JObject

Compares the receiver object (this) with the argument object (that) for equivalence.

Any implementation of this method should be an equivalence relation:

• It is reflexive: for any instance x of type Any, x.equals(x) should return true.
• It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any instances x, y, and z of type Any if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is usually necessary to override hashCode to ensure that objects which are "equal" (o1.equals(o2) returns true) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)).

Calculate a hash code value for the object.

The default hashing algorithm is platform dependent.

Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

Return unboxed values from JSON

Example:

JObject(JField("name", JString("joe")) :: Nil).values == Map("name" -> "joe")

Concatenate with another JSON. This is a concatenation monoid: (JValue, ++, JNothing)

Example:

JArray(JInt(1) :: JInt(2) :: Nil) ++ JArray(JInt(3) :: Nil) ==
JArray(List(JInt(1), JInt(2), JInt(3)))

Return nth element from JSON. Meaningful only to JArray, JObject and JField. Returns JNothing for other types.

Example:

JArray(JInt(1) :: JInt(2) :: Nil)(1) == JInt(2)

Return direct child elements.

Example:

JArray(JInt(1) :: JInt(2) :: Nil).children == List(JInt(1), JInt(2))

Return a diff.

When this org.json4s.JValue is a org.json4s.JNothing or a org.json4s.JNull, this method returns scala.None When it has a value it will return scala.Some

When this org.json4s.JValue is a org.json4s.JNothing, this method returns scala.None When it has a value it will return scala.Some