Package org.rumbledb.expressions.flowr

Class Clause

java.lang.Object

org.rumbledb.expressions.Node

org.rumbledb.expressions.flowr.Clause

Direct Known Subclasses:

CountClause, ForClause, GroupByClause, LetClause, OrderByClause, ReturnClause, ReturnStatementClause, WhereClause, WindowClause

public abstract class Clause
extends Node

This is a clause, which is a component of a FLWOR expression. Clauses, unlike expressions, return tuple streams.

Field Summary

Fields

Modifier and Type	Field	Description
protected final FLWOR_CLAUSES	clauseType
protected Clause	nextClause
protected Clause	previousClause
protected StaticContext	staticContext

Fields inherited from class org.rumbledb.expressions.Node

highestExecutionMode, isInSequentialBlock

Constructor Summary

Constructors

Constructor	Description
Clause(FLWOR_CLAUSES clauseType, ExceptionMetadata metadata)

Method Summary

Modifier and Type	Method	Description
void	chainWith(Clause otherClause)
ReturnClause	detachInitialLetClauses()
ReturnStatementClause	detachInitialLetClausesForStatements()
Clause	getFirstClause()
Clause	getLastClause()
RuntimeStaticContext	getStaticContextForRuntime(RumbleConfiguration conf, VisitorConfig visitorConfig)
void	print(StringBuilder buffer, int indent)	Prints the node tree to a string buffer.

Methods inherited from class org.rumbledb.expressions.Node

accept, getChildren, getDescendants, getDescendantsMatching, getHighestExecutionMode, indentIt, isContextDependent, numberOfUnsetExecutionModes, serializeToJSONiq, setIsInSequentialBlock, toString

Methods inherited from class java.lang.Object

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

Field Details

previousClause

protected Clause previousClause

nextClause

protected Clause nextClause

clauseType

protected final FLWOR_CLAUSES clauseType

staticContext

protected StaticContext staticContext

Constructor Details

Clause

public Clause(FLWOR_CLAUSES clauseType,
 ExceptionMetadata metadata)

Method Details

getFirstClause

public Clause getFirstClause()

getLastClause

public Clause getLastClause()

chainWith

public void chainWith(Clause otherClause)

detachInitialLetClauses

public ReturnClause detachInitialLetClauses()

detachInitialLetClausesForStatements

public ReturnStatementClause detachInitialLetClausesForStatements()

print

public void print(StringBuilder buffer,
 int indent)

Description copied from class: Node

Prints the node tree to a string buffer.

Overrides:

print in class Node

Parameters:

buffer - a string buffer to write to

indent - the current level of indentation

getStaticContextForRuntime

public RuntimeStaticContext getStaticContextForRuntime(RumbleConfiguration conf,
 VisitorConfig visitorConfig)