pip_services3_commons.validate.ObjectComparator module

pip_services3_commons.validate.ObjectComparator

Object comparator implementation

copyright

Conceptual Vision Consulting LLC 2018-2019, see AUTHORS for more details.

license

MIT, see LICENSE for more details.

class pip_services3_commons.validate.ObjectComparator.ObjectComparator

Bases: object

Helper class to perform comparison operations over arbitrary values.

Example:

ObjectComparator.compare(2, "GT", 1)        # Result: true
ObjectComparator.areEqual("A", "B")         # Result: false
static are_equal(value1: Any, value2: Any) → bool

Checks if two values are equal. The operation can be performed over values of any type.

Parameters

  • value1 – the first args to compare

  • value2 – the second args to compare

Returns

true if values are equal and false otherwise

static are_not_equal(value1: Any, value2: Any) → bool

Checks if two values are NOT equal. The operation can be performed over values of any type.

Parameters

  • value1 – the first args to compare

  • value2 – the second args to compare

Returns

true if values are NOT equal and false otherwise

static compare(value1: Any, operation: str, value2: Any) → bool

Perform comparison operation over two arguments. The operation can be performed over values of any type.

Parameters

  • value1 – the first argument to compare

  • operation – the comparison operation: “==” (“=”, “EQ”), “!= ” (“<>”, “NE”); “<”/”>” (“LT”/”GT”), “<=”/”>=” (“LE”/”GE”); “LIKE”.

  • value2 – the second argument to compare

Returns

result of the comparison operation

static is_greater(value1: Any, value2: Any) → bool

Checks if first args is greater than the second one. The operation can be performed over numbers or strings.

Parameters

  • value1 – the first args to compare

  • value2 – the second args to compare

Returns

true if the first args is greater than second and false otherwise.

static is_less(value1: Any, value2: Any) → bool

Checks if first args is less than the second one. The operation can be performed over numbers or strings.

Parameters

  • value1 – the first args to compare

  • value2 – the second args to compare

Returns

true if the first args is less than second and false otherwise.

static match(value1: Any, regexp: Any) → bool

Checks if string matches a regular expression

Parameters

  • value1 – a string args to match

  • regexp – a regular expression string

Returns

true if the args matches regular expression and false otherwise.