Package org.apache.olingo.server.core.debug

Class ExpressionJsonVisitor

java.lang.Object

org.apache.olingo.server.core.debug.ExpressionJsonVisitor

All Implemented Interfaces:

ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

public class ExpressionJsonVisitor
extends Object
implements ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

A custom expression visitor which converts the tree into a JsonNode tree.

Constructor Summary

Constructors

Constructor	Description
ExpressionJsonVisitor()

Method Summary

Modifier and Type	Method	Description
com.fasterxml.jackson.databind.JsonNode	visitAlias(String aliasName)	Called for each traversed Alias expression
com.fasterxml.jackson.databind.JsonNode	visitBinaryOperator(BinaryOperatorKind operator, com.fasterxml.jackson.databind.JsonNode left, com.fasterxml.jackson.databind.JsonNode right)	Called for each traversed Binary expression
com.fasterxml.jackson.databind.JsonNode	visitBinaryOperator(BinaryOperatorKind operator, com.fasterxml.jackson.databind.JsonNode left, List<com.fasterxml.jackson.databind.JsonNode> right)	Called for each traversed Binary expression
com.fasterxml.jackson.databind.JsonNode	visitEnum(EdmEnumType type, List<String> enumValues)	Called for each traversed Enumeration expression
com.fasterxml.jackson.databind.JsonNode	visitLambdaExpression(String lambdaFunction, String lambdaVariable, Expression expression)	Called for each traversed lambda expression
com.fasterxml.jackson.databind.JsonNode	visitLambdaReference(String variableName)	Called for each traversed LambdaRef
com.fasterxml.jackson.databind.JsonNode	visitLiteral(Literal literal)	Called for each traversed Literal expression
com.fasterxml.jackson.databind.JsonNode	visitMember(Member member)	Called for each traversed Member expression
com.fasterxml.jackson.databind.JsonNode	visitMethodCall(MethodKind methodCall, List<com.fasterxml.jackson.databind.JsonNode> parameters)	Called for each traversed Method expression
com.fasterxml.jackson.databind.JsonNode	visitTypeLiteral(EdmType type)	Called for each traversed TypeLiteral expression
com.fasterxml.jackson.databind.JsonNode	visitUnaryOperator(UnaryOperatorKind operator, com.fasterxml.jackson.databind.JsonNode operand)	Called for each traversed Unary expression

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.olingo.server.api.uri.queryoption.expression.ExpressionVisitor

visitComputeAggregate

Constructor Details

ExpressionJsonVisitor

public ExpressionJsonVisitor()

Method Details

visitBinaryOperator

public com.fasterxml.jackson.databind.JsonNode visitBinaryOperator(BinaryOperatorKind operator,
 com.fasterxml.jackson.databind.JsonNode left,
 com.fasterxml.jackson.databind.JsonNode right)
                                                            throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Binary expression

Specified by:

visitBinaryOperator in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

operator - Operator kind

left - Application return value of left sub tree

right - Application return value of right sub tree

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitUnaryOperator

public com.fasterxml.jackson.databind.JsonNode visitUnaryOperator(UnaryOperatorKind operator,
 com.fasterxml.jackson.databind.JsonNode operand)
                                                           throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Unary expression

Specified by:

visitUnaryOperator in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

operator - Operator kind

operand - return value of sub tree

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitMethodCall

public com.fasterxml.jackson.databind.JsonNode visitMethodCall(MethodKind methodCall,
 List<com.fasterxml.jackson.databind.JsonNode> parameters)
                                                        throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Method expression

Specified by:

visitMethodCall in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

methodCall - Method

parameters - List of application return values created by visiting each method parameter

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitLambdaExpression

public com.fasterxml.jackson.databind.JsonNode visitLambdaExpression(String lambdaFunction,
 String lambdaVariable,
 Expression expression)
                                                              throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed lambda expression

Specified by:

visitLambdaExpression in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

lambdaFunction - "ALL" or "ANY"

lambdaVariable - Variable name used lambda variable

expression - Lambda expression

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitLiteral

public com.fasterxml.jackson.databind.JsonNode visitLiteral(Literal literal)
                                                     throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Literal expression

Specified by:

visitLiteral in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

literal - Literal

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitMember

public com.fasterxml.jackson.databind.JsonNode visitMember(Member member)
                                                    throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Member expression

Specified by:

visitMember in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

member - UriInfoResource object describing the whole path used to access an data value (this includes for example the usage of $root and $it inside the URI)

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitAlias

public com.fasterxml.jackson.databind.JsonNode visitAlias(String aliasName)
                                                   throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Alias expression

Specified by:

visitAlias in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

aliasName - Name of the alias

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitTypeLiteral

public com.fasterxml.jackson.databind.JsonNode visitTypeLiteral(EdmType type)
                                                         throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed TypeLiteral expression

Specified by:

visitTypeLiteral in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

type - EdmType

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitLambdaReference

public com.fasterxml.jackson.databind.JsonNode visitLambdaReference(String variableName)
                                                             throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed LambdaRef

Specified by:

visitLambdaReference in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

variableName - Name of the used lambda variable

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitEnum

public com.fasterxml.jackson.databind.JsonNode visitEnum(EdmEnumType type,
 List<String> enumValues)
                                                  throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Enumeration expression

Specified by:

visitEnum in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

type - Type used in the URI before the enumeration values

enumValues - List of enumeration values

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application

visitBinaryOperator

public com.fasterxml.jackson.databind.JsonNode visitBinaryOperator(BinaryOperatorKind operator,
 com.fasterxml.jackson.databind.JsonNode left,
 List<com.fasterxml.jackson.databind.JsonNode> right)
                                                            throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: ExpressionVisitor

Called for each traversed Binary expression

Specified by:

visitBinaryOperator in interface ExpressionVisitor<com.fasterxml.jackson.databind.JsonNode>

Parameters:

operator - Operator kind

left - Application return value of left sub tree

right - Application return value of right sub tree

Returns:

Application return value of type T

Throws:

ExpressionVisitException - Thrown if an exception while traversing occurred

ODataApplicationException - Thrown by the application