1. Homepage
  2. DataWeave (2.4)
  3. DataWeave リファレンス
  4. dw::util::Diff

  5. diff

diff

diff(actual: Any, expected: Any, diffConfig: { unordered?: Boolean }​ = ​{}, path: String = "(root)"): Diff

2 つの値の構造的な違いを返します。

オブジェクト間の違いは、順序あり (デフォルト) または順序なしにできます。順序ありにすると、2 つのオブジェクトはキー - 値ペアが同じ順序である場合に、異なっていないと見なされます。違いは ​Difference​ 型として表現されます。

パラメーター

名前 説明

​actual

実際の値。任意のデータ型を使用できます。

​expected

実際の値と比較する期待値。任意のデータ型を使用できます。

​diffConfig

​{ "unordered" : true}​ を使用して、デフォルトから順序なしに変更するための設定 (前述)。

例

この例は、​diff​ のさまざまな使用方法を示しています。

ソース

import diff from dw::util::Diff
ns ns0 http://locahost.com
ns ns1 http://acme.com
output application/dw
---
{
  "a": diff({a: 1}, {b:1}),
  "b": diff({ns0#a: 1}, {ns1#a:1}),
  "c": diff([1,2,3], []),
  "d": diff([], [1,2,3]),
  "e": diff([1,2,3], [1,2,3, 4]),
  "f": diff([{a: 1}], [{a: 2}]),
  "g": diff({a @(c: 2): 1}, {a @(c: 3): 1}),
  "h": diff(true, false),
  "i": diff(1, 2),
  "j": diff("test", "other test"),
  "k": diff({a: 1}, {a:1}),
  "l": diff({ns0#a: 1}, {ns0#a:1}),
  "m": diff([1,2,3], [1,2,3]),
  "n": diff([], []),
  "o": diff([{a: 1}], [{a: 1}]),
  "p": diff({a @(c: 2): 1}, {a @(c:2): 1}),
  "q": diff(true, true),
  "r": diff(1, 1),
  "s": diff("other test", "other test"),
  "t": diff({a:1 ,b: 2},{b: 2, a:1}, {unordered: true}),
  "u": [{format: "ssn",data: "ABC"}] diff [{ format: "ssn",data: "ABC"}]
}

出力

ns ns0 http://locahost.com
ns ns1 http://acme.com
---
{
  a: {
    matches: false,
    diffs: [
      {
        expected: "Entry (root).a with type Number",
        actual: "was not present in object.",
        path: "(root).a"
      }
    ]
  },
  b: {
    matches: false,
    diffs: [
      {
        expected: "Entry (root).ns0#a with type Number",
        actual: "was not present in object.",
        path: "(root).ns0#a"
      }
    ]
  },
  c: {
    matches: false,
    diffs: [
      {
        expected: "Array size is 0",
        actual: "was 3",
        path: "(root)"
      }
    ]
  },
  d: {
    matches: false,
    diffs: [
      {
        expected: "Array size is 3",
        actual: "was 0",
        path: "(root)"
      }
    ]
  },
  e: {
    matches: false,
    diffs: [
      {
        expected: "Array size is 4",
        actual: "was 3",
        path: "(root)"
      }
    ]
  },
  f: {
    matches: false,
    diffs: [
      {
        expected: "1" as String {mimeType: "application/dw"},
        actual: "2" as String {mimeType: "application/dw"},
        path: "(root)[0].a"
      }
    ]
  },
  g: {
    matches: false,
    diffs: [
      {
        expected: "3" as String {mimeType: "application/dw"},
        actual: "2" as String {mimeType: "application/dw"},
        path: "(root).a.@.c"
      }
    ]
  },
  h: {
    matches: false,
    diffs: [
      {
        expected: "false",
        actual: "true",
        path: "(root)"
      }
    ]
  },
  i: {
    matches: false,
    diffs: [
      {
        expected: "2",
        actual: "1",
        path: "(root)"
      }
    ]
  },
  j: {
    matches: false,
    diffs: [
      {
        expected: "\"other test\"",
        actual: "\"test\"",
        path: "(root)"
      }
    ]
  },
  k: {
    matches: true,
    diffs: []
  },
  l: {
    matches: true,
    diffs: []
  },
  m: {
    matches: true,
    diffs: []
  },
  n: {
    matches: true,
    diffs: []
  },
  o: {
    matches: true,
    diffs: []
  },
  p: {
    matches: true,
    diffs: []
  },
  q: {
    matches: true,
    diffs: []
  },
  r: {
    matches: true,
    diffs: []
  },
  s: {
    matches: true,
    diffs: []
  },
  t: {
    matches: true,
    diffs: []
  },
  u: {
    matches: true,
    diffs: []
  }
}