com.amazonaws.util.json

## クラス JSONWriter

- java.lang.Object
- - com.amazonaws.util.json.JSONWriter

-     public class JSONWriter
      extends java.lang.Object

  JSONWriter provides a quick and convenient way of producing JSON text. The texts produced strictly conform to JSON syntax rules. No whitespace is added, so the results are ready for transmission or storage. Each instance of JSONWriter can produce one JSON text.

  A JSONWriter instance provides a `value` method for appending values to the text, and a `key` method for adding keys before values in objects. There are `array` and `endArray` methods that make and bound array values, and `object` and `endObject` methods which make and bound object values. All of these methods return the JSONWriter instance, permitting a cascade style. For example,

       new JSONWriter(myWriter)
           .object()
               .key("JSON")
               .value("Hello, World!")
           .endObject();

  which writes

       {"JSON":"Hello, World!"}

  The first method called must be `array` or `object`. There are no methods for adding commas or colons. JSONWriter adds them for you. Objects and arrays can be nested up to 20 levels deep.

  This can sometimes be easier than using a JSONObject to build a string.

  バージョン:
    2010-03-11

- - ### フィールドの概要

    フィールド
    修飾子とタイプ | フィールドと説明
    --- | ---
    `protected char` | `mode` The current mode.
    `protected java.io.Writer` | `writer` The writer that will receive the output.

  - ### コンストラクタの概要

    コンストラクタ
    コンストラクタと説明
    `JSONWriter(java.io.Writer w)` Make a fresh JSONWriter.

  - ### メソッドの概要

    メソッド
    修飾子とタイプ | メソッドと説明
    --- | ---
    `JSONWriter` | `array()` Begin appending a new array.
    `JSONWriter` | `endArray()` End an array.
    `JSONWriter` | `endObject()` End an object.
    `JSONWriter` | `key(java.lang.String s)` Append a key.
    `JSONWriter` | `object()` Begin appending a new object.
    `JSONWriter` | `value(boolean b)` Append either the value `true` or the value `false`.
    `JSONWriter` | `value(java.nio.ByteBuffer b)` Appends a ByteBuffer value.
    `JSONWriter` | `value(java.util.Date date)` Appends a date value, as epoch seconds.
    `JSONWriter` | `value(double d)` Append a double value.
    `JSONWriter` | `value(long l)` Append a long value.
    `JSONWriter` | `value(java.lang.Object o)` Append an object value.

    - ### クラスから継承されたメソッド java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### フィールドの詳細

    - #### mode

          protected char mode

      The current mode. Values: 'a' (array), 'd' (done), 'i' (initial), 'k' (key), 'o' (object).

    - #### writer

          protected java.io.Writer writer

      The writer that will receive the output.

  - ### コンストラクタの詳細

    - #### JSONWriter

          public JSONWriter(java.io.Writer w)

      Make a fresh JSONWriter. It can be used to build one JSON text.

  - ### メソッドの詳細

    - #### array

          public JSONWriter array()
                           throws JSONException

      Begin appending a new array. All values until the balancing `endArray` will be appended to this array. The `endArray` method must be called to mark the array's end.
      戻り値:
        this
      例外:
        `JSONException` - If the nesting is too deep, or if the object is started in the wrong place (for example as a key or after the end of the outermost array or object).

    - #### endArray

          public JSONWriter endArray()
                              throws JSONException

      End an array. This method most be called to balance calls to `array`.
      戻り値:
        this
      例外:
        `JSONException` - If incorrectly nested.

    - #### endObject

          public JSONWriter endObject()
                               throws JSONException

      End an object. This method most be called to balance calls to `object`.
      戻り値:
        this
      例外:
        `JSONException` - If incorrectly nested.

    - #### key

          public JSONWriter key(java.lang.String s)
                         throws JSONException

      Append a key. The key will be associated with the next value. In an object, every value must be preceded by a key.
      パラメータ:
        `s` - A key string.
      戻り値:
        this
      例外:
        `JSONException` - If the key is out of place. For example, keys do not belong in arrays or if the key is null.

    - #### object

          public JSONWriter object()
                            throws JSONException

      Begin appending a new object. All keys and values until the balancing `endObject` will be appended to this object. The `endObject` method must be called to mark the object's end.
      戻り値:
        this
      例外:
        `JSONException` - If the nesting is too deep, or if the object is started in the wrong place (for example as a key or after the end of the outermost array or object).

    - #### value

          public JSONWriter value(boolean b)
                           throws JSONException

      Append either the value `true` or the value `false`.
      パラメータ:
        `b` - A boolean.
      戻り値:
        this
      例外:
        `JSONException`

    - #### value

          public JSONWriter value(double d)
                           throws JSONException

      Append a double value.
      パラメータ:
        `d` - A double.
      戻り値:
        this
      例外:
        `JSONException` - If the number is not finite.

    - #### value

          public JSONWriter value(long l)
                           throws JSONException

      Append a long value.
      パラメータ:
        `l` - A long.
      戻り値:
        this
      例外:
        `JSONException`

    - #### value

          public JSONWriter value(java.util.Date date)
                           throws JSONException

      Appends a date value, as epoch seconds.
      パラメータ:
        `date` - The date to append.
      戻り値:
        this
      例外:
        `JSONException`

    - #### value

          public JSONWriter value(java.nio.ByteBuffer b)
                           throws JSONException

      Appends a ByteBuffer value.
      パラメータ:
        `b` - A ByteBuffer.
      戻り値:
        this
      例外:
        `JSONException`

    - #### value

          public JSONWriter value(java.lang.Object o)
                           throws JSONException

      Append an object value.
      パラメータ:
        `o` - The object to append. It can be null, or a Boolean, Number, String, JSONObject, or JSONArray, or an object with a toJSONString() method.
      戻り値:
        this
      例外:
        `JSONException` - If the value is out of sequence.