File	Doc	Category	Size	Date	Package
JDOQLParameterDeclarationParser.java	API Doc	Glassfish v2 API	8337	Fri May 04 22:35:06 BST 2007	com.sun.jdo.spi.persistence.support.sqlstore.query.jqlc

JDOQLParameterDeclarationParser

• java.lang.Object

Fields Summary
protected static final ResourceBundle	messages I18N support

Constructors Summary

Methods Summary
public static void	main(java.lang.String[] args) Method main for testing purposes. Parameter args is expected to a an array of parameter declaration String. One parameter declaration may declare multiple parameters according to the JDOQL parameter declaration syntax. Calling java com...jqlc.ParameterDeclarationHelper "int a, String b" will print Parameter types for >int a, String b< int String QueryParser helper = new JDOQLParameterDeclarationParser(); for (int i = 0; i < args.length; i++) { String text = args[i]; System.out.println("Parameter types for >" + text + "<"); for (Iterator types = helper.parameterTypeIterator(text); types.hasNext();) { System.out.println(" " + types.next()); } }
public java.util.Iterator	parameterTypeIterator(java.lang.String text) Returns an iterator over the parameter types of the specified JDOQL parameter declartion. The types are represented by their name, thus the Iterator's next method returns Strings. param text the JDOQL parameter declaration return an iterator over parameter types exception JDOQueryException indicates a parse error return new ParameterTypeIterator(parse(text));
private persistence.antlr.collections.AST	parse(java.lang.String text) Internal method parsing the JDOQL parameter declaration. param text the JDOQL parameter declaration return an AST representing the parameter declarations if (text == null) { return null; } // return value AST paramsAST = null; // error message helper ErrorMsg errorMsg = new ErrorMsg(); // create parser JQLParser parser = JQLC.createStringParser(text, errorMsg); try { // start parsing parser.parseParameters(); // get the AST representation paramsAST = parser.getAST(); } catch (ANTLRException ex) { // handle any exceptions thrown by lexer or parser JQLParser.handleANTLRException(ex, errorMsg); } return paramsAST;