com.google.appinventor.components.runtime

Class TinyDB

java.lang.Object

com.google.appinventor.components.runtime.AndroidNonvisibleComponent

com.google.appinventor.components.runtime.TinyDB

All Implemented Interfaces:

Component, Deleteable

public class TinyDB
extends AndroidNonvisibleComponent
implements Component, Deleteable

Persistently store YAIL values on the phone using tags to store and retrieve.

Field Summary

Fields inherited from class com.google.appinventor.components.runtime.AndroidNonvisibleComponent

form

Fields inherited from interface com.google.appinventor.components.runtime.Component

ACCELEROMETER_SENSITIVITY_MODERATE, ACCELEROMETER_SENSITIVITY_STRONG, ACCELEROMETER_SENSITIVITY_WEAK, ALIGNMENT_CENTER, ALIGNMENT_NORMAL, ALIGNMENT_OPPOSITE, ASSET_DIRECTORY, BUTTON_SHAPE_DEFAULT, BUTTON_SHAPE_OVAL, BUTTON_SHAPE_RECT, BUTTON_SHAPE_ROUNDED, COLOR_BLACK, COLOR_BLUE, COLOR_CYAN, COLOR_DEFAULT, COLOR_DKGRAY, COLOR_GRAY, COLOR_GREEN, COLOR_LTGRAY, COLOR_MAGENTA, COLOR_NONE, COLOR_ORANGE, COLOR_PINK, COLOR_RED, COLOR_WHITE, COLOR_YELLOW, DEFAULT_VALUE_COLOR_BLACK, DEFAULT_VALUE_COLOR_BLUE, DEFAULT_VALUE_COLOR_CYAN, DEFAULT_VALUE_COLOR_DEFAULT, DEFAULT_VALUE_COLOR_DKGRAY, DEFAULT_VALUE_COLOR_GRAY, DEFAULT_VALUE_COLOR_GREEN, DEFAULT_VALUE_COLOR_LTGRAY, DEFAULT_VALUE_COLOR_MAGENTA, DEFAULT_VALUE_COLOR_NONE, DEFAULT_VALUE_COLOR_ORANGE, DEFAULT_VALUE_COLOR_PINK, DEFAULT_VALUE_COLOR_RED, DEFAULT_VALUE_COLOR_WHITE, DEFAULT_VALUE_COLOR_YELLOW, DIRECTION_EAST, DIRECTION_MAX, DIRECTION_MIN, DIRECTION_NONE, DIRECTION_NORTH, DIRECTION_NORTHEAST, DIRECTION_NORTHWEST, DIRECTION_SOUTH, DIRECTION_SOUTHEAST, DIRECTION_SOUTHWEST, DIRECTION_WEST, FONT_DEFAULT_SIZE, LAYOUT_ORIENTATION_HORIZONTAL, LAYOUT_ORIENTATION_VERTICAL, LENGTH_FILL_PARENT, LENGTH_PREFERRED, LENGTH_UNKNOWN, SLIDER_MAX_VALUE, SLIDER_MIN_VALUE, SLIDER_THUMB_VALUE, TOAST_LENGTH_LONG, TOAST_LENGTH_SHORT, TYPEFACE_DEFAULT, TYPEFACE_MONOSPACE, TYPEFACE_SANSSERIF, TYPEFACE_SERIF

Constructor Summary

Constructors

Constructor and Description
TinyDB(ComponentContainer container) Creates a new TinyDB component.

Method Summary

Methods

Modifier and Type	Method and Description
void	ClearAll() Clear the entire data store
void	ClearTag(java.lang.String tag) Clear the entry with the given tag
java.lang.Object	GetTags() Return a list of all the tags in the data store
java.lang.Object	GetValue(java.lang.String tag, java.lang.Object valueIfTagNotThere) Retrieve the value stored under the given tag.
void	onDelete()
void	StoreValue(java.lang.String tag, java.lang.Object valueToStore) Store the given value under the given tag.

Methods inherited from class com.google.appinventor.components.runtime.AndroidNonvisibleComponent

getDispatchDelegate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.appinventor.components.runtime.Component

getDispatchDelegate

Constructor Detail

TinyDB

public TinyDB(ComponentContainer container)

Creates a new TinyDB component.

Parameters:

container - the Form that this component is contained in.

Method Detail

StoreValue

public void StoreValue(java.lang.String tag,
              java.lang.Object valueToStore)

Store the given value under the given tag. The storage persists on the phone when the app is restarted.

Parameters:

tag - The tag to use

valueToStore - The value to store. Can be any type of value (e.g. number, text, boolean or list).

GetValue

public java.lang.Object GetValue(java.lang.String tag,
                        java.lang.Object valueIfTagNotThere)

Retrieve the value stored under the given tag. If there's no such tag, then return valueIfTagNotThere.

Parameters:

tag - The tag to use

valueIfTagNotThere - The value returned if tag in not in TinyDB

Returns:

The value stored under the tag. Can be any type of value (e.g. number, text, boolean or list).

GetTags

public java.lang.Object GetTags()

Return a list of all the tags in the data store

Parameters:

-

Returns:

a list of all keys.

ClearAll

public void ClearAll()

Clear the entire data store

ClearTag

public void ClearTag(java.lang.String tag)

Clear the entry with the given tag

Parameters:

tag - The tag to remove.

onDelete

public void onDelete()

Specified by:

onDelete in interface Deleteable