com.jayway.jsonpath.spi.json

Class AbstractJsonProvider

java.lang.Object

com.jayway.jsonpath.spi.json.AbstractJsonProvider

All Implemented Interfaces:

JsonProvider

Direct Known Subclasses:

GsonJsonProvider, JacksonJsonNodeJsonProvider, JacksonJsonProvider, JettisonProvider, JsonOrgJsonProvider, JsonSmartJsonProvider, TapestryJsonProvider

public abstract class AbstractJsonProvider
extends Object
implements JsonProvider

Field Summary

Fields inherited from interface com.jayway.jsonpath.spi.json.JsonProvider

UNDEFINED

Constructor Summary

Constructors

Constructor and Description
AbstractJsonProvider()

Method Summary

Modifier and Type	Method and Description
Object	getArrayIndex(Object obj, int idx) Extracts a value from an array
Object	getArrayIndex(Object obj, int idx, boolean unwrap) Extracts a value from an array
Object	getMapValue(Object obj, String key) Extracts a value from an map
Collection<String>	getPropertyKeys(Object obj) Returns the keys from the given object
boolean	isArray(Object obj) checks if object is an array
boolean	isMap(Object obj) checks if object is a map (i.e.
int	length(Object obj) Get the length of an array or object
void	removeProperty(Object obj, Object key) Removes a value in an object or array
void	setArrayIndex(Object array, int index, Object newValue) Sets a value in an array.
void	setProperty(Object obj, Object key, Object value) Sets a value in an object
Iterable<? extends Object>	toIterable(Object obj) Converts given array to an Iterable
Object	unwrap(Object obj) Extracts a value from a wrapper object.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jayway.jsonpath.spi.json.JsonProvider

createArray, createMap, parse, parse, toJson

Constructor Detail

AbstractJsonProvider

public AbstractJsonProvider()

Method Detail

isArray

public boolean isArray(Object obj)

checks if object is an array

Specified by:

isArray in interface JsonProvider

Parameters:

obj - object to check

Returns:

true if obj is an array

getArrayIndex

public Object getArrayIndex(Object obj,
                            int idx)

Extracts a value from an array

Specified by:

getArrayIndex in interface JsonProvider

Parameters:

obj - an array

idx - index

Returns:

the entry at the given index

getArrayIndex

public final Object getArrayIndex(Object obj,
                                  int idx,
                                  boolean unwrap)

Description copied from interface: JsonProvider

Extracts a value from an array

Specified by:

getArrayIndex in interface JsonProvider

Parameters:

obj - an array

idx - index

unwrap - should provider specific data type be unwrapped

Returns:

the entry at the given index

setArrayIndex

public void setArrayIndex(Object array,
                          int index,
                          Object newValue)

Description copied from interface: JsonProvider

Sets a value in an array. If the array is too small, the provider is supposed to enlarge it.

Specified by:

setArrayIndex in interface JsonProvider

Parameters:

array - an array

index - index

newValue - the new value

getMapValue

public Object getMapValue(Object obj,
                          String key)

Extracts a value from an map

Specified by:

getMapValue in interface JsonProvider

Parameters:

obj - a map

key - property key

Returns:

the map entry or JsonProvider.UNDEFINED for missing properties

setProperty

public void setProperty(Object obj,
                        Object key,
                        Object value)

Sets a value in an object

Specified by:

setProperty in interface JsonProvider

Parameters:

obj - an object

key - a String key

value - the value to set

removeProperty

public void removeProperty(Object obj,
                           Object key)

Removes a value in an object or array

Specified by:

removeProperty in interface JsonProvider

Parameters:

obj - an array or an object

key - a String key or a numerical index to remove

isMap

public boolean isMap(Object obj)

checks if object is a map (i.e. no array)

Specified by:

isMap in interface JsonProvider

Parameters:

obj - object to check

Returns:

true if the object is a map

getPropertyKeys

public Collection<String> getPropertyKeys(Object obj)

Returns the keys from the given object

Specified by:

getPropertyKeys in interface JsonProvider

Parameters:

obj - an object

Returns:

the keys for an object

length

public int length(Object obj)

Get the length of an array or object

Specified by:

length in interface JsonProvider

Parameters:

obj - an array or an object

Returns:

the number of entries in the array or object

toIterable

public Iterable<? extends Object> toIterable(Object obj)

Converts given array to an Iterable

Specified by:

toIterable in interface JsonProvider

Parameters:

obj - an array

Returns:

an Iterable that iterates over the entries of an array

unwrap

public Object unwrap(Object obj)

Description copied from interface: JsonProvider

Extracts a value from a wrapper object. For JSON providers that to not wrap values, this will usually be the object itself.

Specified by:

unwrap in interface JsonProvider

Parameters:

obj - a value holder object

Returns:

the unwrapped value.