Fold the given expression using the provided folder. @param folder is the folder that will be used. @param expression is the node to fold.

Pattern match the passed Expression but stops at Literal(s). This reduce the boilerplate to write a Visitor that is only interested in Expressions. @p

Walk a supposed Cypher AST, but where the object might not be an ASTNode such as a list of ASTNode or an <pre>Option<ASTNode></pre> @param visitor is

Parse the cypher and returns the AST representation. @param cypher is the string to parse. @return Returns the AST.

@return the types

.forEach(rethrowConsumer(name -> System.out.println(Class.forName(name))));

Attempt to convert this expression into an equivalent SQL string. This will mostly works if correct passes have been ran before hand. This can fail fo

@return the types

@return the attributeMap

Finds the Abstraction Edges for a given types. @param types @return

@return the abstractionLevel

Returns an abstract edge or node. @return matchedGtopAbstractionEntitities

The path to return. @return the path

Return the list of variables used by that clause. @param clauseId is the clause id. @return Returns the list of variables.

Attempt to convert this sql tree into an equivalent SQL string. This will mostly work for the same reason as explained in {@link Expr}

Create the SQL tree from the Cypher AST and the analysis result from previous passes. @param varDependencies is the list of variables and their intera

@return the destinationTableName

@return the implementationLevel

@return the sourceTableName

This pass find restriction in patterns and move them in WHERE clause where they will be rendered appropriately. @param sqltree is the root of the SQL

Return the list of variables reachable by that clause. @param clauseId is the clause id. @return Returns the list of variables.

Return the list of variables used by that clause and the one that are indirectly used. A simple example is this one: Cypher: ClauseI

Give a name to each sub query. @param sqltree is the root of the SQL tree.

On build the query tree running the VarDependencies pass and the SelectTreeBuilder pass. @param cypher is the cypher to parse. @return Returns the SQL

@return the abstraction nodes

@return the attributes

@return the destinationType

@return the sourceType

@return the tableName

@return the hintAvailable

Finds an abstract node by types. @param types @return

@return the variable

Convert the provided Cypher into SQL. @param gTopInterface gtop implementation. @param cypher is the cypher to convert. @return Returns a SQL tree.

@return the edges

@return the sourceTableColumn

Parse the provided Cypher string and converts it into an AST. @param cypher is the cypher to parse. @return Returns the generated AST.

Generates traversal dependent hash code. It provides different values for routes like (:Person)--(:Car) and (:Car)--(:Person) @param route @return

@return the destinationTableColumn

Get the map of hints for this path. @return the map of hints

@return the joinTableSourceColumn

Returns the source for a particular variable @param var is the variable. @return Returns the source if there's any.

This clone performs a shallow copy of the original select, thus preserving all original references. This means you might do further adjustements to po

@return the allPossibleroutes

@return the joinTableDestinationColumn

@return the joinTableName

@return the paths

Returns the expressions that the RETURN is made of. @return Returns a list of {@link Expr}.

@return the directed

Return the type of this variable. @return Returns the type of this variable

Traverse the provided limited Cypher AST. We look for all variables uses and collect them. @param expression is the AST to traverse.

Compute all FROM items. This pass put directly all the computed FromItem on the SimpleSelect themselves. In order to get the JOIN you need to have a

Returns the list of all variables. No variables exists beyond those ones. This method only purpose is for testing. Some tests might want to verify pro

Return destination node types for a given edge. @param edge edge to lookup @return list node types that this edge directs to

@return the equivalentMaterializedGtop

@return the graphMetadata

@return the edges

@return the implementationLevel

@return the implementation nodes

Return the list of relationships involved in that clause. @param clauseId is the clause id. @return Returns the list of relationships.

Return source node types for a given edge. @param edge edge to lookup @return set of two nodes for this edge

@return the traversalHops