57 lines
1.5 KiB
JavaScript
57 lines
1.5 KiB
JavaScript
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define(function(require) {
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function MemoryContext(db, readOnly) {
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this.readOnly = readOnly;
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this.objectStore = db;
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}
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MemoryContext.prototype.clear = function(callback) {
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if(this.readOnly) {
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return callback("[MemoryContext] Error: write operation on read only context");
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}
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var objectStore = this.objectStore;
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Object.keys(objectStore).forEach(function(key){
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delete objectStore[key];
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});
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callback(null);
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};
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MemoryContext.prototype.get = function(key, callback) {
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callback(null, this.objectStore[key]);
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};
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MemoryContext.prototype.put = function(key, value, callback) {
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if(this.readOnly) {
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return callback("[MemoryContext] Error: write operation on read only context");
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}
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this.objectStore[key] = value;
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callback(null);
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};
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MemoryContext.prototype.delete = function(key, callback) {
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if(this.readOnly) {
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return callback("[MemoryContext] Error: write operation on read only context");
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}
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delete this.objectStore[key];
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callback(null);
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};
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function Memory(name) {
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this.name = name || "local";
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this.db = {};
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}
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Memory.isSupported = function() {
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return true;
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};
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Memory.prototype.open = function(callback) {
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var that = this;
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callback(null, true);
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};
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Memory.prototype.getReadOnlyContext = function() {
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return new MemoryContext(this.db, true);
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};
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Memory.prototype.getReadWriteContext = function() {
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return new MemoryContext(this.db, false);
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};
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return Memory;
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});
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