ObjectReader class

Helper class to perform property introspection and dynamic reading.

In contrast to PropertyReflector which only introspects regular objects, this ObjectReader is also able to handle maps and arrays. For maps properties are key-pairs identified by string keys, For arrays properties are elements identified by integer index.

This class has symmetric implementation across all languages supported by Pip.Services toolkit and used to support dynamic data processing.

Because all languages have different casing and case sensitivity rules, this ObjectReader treats all property names as case insensitive. See PropertyReflector

Example

var myObj =  MyObject();

var properties = ObjectReader.getPropertyNames();
ObjectReader.hasProperty(myObj, 'myProperty');
var value = PropertyReflector.getProperty(myObj, 'myProperty');

var myMap = { 'key1': 123, 'key2': 'ABC' };
ObjectReader.hasProperty(myMap, 'key1');
var value = ObjectReader.getProperty(myMap, 'key1');

var myArray = [1, 2, 3]
ObjectReader.hasProperty(myArrat, '0');
var value = ObjectReader.getProperty(myArray, '0');

Constructors

ObjectReader()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

getProperties(dynamic obj) → Map<String, dynamic>

Get values of all properties in specified object and returns them as a map.

getProperty(dynamic obj, String? name) → dynamic

Gets value of object property specified by its name.

getPropertyNames(dynamic obj) → List<String>

Gets names of all properties implemented in specified object.

getValue(dynamic obj) → dynamic

Gets a real object value. If object is a wrapper, it unwraps the value behind it. Otherwise it returns the same object value.

hasProperty(dynamic obj, String? name) → bool

Checks if object has a property with specified name.