OData4 - Olingo System Query Options ($filter) left object is being passed null
As following this https://olingo.apache.org/doc/odata4/tutorials/sqo_f/tutorial_sqo_f.html documentation.
Get the expression from the query option:
Expression filterExpression = filterOption.getExpression();
Let's assume that the above line of code contains ([ManagerId] eq 1) query.
which means ManagerId is the left Object
eq is the operator
1 is the right object
And under looping over all entities in the collection and calculate the result of the expression for a given entity:
Object visitorResult = filterExpression.accept(expressionVisitor);
So, whenever the accept() method is being called, it invokes the visitBinaryOperator(BinaryOperatorKind operator, Object left, Object right) method of ExpressionVisitor interface implementation. At the moment the visitBinaryOperator() method is invoked the left object is being passed null.
This is the actual root cause, would be great to know the tips and tricks from the folks. Thanks in advance!.
java odata olingo
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
add a comment |
As following this https://olingo.apache.org/doc/odata4/tutorials/sqo_f/tutorial_sqo_f.html documentation.
Get the expression from the query option:
Expression filterExpression = filterOption.getExpression();
Let's assume that the above line of code contains ([ManagerId] eq 1) query.
which means ManagerId is the left Object
eq is the operator
1 is the right object
And under looping over all entities in the collection and calculate the result of the expression for a given entity:
Object visitorResult = filterExpression.accept(expressionVisitor);
So, whenever the accept() method is being called, it invokes the visitBinaryOperator(BinaryOperatorKind operator, Object left, Object right) method of ExpressionVisitor interface implementation. At the moment the visitBinaryOperator() method is invoked the left object is being passed null.
This is the actual root cause, would be great to know the tips and tricks from the folks. Thanks in advance!.
java odata olingo
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
add a comment |
As following this https://olingo.apache.org/doc/odata4/tutorials/sqo_f/tutorial_sqo_f.html documentation.
Get the expression from the query option:
Expression filterExpression = filterOption.getExpression();
Let's assume that the above line of code contains ([ManagerId] eq 1) query.
which means ManagerId is the left Object
eq is the operator
1 is the right object
And under looping over all entities in the collection and calculate the result of the expression for a given entity:
Object visitorResult = filterExpression.accept(expressionVisitor);
So, whenever the accept() method is being called, it invokes the visitBinaryOperator(BinaryOperatorKind operator, Object left, Object right) method of ExpressionVisitor interface implementation. At the moment the visitBinaryOperator() method is invoked the left object is being passed null.
This is the actual root cause, would be great to know the tips and tricks from the folks. Thanks in advance!.
java odata olingo
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
As following this https://olingo.apache.org/doc/odata4/tutorials/sqo_f/tutorial_sqo_f.html documentation.
Get the expression from the query option:
Expression filterExpression = filterOption.getExpression();
Let's assume that the above line of code contains ([ManagerId] eq 1) query.
which means ManagerId is the left Object
eq is the operator
1 is the right object
And under looping over all entities in the collection and calculate the result of the expression for a given entity:
Object visitorResult = filterExpression.accept(expressionVisitor);
So, whenever the accept() method is being called, it invokes the visitBinaryOperator(BinaryOperatorKind operator, Object left, Object right) method of ExpressionVisitor interface implementation. At the moment the visitBinaryOperator() method is invoked the left object is being passed null.
This is the actual root cause, would be great to know the tips and tricks from the folks. Thanks in advance!.
java odata olingo
java odata olingo
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
edited Nov 28 '18 at 13:19
Abdul Gaffar
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
asked Nov 24 '18 at 7:42
Abdul GaffarAbdul Gaffar
1911415
1911415
add a comment |
add a comment |
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