JsonTreeReader

java.lang.Object
- com.google.gson.stream.JsonReader
- - com.google.gson.internal.bind.JsonTreeReader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable
```
public final class JsonTreeReader
extends JsonReader
```
This reader walks the elements of a JsonElement as if it was coming from a character stream.

Field Summary

Fields
Modifier and Type	Field and Description
`private int[]`	`pathIndices`
`private java.lang.String[]`	`pathNames`
`private static java.lang.Object`	`SENTINEL_CLOSED`
`private java.lang.Object[]`	`stack`
`private int`	`stackSize`
`private static java.io.Reader`	`UNREADABLE_READER`

Constructor Summary

Constructors
Constructor and Description

JsonTreeReader(JsonElement element)

Constructors
Constructor and Description
`JsonTreeReader(JsonElement element)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`beginArray()` Consumes the next token from the JSON stream and asserts that it is the beginning of a new array.
`void`	`beginObject()` Consumes the next token from the JSON stream and asserts that it is the beginning of a new object.
`void`	`close()` Closes this JSON reader and the underlying `Reader`.
`void`	`endArray()` Consumes the next token from the JSON stream and asserts that it is the end of the current array.
`void`	`endObject()` Consumes the next token from the JSON stream and asserts that it is the end of the current object.
`private void`	`expect(JsonToken expected)`
`java.lang.String`	`getPath()` Returns a JsonPath to the current location in the JSON value.
`boolean`	`hasNext()` Returns true if the current array or object has another element.
`private java.lang.String`	`locationString()`
`boolean`	`nextBoolean()` Returns the `boolean` value of the next token, consuming it.
`double`	`nextDouble()` Returns the `double` value of the next token, consuming it.
`int`	`nextInt()` Returns the `int` value of the next token, consuming it.
`long`	`nextLong()` Returns the `long` value of the next token, consuming it.
`java.lang.String`	`nextName()` Returns the next token, a `property name`, and consumes it.
`void`	`nextNull()` Consumes the next token from the JSON stream and asserts that it is a literal null.
`java.lang.String`	`nextString()` Returns the `string` value of the next token, consuming it.
`JsonToken`	`peek()` Returns the type of the next token without consuming it.
`private java.lang.Object`	`peekStack()`
`private java.lang.Object`	`popStack()`
`void`	`promoteNameToValue()`
`private void`	`push(java.lang.Object newTop)`
`void`	`skipValue()` Skips the next value recursively.
`java.lang.String`	`toString()`

Methods inherited from class com.google.gson.stream.JsonReader
isLenient, setLenient

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

- Field Detail
  - UNREADABLE_READER
```
private static final java.io.Reader UNREADABLE_READER
```
  - SENTINEL_CLOSED
```
private static final java.lang.Object SENTINEL_CLOSED
```
  - stack
```
private java.lang.Object[] stack
```
  - stackSize
```
private int stackSize
```
  - pathNames
```
private java.lang.String[] pathNames
```
  - pathIndices
```
private int[] pathIndices
```
- Constructor Detail
  - JsonTreeReader
```
public JsonTreeReader(JsonElement element)
```
- Method Detail
  - beginArray
```
public void beginArray()
                throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Consumes the next token from the JSON stream and asserts that it is the beginning of a new array.
    
    Overrides:
    
    beginArray in class JsonReader
    
    Throws:
    
    java.io.IOException
  - endArray
```
public void endArray()
              throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Consumes the next token from the JSON stream and asserts that it is the end of the current array.
    
    Overrides:
    
    endArray in class JsonReader
    
    Throws:
    
    java.io.IOException
  - beginObject
```
public void beginObject()
                 throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Consumes the next token from the JSON stream and asserts that it is the beginning of a new object.
    
    Overrides:
    
    beginObject in class JsonReader
    
    Throws:
    
    java.io.IOException
  - endObject
```
public void endObject()
               throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Consumes the next token from the JSON stream and asserts that it is the end of the current object.
    
    Overrides:
    
    endObject in class JsonReader
    
    Throws:
    
    java.io.IOException
  - hasNext
```
public boolean hasNext()
                throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns true if the current array or object has another element.
    
    Overrides:
    
    hasNext in class JsonReader
    
    Throws:
    
    java.io.IOException
  - peek
```
public JsonToken peek()
               throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the type of the next token without consuming it.
    
    Overrides:
    
    peek in class JsonReader
    
    Throws:
    
    java.io.IOException
  - peekStack
```
private java.lang.Object peekStack()
```
  - popStack
```
private java.lang.Object popStack()
```
  - expect
```
private void expect(JsonToken expected)
             throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - nextName
```
public java.lang.String nextName()
                          throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the next token, a property name, and consumes it.
    
    Overrides:
    
    nextName in class JsonReader
    
    Throws:
    
    java.io.IOException - if the next token in the stream is not a property name.
  - nextString
```
public java.lang.String nextString()
                            throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the string value of the next token, consuming it. If the next token is a number, this method will return its string form.
    
    Overrides:
    
    nextString in class JsonReader
    
    Throws:
    
    java.io.IOException
  - nextBoolean
```
public boolean nextBoolean()
                    throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the boolean value of the next token, consuming it.
    
    Overrides:
    
    nextBoolean in class JsonReader
    
    Throws:
    
    java.io.IOException
  - nextNull
```
public void nextNull()
              throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Consumes the next token from the JSON stream and asserts that it is a literal null.
    
    Overrides:
    
    nextNull in class JsonReader
    
    Throws:
    
    java.io.IOException
  - nextDouble
```
public double nextDouble()
                  throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the double value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a double using Double.parseDouble(String).
    
    Overrides:
    
    nextDouble in class JsonReader
    
    Throws:
    
    java.io.IOException
  - nextLong
```
public long nextLong()
              throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the long value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as a long. If the next token's numeric value cannot be exactly represented by a Java long, this method throws.
    
    Overrides:
    
    nextLong in class JsonReader
    
    Throws:
    
    java.io.IOException
  - nextInt
```
public int nextInt()
            throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Returns the int value of the next token, consuming it. If the next token is a string, this method will attempt to parse it as an int. If the next token's numeric value cannot be exactly represented by a Java int, this method throws.
    
    Overrides:
    
    nextInt in class JsonReader
    
    Throws:
    
    java.io.IOException
  - close
```
public void close()
           throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Closes this JSON reader and the underlying Reader.
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Overrides:
    
    close in class JsonReader
    
    Throws:
    
    java.io.IOException
  - skipValue
```
public void skipValue()
               throws java.io.IOException
```
    Description copied from class: JsonReader
    
    Skips the next value recursively. If it is an object or array, all nested elements are skipped. This method is intended for use when the JSON token stream contains unrecognized or unhandled values.
    
    Overrides:
    
    skipValue in class JsonReader
    
    Throws:
    
    java.io.IOException
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class JsonReader
  - promoteNameToValue
```
public void promoteNameToValue()
                        throws java.io.IOException
```
    Throws:
    
    java.io.IOException
  - push
```
private void push(java.lang.Object newTop)
```
  - getPath
```
public java.lang.String getPath()
```
    Description copied from class: JsonReader
    
    Returns a JsonPath to the current location in the JSON value.
    
    Overrides:
    
    getPath in class JsonReader
  - locationString
```
private java.lang.String locationString()
```

Class JsonTreeReader

Field Summary

Constructor Summary

Method Summary

Methods inherited from class com.google.gson.stream.JsonReader

Methods inherited from class java.lang.Object

Field Detail

UNREADABLE_READER

SENTINEL_CLOSED

stack

stackSize

pathNames

pathIndices

Constructor Detail

JsonTreeReader

Method Detail

beginArray

endArray

beginObject

endObject

hasNext

peek

peekStack

popStack

expect

nextName

nextString

nextBoolean

nextNull

nextDouble

nextLong

nextInt

close

skipValue

toString

promoteNameToValue

push

getPath

locationString