Package org.pgcodekeeper.core.parsers.antlr.pg.statement

Class CreateAggregate

java.lang.Object

org.pgcodekeeper.core.parsers.antlr.base.statement.ParserAbstract<PgDatabase>

org.pgcodekeeper.core.parsers.antlr.pg.statement.PgParserAbstract

org.pgcodekeeper.core.parsers.antlr.pg.statement.CreateAggregate

public final class CreateAggregate
extends PgParserAbstract

Parser for PostgreSQL CREATE AGGREGATE statements.

This class handles parsing of aggregate function definitions including state functions, final functions, parallel operations, and various aggregate-specific parameters like state types, initial conditions, and modification functions.

Constructor Summary

Constructors

Constructor	Description
CreateAggregate(SQLParser.Create_aggregate_statementContext ctx, PgDatabase db, ISettings settings)	Constructs a new CreateAggregate parser.

Method Summary

Modifier and Type	Method	Description
static String	getParamFuncSignature(PgAggregate aggregate, PgAggregate.AggFuncs paramName)	Gets the function signature for the given aggregate function parameter.
static String	getSortOperSign(PgAggregate aggr)	Gets the sort operator signature for the aggregate's sort operation.
void	parseObject()	Parses a database object from the current context.

Methods inherited from class org.pgcodekeeper.core.parsers.antlr.pg.statement.PgParserAbstract

getIdentifiers, getIdentifiers, getIdentifiers, getTypeName, parseArguments, parseOperatorSignature, parseSignature, unquoteQuotedString

Methods inherited from class org.pgcodekeeper.core.parsers.antlr.base.statement.ParserAbstract

fillOptionParams, fillOptionParams, getFullCtxText, getFullCtxText, getFullCtxText, getSafe, getSafe, parseArgMode, parseObject

Methods inherited from class java.lang.Object

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

Constructor Details

CreateAggregate

public CreateAggregate(SQLParser.Create_aggregate_statementContext ctx,
 PgDatabase db,
 ISettings settings)

Constructs a new CreateAggregate parser.

Parameters:

ctx - the CREATE AGGREGATE statement context

db - the PostgreSQL database object

settings - the ISettings object

Method Details

parseObject

public void parseObject()

Description copied from class: ParserAbstract

Parses a database object from the current context. Must be implemented by concrete subclasses to handle specific object types.

Specified by:

parseObject in class ParserAbstract<PgDatabase>

getParamFuncSignature

public static String getParamFuncSignature(PgAggregate aggregate,
 PgAggregate.AggFuncs paramName)

Gets the function signature for the given aggregate function parameter.

This method constructs the appropriate function signature based on the aggregate's configuration and the specific function parameter type.

Parameters:

aggregate - the aggregate object containing state and parameter information

paramName - the type of aggregate function parameter

Returns:

the formatted function signature string

getSortOperSign

public static String getSortOperSign(PgAggregate aggr)

Gets the sort operator signature for the aggregate's sort operation.

Parameters:

aggr - the aggregate object

Returns:

the sort operator signature string