Json (Reactive Relational Database Connectivity - Postgresql 0.8.0.RELEASE API)

java.lang.Object
- io.r2dbc.postgresql.codec.Json

```
public abstract class Json
extends Object
```
Value object to represent JSON values.
JSON values are divided into input and output values. Input values are provided by code that wants to bind values to a query. Input values are intended to be consumed by the driver. Input values should not be consumed by application code.
Output values are returned by the driver to be consumed by application code using the following methods:
JSON values should be generally considered for single-consumption only. Output values retain a reference to a potentially pooled memory buffer and must be consumed to avoid memory leaks.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`abstract byte[]`	`asArray()` Returns the value as `byte[]`.
`abstract String`	`asString()` Returns the value as `String`.
`abstract <T> T`	`mapBuffer(Function<ByteBuffer,? extends T> mappingFunction)` Returns an object consisting of the result of applying the given mapping `Function` to the `ByteBuffer` of this JSON value.
`abstract <T> T`	`mapByteBuf(Function<io.netty.buffer.ByteBuf,? extends T> mappingFunction)` Returns an object consisting of the result of applying the given mapping `Function` to the `ByteBuf` of this JSON value.
`abstract <T> T`	`mapInputStream(Function<InputStream,? extends T> mappingFunction)` Returns an object consisting of the result of applying the given mapping `Function` to the `InputStream` of this JSON value.
`static Json`	`of(byte[] value)` Creates a `Json` object from a `byte[] value`.
`static Json`	`of(io.netty.buffer.ByteBuf buffer)` Creates a `Json` object from a `ByteBuf`.
`static Json`	`of(ByteBuffer buffer)` Creates a `Json` object from a `ByteBuffer`.
`static Json`	`of(InputStream inputStream)` Creates a `Json` object from a `InputStream`.
`static Json`	`of(String value)` Creates a `Json` object from a `String`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - of
```
public static Json of(ByteBuffer buffer)
```
    Creates a Json object from a ByteBuffer.
    
    Parameters:
    
    buffer - the JSON value as ByteBuffer
    
    Returns:
    
    Json object from a ByteBuffer.
    
    Throws:
    
    IllegalArgumentException - if buffer is null
  - of
```
public static Json of(io.netty.buffer.ByteBuf buffer)
```
    Creates a Json object from a ByteBuf.
    The ByteBuf is released after encoding the value.
    
    Parameters:
    
    buffer - the JSON value as ByteBuf
    
    Returns:
    
    Json object from a ByteBuf.
    
    Throws:
    
    IllegalArgumentException - if buffer is null
  - of
```
public static Json of(InputStream inputStream)
```
    Creates a Json object from a InputStream.
    The InputStream is closed after encoding the value.
    
    Parameters:
    
    inputStream - the JSON value as InputStream
    
    Returns:
    
    Json object from a InputStream.
    
    Throws:
    
    IllegalArgumentException - if inputStream is null
  - of
```
public static Json of(byte[] value)
```
    Creates a Json object from a byte[] value.
    
    Parameters:
    
    value - the JSON value as byte[]
    
    Returns:
    
    Json object from a byte[] value.
    
    Throws:
    
    IllegalArgumentException - if value is null
  - of
```
public static Json of(String value)
```
    Creates a Json object from a String. Uses UTF-8 encoding to convert the value into its binary representation.
    
    Parameters:
    
    value - the JSON value as String
    
    Returns:
    
    Json object from a String.
    
    Throws:
    
    IllegalArgumentException - if value is null
  - mapBuffer
```
@Nullable
public abstract <T> T mapBuffer(Function<ByteBuffer,? extends T> mappingFunction)
```
    Returns an object consisting of the result of applying the given mapping Function to the ByteBuffer of this JSON value.
    Consumption methods should be called exactly once as the underlying JSON value is typically released after consumption.
    
    Type Parameters:
    
    T - return type.
    
    Parameters:
    
    mappingFunction - mapping function that gets applied to the ByteBuffer representation of this JSON value.
    
    Returns:
    
    the mapped value. Can be null.
  - mapByteBuf
```
@Nullable
public abstract <T> T mapByteBuf(Function<io.netty.buffer.ByteBuf,? extends T> mappingFunction)
```
    Returns an object consisting of the result of applying the given mapping Function to the ByteBuf of this JSON value.
    Consumption methods should be called exactly once as the underlying JSON value is typically released after consumption.
    
    Type Parameters:
    
    T - return type.
    
    Parameters:
    
    mappingFunction - mapping function that gets applied to the ByteBuf representation of this JSON value.
    
    Returns:
    
    the mapped value. Can be null.
  - mapInputStream
```
@Nullable
public abstract <T> T mapInputStream(Function<InputStream,? extends T> mappingFunction)
```
    Returns an object consisting of the result of applying the given mapping Function to the InputStream of this JSON value.
    Consumption methods should be called exactly once as the underlying JSON value is typically released after consumption.
    
    Type Parameters:
    
    T - return type.
    
    Parameters:
    
    mappingFunction - mapping function that gets applied to the InputStream representation of this JSON value.
    
    Returns:
    
    the mapped value. Can be null.
  - asArray
```
public abstract byte[] asArray()
```
    Returns the value as byte[].
    Consumption methods should be called exactly once as the underlying JSON value is typically released after consumption.
    
    Returns:
    
    the contents of the JSON value as byte[].
  - asString
```
public abstract String asString()
```
    Returns the value as String.
    Consumption methods should be called exactly once as the underlying JSON value is typically released after consumption.
    
    Returns:
    
    the contents of the JSON value as String.

Class Json

Method Summary

Methods inherited from class java.lang.Object

Method Detail

of

of

of

of

of

mapBuffer

mapByteBuf

mapInputStream

asArray

asString