Package org.ehrbase.aql.compiler

Class QueryCompilerPass2

java.lang.Object

org.ehrbase.aql.parser.AqlBaseListener

org.ehrbase.aql.compiler.QueryCompilerPass2

All Implemented Interfaces:

org.antlr.v4.runtime.tree.ParseTreeListener, AqlListener

public class QueryCompilerPass2
extends AqlBaseListener

AQL compilation pass 2

This pass uses the results of pass 1 to:

• resolve AQL paths from symbols, example: c/items[at0002]/items[at0001]/value/value/magnitude
• create the list of variables used in SELECT
• create the list of ORDER BY expression parts
• set the TOP clause if specified

Created by christian on 4/1/2016.

Constructor Summary

Constructors

Constructor	Description
QueryCompilerPass2()

Method Summary

Modifier and Type	Method	Description
void	exitFunction(AqlParser.FunctionContext functionContext)	Exit a parse tree produced by AqlParser.function().
void	exitLimit(AqlParser.LimitContext ctx)	Exit a parse tree produced by AqlParser.limit().
void	exitObjectPath(AqlParser.ObjectPathContext objectPathContext)	Exit a parse tree produced by AqlParser.objectPath().
void	exitOffset(AqlParser.OffsetContext ctx)	Exit a parse tree produced by AqlParser.offset().
void	exitOrderBySeq(AqlParser.OrderBySeqContext context)	Exit a parse tree produced by AqlParser.orderBySeq().
void	exitSelectExpr(AqlParser.SelectExprContext selectExprContext)	Exit a parse tree produced by AqlParser.selectExpr().
void	exitTopExpr(AqlParser.TopExprContext context)	Exit a parse tree produced by AqlParser.topExpr().
List<I_VariableDefinition>	getVariables()

Methods inherited from class org.ehrbase.aql.parser.AqlBaseListener

enterArchetypedClassExpr, enterClassExpr, enterContainExpressionBool, enterContains, enterContainsExpression, enterEveryRule, enterExtension, enterFrom, enterFromEHR, enterFromExpr, enterFromForeignData, enterFunction, enterIdentifiedEquality, enterIdentifiedExpr, enterIdentifiedOperand, enterIdentifiedPath, enterInvokeExpr, enterInvokeOperand, enterJoinPredicate, enterLimit, enterMatchesOperand, enterNodePredicateAnd, enterNodePredicateComparable, enterNodePredicateOr, enterNodePredicateRegEx, enterObjectPath, enterOffset, enterOperand, enterOrderBy, enterOrderByExpr, enterOrderBySeq, enterPathPart, enterPredicate, enterPredicateAnd, enterPredicateEquality, enterPredicateExpr, enterPredicateOperand, enterQuery, enterQueryExpr, enterSelect, enterSelectExpr, enterSimpleClassExpr, enterStandardPredicate, enterStdExpression, enterTopExpr, enterValueListItems, enterVersionClassExpr, enterVersionedClassExpr, enterVersionpredicate, enterVersionpredicateOptions, enterWhere, exitArchetypedClassExpr, exitClassExpr, exitContainExpressionBool, exitContains, exitContainsExpression, exitEveryRule, exitExtension, exitFrom, exitFromEHR, exitFromExpr, exitFromForeignData, exitIdentifiedEquality, exitIdentifiedExpr, exitIdentifiedOperand, exitIdentifiedPath, exitInvokeExpr, exitInvokeOperand, exitJoinPredicate, exitMatchesOperand, exitNodePredicateAnd, exitNodePredicateComparable, exitNodePredicateOr, exitNodePredicateRegEx, exitOperand, exitOrderBy, exitOrderByExpr, exitPathPart, exitPredicate, exitPredicateAnd, exitPredicateEquality, exitPredicateExpr, exitPredicateOperand, exitQuery, exitQueryExpr, exitSelect, exitSimpleClassExpr, exitStandardPredicate, exitStdExpression, exitValueListItems, exitVersionClassExpr, exitVersionedClassExpr, exitVersionpredicate, exitVersionpredicateOptions, exitWhere, visitErrorNode, visitTerminal

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCompilerPass2

public QueryCompilerPass2()

Method Detail

exitObjectPath

public void exitObjectPath(AqlParser.ObjectPathContext objectPathContext)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.objectPath().

The default implementation does nothing.

Specified by:

exitObjectPath in interface AqlListener

Overrides:

exitObjectPath in class AqlBaseListener

Parameters:

objectPathContext - the parse tree

exitSelectExpr

public void exitSelectExpr(AqlParser.SelectExprContext selectExprContext)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.selectExpr().

The default implementation does nothing.

Specified by:

exitSelectExpr in interface AqlListener

Overrides:

exitSelectExpr in class AqlBaseListener

Parameters:

selectExprContext - the parse tree

exitTopExpr

public void exitTopExpr(AqlParser.TopExprContext context)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.topExpr().

The default implementation does nothing.

Specified by:

exitTopExpr in interface AqlListener

Overrides:

exitTopExpr in class AqlBaseListener

Parameters:

context - the parse tree

exitOrderBySeq

public void exitOrderBySeq(AqlParser.OrderBySeqContext context)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.orderBySeq().

The default implementation does nothing.

Specified by:

exitOrderBySeq in interface AqlListener

Overrides:

exitOrderBySeq in class AqlBaseListener

Parameters:

context - the parse tree

exitOffset

public void exitOffset(AqlParser.OffsetContext ctx)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.offset().

The default implementation does nothing.

Specified by:

exitOffset in interface AqlListener

Overrides:

exitOffset in class AqlBaseListener

Parameters:

ctx - the parse tree

exitLimit

public void exitLimit(AqlParser.LimitContext ctx)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.limit().

The default implementation does nothing.

Specified by:

exitLimit in interface AqlListener

Overrides:

exitLimit in class AqlBaseListener

Parameters:

ctx - the parse tree

exitFunction

public void exitFunction(AqlParser.FunctionContext functionContext)

Description copied from class: AqlBaseListener

Exit a parse tree produced by AqlParser.function().

The default implementation does nothing.

Specified by:

exitFunction in interface AqlListener

Overrides:

exitFunction in class AqlBaseListener

Parameters:

functionContext - the parse tree

getVariables

public List<I_VariableDefinition> getVariables()