Package org.apache.olingo.server.core.uri.queryoption.expression

Class MemberImpl

java.lang.Object

org.apache.olingo.server.core.uri.queryoption.expression.MemberImpl

All Implemented Interfaces:

Expression, Member, VisitableExpression

public class MemberImpl
extends Object
implements Member

Constructor Summary

Constructors

Constructor	Description
MemberImpl(UriInfoResource path, EdmType startTypeFilter)

Method Summary

Modifier and Type	Method	Description
<T> T	accept(ExpressionVisitor<T> visitor)	Method VisitableExpression.accept(ExpressionVisitor) is called when traversing the expression tree.
UriInfoResource	getResourcePath()
EdmType	getStartTypeFilter()
EdmType	getType()
boolean	isCollection()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

MemberImpl

public MemberImpl(UriInfoResource path,
 EdmType startTypeFilter)

Method Details

getResourcePath

public UriInfoResource getResourcePath()

Specified by:

getResourcePath in interface Member

Returns:

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)

getStartTypeFilter

public EdmType getStartTypeFilter()

Specified by:

getStartTypeFilter in interface Member

Returns:

The used type filter ahead of the path

accept

public <T> T accept(ExpressionVisitor<T> visitor)
             throws ExpressionVisitException,
ODataApplicationException

Description copied from interface: VisitableExpression

Method VisitableExpression.accept(ExpressionVisitor) is called when traversing the expression tree. This method is invoked on each expression used as node in an expression tree. The implementations should behave as follows:

Call accept on all sub nodes and store the returned Objects which are of the generic type T

Call the appropriate method on the ExpressionVisitor instance and provide the stored return objects to that instance

Return the object which should be passed to the processing algorithm of the parent expression node

Specified by:

accept in interface VisitableExpression

Parameters:

visitor - Visitor object (implementing ExpressionVisitor) whose methods are called during traversing a expression node of the expression tree.

Returns:

Object of type T which should be passed to the processing algorithm of the parent expression node

Throws:

ExpressionVisitException - Exception occurred in the OData library while traversing the tree

ODataApplicationException - Exception thrown by the application who implemented the visitor

getType

public EdmType getType()

Specified by:

getType in interface Member

Returns:

Type

isCollection

public boolean isCollection()

Specified by:

isCollection in interface Member

Returns:

true if the accessed data is a collection, otherwise false

toString

public String toString()

Overrides:

toString in class Object