com.redhat.lightblue.query

Class RValueExpression

java.lang.Object

com.redhat.lightblue.util.JsonObject

com.redhat.lightblue.query.RValueExpression

All Implemented Interfaces:

Serializable

public class RValueExpression
extends JsonObject

Expression that can be on the right side of an assignment operator. It can be a value, a field reference, or an empty object

   rvalue_expression := value | { $valueof : path } | {}

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RValueExpression.RValueType

Constructor Summary

Constructors

Constructor and Description
RValueExpression() Creates an rvalue expression that is an empty object
RValueExpression(Path p) Creates an rvalue expression that references another field
RValueExpression(RValueExpression.RValueType type) Creates an rvalue expression that is of the specified type
RValueExpression(Value value) Creates an rvalue expression that is a constant value

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj)
static RValueExpression	fromJson(com.fasterxml.jackson.databind.JsonNode node) Parses an rvalue from a json node.
Path	getPath() The referenced field.
RValueExpression.RValueType	getType() The reference type.
Value	getValue() The constant value.
int	hashCode()
com.fasterxml.jackson.databind.JsonNode	toJson()

Methods inherited from class com.redhat.lightblue.util.JsonObject

getFactory, getSourceNode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RValueExpression

public RValueExpression(Value value)

Creates an rvalue expression that is a constant value

RValueExpression

public RValueExpression(Path p)

Creates an rvalue expression that references another field

RValueExpression

public RValueExpression()

Creates an rvalue expression that is an empty object

RValueExpression

public RValueExpression(RValueExpression.RValueType type)

Creates an rvalue expression that is of the specified type

Method Detail

getValue

public Value getValue()

The constant value. Null if this rvalue references a field

getPath

public Path getPath()

The referenced field. Null if this rvalue is a constant

getType

public RValueExpression.RValueType getType()

The reference type.

toJson

public com.fasterxml.jackson.databind.JsonNode toJson()

Specified by:

toJson in class JsonObject

fromJson

public static RValueExpression fromJson(com.fasterxml.jackson.databind.JsonNode node)

Parses an rvalue from a json node.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object