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Fix PaperDbException when Context is not needed #201

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Fix PaperDbException when Context is not needed #201

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16 changes: 14 additions & 2 deletions paperdb/src/main/java/io/paperdb/Paper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,17 @@ public static void init(@NonNull Context context) {
mContext = context.getApplicationContext();
}

/**
* Alternative to {@link #init(Context)} when {@link #book()} method is not needed.
*
* <p><b><font color="red">
* Do not use this constructor unless you are explicitely specifying location by using {@link #bookOn(String)}
* or {@link #bookOn(String, String)}.
* </font>
*/
public static void init() {
}

/**
* Returns book instance with the given name
*
Expand Down Expand Up @@ -94,8 +105,9 @@ public static void init(@NonNull Context context) {
}

private static Book getBook(String location, String name) {
if (mContext == null) {
throw new PaperDbException("Paper.init is not called");
if (location == null && mContext == null) {
throw new PaperDbException("Paper.init(Context) is not called. If you are calling Paper.init(), " +
"please call Paper.init(Context) instead.");
}
String key = (location == null ? "" : location) + name;
synchronized (mBookMap) {
Expand Down