c); loadFromCursor(c);
mDiffDataValues = new ContentValues(); mDiffDataValues = new ContentValues();
} }
private void loadFromCursor(Cursor c) { private void loadFromCursor(Cursor c) {//上面用到的从cursor读取的函数，从存储的各个列获取数据
mDataId = c.getLong(DATA_ID_COLUMN); mDataId = c.getLong(DATA_ID_COLUMN);
mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN); mDataMimeType = c.getString(DATA_MIME_TYPE_COLUMN);
mDataContent = c.getString(DATA_CONTENT_COLUMN); mDataContent = c.getString(DATA_CONTENT_COLUMN);
@ -97,9 +97,9 @@ public class SqlData {
mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN); mDataContentData3 = c.getString(DATA_CONTENT_DATA_3_COLUMN);
} }
public void setContent(JSONObject js) throws JSONException { public void setContent(@androidx.annotation.NonNull JSONObject js) throws JSONException {//获取json类型的参数，并且根据它更新自定义的数据单元中的值
long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID; long dataId = js.has(DataColumns.ID) ? js.getLong(DataColumns.ID) : INVALID_ID;//如果有id直接赋值，没有则需要在获取
if (mIsCreate || mDataId != dataId) { if (mIsCreate || mDataId != dataId) {//初始未设置的数据单元通过它设置内容，通过cursor产生的数据元可通过它完成更新
mDiffDataValues.put(DataColumns.ID, dataId); mDiffDataValues.put(DataColumns.ID, dataId);
} }
mDataId = dataId; mDataId = dataId;
@ -131,7 +131,7 @@ public class SqlData {
} }
public JSONObject getContent() throws JSONException { public JSONObject getContent() throws JSONException {
if (mIsCreate) { if (mIsCreate) {//同样的只有通过cursor产生的数据单元可通过这个函数获取数据
Log.e(TAG, "it seems that we haven't created this in database yet"); Log.e(TAG, "it seems that we haven't created this in database yet");
return null; return null;
} }
@ -144,7 +144,7 @@ public class SqlData {
return js; return js;
} }
public void commit(long noteId, boolean validateVersion, long version) { public void commit(long noteId, boolean validateVersion, long version) {//提交数据，并且打上类似于标签的版本号以及验证值
if (mIsCreate) { if (mIsCreate) {
if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) { if (mDataId == INVALID_ID && mDiffDataValues.containsKey(DataColumns.ID)) {
@ -162,10 +162,10 @@ public class SqlData {
} else { } else {
if (mDiffDataValues.size() > 0) { if (mDiffDataValues.size() > 0) {
int result = 0; int result = 0;
if (!validateVersion) { if (!validateVersion) { // 不验证版本的情况下，直接使用ContentResolver更新指定ID的数据
result = mContentResolver.update(ContentUris.withAppendedId( result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null); Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, null, null);
} else { } else { // 需要验证版本的情况下，使用ContentResolver进行条件更新操作
result = mContentResolver.update(ContentUris.withAppendedId( result = mContentResolver.update(ContentUris.withAppendedId(
Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues, Notes.CONTENT_DATA_URI, mDataId), mDiffDataValues,
" ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE " ? in (SELECT " + NoteColumns.ID + " FROM " + TABLE.NOTE

26
src/main/java/net/micode/notes/gtask/data/SqlNote.java
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@ -122,7 +122,7 @@ public class SqlNote {
private ArrayList<SqlData> mDataList; private ArrayList<SqlData> mDataList;
public SqlNote(Context context) { public SqlNote(Context context) {//定义数据单元存储数据
mContext = context; mContext = context;
mContentResolver = context.getContentResolver(); mContentResolver = context.getContentResolver();
mIsCreate = true; mIsCreate = true;
@ -135,7 +135,7 @@ public class SqlNote {
mParentId = 0; mParentId = 0;
mSnippet = ""; mSnippet = "";
mType = Notes.TYPE_NOTE; mType = Notes.TYPE_NOTE;
mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID; mWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID;//直接从设置的属性中获取值
mWidgetType = Notes.TYPE_WIDGET_INVALIDE; mWidgetType = Notes.TYPE_WIDGET_INVALIDE;
mOriginParent = 0; mOriginParent = 0;
mVersion = 0; mVersion = 0;
@ -147,14 +147,14 @@ public class SqlNote {
mContext = context; mContext = context;
mContentResolver = context.getContentResolver(); mContentResolver = context.getContentResolver();
mIsCreate = false; mIsCreate = false;
loadFromCursor(c); loadFromCursor(c);//从cursor中直接获取变量值
mDataList = new ArrayList<SqlData>(); mDataList = new ArrayList<SqlData>();
if (mType == Notes.TYPE_NOTE) if (mType == Notes.TYPE_NOTE)
loadDataContent(); loadDataContent();
mDiffNoteValues = new ContentValues(); mDiffNoteValues = new ContentValues();
} }
public SqlNote(Context context, long id) { public SqlNote(Context context, long id) {//根据id初始化数据单元
mContext = context; mContext = context;
mContentResolver = context.getContentResolver(); mContentResolver = context.getContentResolver();
mIsCreate = false; mIsCreate = false;
@ -175,7 +175,7 @@ public class SqlNote {
}, null); }, null);
if (c != null) { if (c != null) {
c.moveToNext(); c.moveToNext();
loadFromCursor(c); loadFromCursor(c);//通过调用减少重复代码编写
} else { } else {
Log.w(TAG, "loadFromCursor: cursor = null"); Log.w(TAG, "loadFromCursor: cursor = null");
} }
@ -185,7 +185,7 @@ public class SqlNote {
} }
} }
private void loadFromCursor(Cursor c) { private void loadFromCursor(Cursor c) {//直接使用get获得变量值
mId = c.getLong(ID_COLUMN); mId = c.getLong(ID_COLUMN);
mAlertDate = c.getLong(ALERTED_DATE_COLUMN); mAlertDate = c.getLong(ALERTED_DATE_COLUMN);
mBgColorId = c.getInt(BG_COLOR_ID_COLUMN); mBgColorId = c.getInt(BG_COLOR_ID_COLUMN);
@ -200,7 +200,7 @@ public class SqlNote {
mVersion = c.getLong(VERSION_COLUMN); mVersion = c.getLong(VERSION_COLUMN);
} }
private void loadDataContent() { private void loadDataContent() {//这个函数判别查询的数据是否存在，并且读取到数据列表中存储
Cursor c = null; Cursor c = null;
mDataList.clear(); mDataList.clear();
try { try {
@ -210,12 +210,12 @@ public class SqlNote {
}, null); }, null);
if (c != null) { if (c != null) {
if (c.getCount() == 0) { if (c.getCount() == 0) {
Log.w(TAG, "it seems that the note has not data"); Log.w(TAG, "it seems that the note has not data");//遇到文件为空抛出对应的异常
return; return;
} }
while (c.moveToNext()) { while (c.moveToNext()) {
SqlData data = new SqlData(mContext, c); SqlData data = new SqlData(mContext, c);
mDataList.add(data); mDataList.add(data);//向Datalist中加入读取到的数据
} }
} else { } else {
Log.w(TAG, "loadDataContent: cursor = null"); Log.w(TAG, "loadDataContent: cursor = null");
@ -226,7 +226,8 @@ public class SqlNote {
} }
} }
public boolean setContent(JSONObject js) { public boolean setContent(JSONObject js) {//设置数据单元中变量的值
//如果所需的值存在，直接赋值使用，否则再先进行一步读取
try { try {
JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE); JSONObject note = js.getJSONObject(GTaskStringUtils.META_HEAD_NOTE);
if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) { if (note.getInt(NoteColumns.TYPE) == Notes.TYPE_SYSTEM) {
@ -359,7 +360,7 @@ public class SqlNote {
return true; return true;
} }
public JSONObject getContent() { public JSONObject getContent() {//直接读取的方式将所需的数据读到对应变量
try { try {
JSONObject js = new JSONObject(); JSONObject js = new JSONObject();
@ -412,6 +413,7 @@ public class SqlNote {
mDiffNoteValues.put(NoteColumns.PARENT_ID, id); mDiffNoteValues.put(NoteColumns.PARENT_ID, id);
} }
//定义一些简单的获取取值的方法
public void setGtaskId(String gid) { public void setGtaskId(String gid) {
mDiffNoteValues.put(NoteColumns.GTASK_ID, gid); mDiffNoteValues.put(NoteColumns.GTASK_ID, gid);
} }
@ -440,7 +442,7 @@ public class SqlNote {
return mType == Notes.TYPE_NOTE; return mType == Notes.TYPE_NOTE;
} }
public void commit(boolean validateVersion) { public void commit(boolean validateVersion) {//将数据做一定修改提交
if (mIsCreate) { if (mIsCreate) {
if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) { if (mId == INVALID_ID && mDiffNoteValues.containsKey(NoteColumns.ID)) {
mDiffNoteValues.remove(NoteColumns.ID); mDiffNoteValues.remove(NoteColumns.ID);

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