oracle.javatools.parser.plsql.old

Class PlsqlTreeGenerator

java.lang.Object

oracle.javatools.parser.plsql.old.PlsqlTreeGenerator

All Implemented Interfaces:

PlsqlSyntaxCodes, SyntaxListener

public class PlsqlTreeGenerator
extends java.lang.Object
implements PlsqlSyntaxCodes, SyntaxListener

The TreeGenerator is the glue between the SyntaxRecognizer and the SymbolFactory. When a syntax token indicates a new element, we create a new parse tree node. When a syntax token indicates the close of an element, we finish off the corresponding parse tree node. For details and specifics of the underlying parse data structure, see the JavaSymbolFactory.

The idea is to generate the entire tree by maintaining a single stack. Start by pushing a root node onto the stack and generate the rest of the tree in an in-order depth-first fashion.

See Also:

JavaSyntaxRecognizer, JavaSymbolFactory, PlsqlSymbol

Field Summary

Fields inherited from interface oracle.javatools.parser.plsql.old.PlsqlSyntaxCodes

SYNTAX_ARGUMENTS, SYNTAX_BLOCK, SYNTAX_BLOCK_STATEMENT, SYNTAX_CURSOR_DECL, SYNTAX_DATATYPE, SYNTAX_ELSE_CLAUSE, SYNTAX_ELSIF_CLAUSE, SYNTAX_EXCEPTION_HANDLER, SYNTAX_EXP_INNER, SYNTAX_EXP_MIDDLE, SYNTAX_EXP_OUTER, SYNTAX_EXP_STATEMENT, SYNTAX_EXPRESSION, SYNTAX_FOR_LOOP, SYNTAX_FUNCTION, SYNTAX_IF_STATEMENT, SYNTAX_INFIX_OPERATOR, SYNTAX_INSERT_EXPRESSION, SYNTAX_ITEM_DECL, SYNTAX_LABEL, SYNTAX_LITERAL, SYNTAX_LOOP, SYNTAX_LOOP_STATEMENT, SYNTAX_OBJECT_TYPE, SYNTAX_PACKAGE, SYNTAX_PARAMETER, SYNTAX_PARAMETER_LIST, SYNTAX_PAREN_EXPRESSION, SYNTAX_PLSQL_ROOT, SYNTAX_POSTFIX_OPERATOR, SYNTAX_PREFIX_OPERATOR, SYNTAX_PRIMARY, SYNTAX_PRIMARY_NAME, SYNTAX_PROCEDURE, SYNTAX_SCHEMA_NAME, SYNTAX_SELECT_EXPRESSION, SYNTAX_SIMPLE_NAME, SYNTAX_SPECIAL_OPERATOR, SYNTAX_SQL_EXPRESSION, SYNTAX_STATEMENT, SYNTAX_TYPE_CURSOR_DECL, SYNTAX_TYPE_DECL, SYNTAX_TYPE_RECORD_DECL, SYNTAX_TYPE_TABLE_DECL, SYNTAX_TYPE_VARRAY_DECL, SYNTAX_UNPARSED_EXPRESSION, SYNTAX_UNPARSED_LOOP, SYNTAX_UNPARSED_STMT, SYNTAX_VARIABLE_DECL, SYNTAX_WHILE_LOOP

Constructor Summary

Constructors

Constructor and Description
PlsqlTreeGenerator()

Method Summary

Methods

Modifier and Type	Method and Description
CommonRoot	generate() Entry-point into the generate mechanism.
PlsqlSyntaxRecognizer	getRecognizer()
void	initialize(PlsqlSyntaxRecognizer t)
void	receive(SyntaxToken token, int syntaxCode) Receive one token from the syntax stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

PlsqlTreeGenerator

public PlsqlTreeGenerator()

Method Detail

initialize

public void initialize(PlsqlSyntaxRecognizer t)

getRecognizer

public PlsqlSyntaxRecognizer getRecognizer()

generate

public CommonRoot generate()

Entry-point into the generate mechanism. Enter one token into the syntax stream and begin generation.

receive

public void receive(SyntaxToken token,
           int syntaxCode)

Receive one token from the syntax stream.

Specified by:

receive in interface SyntaxListener