File	Doc	Category	Size	Date	Package
BeanshellGenerator.java	API Doc	JBoss 4.2.1	4080	Fri Jul 13 21:02:28 BST 2007	org.jboss.aspects.dbc.condition.parser

BeanshellGenerator

• java.lang.Object

Fields Summary
Expression	expr
StringBuffer	code
int	indent

Constructors Summary
public BeanshellGenerator(Expression expr) this.expr = expr;

Methods Summary
public java.lang.String	createBeanshellCode() code = new StringBuffer(); //code.append("boolean " + RET_NAME + " = false;\n"); expr.accept(this); return code.toString();
private void	createLoopCode(LoopExpression expr, boolean breakType) String declaration = expr.getDeclaration(); String collection = expr.getCollection(); Expression body = expr.getBody(); indent(); code.append("for (" + declaration + " : " + collection + "){\n"); indent++; if (body instanceof BooleanExpression) { indent(); code.append("if ("); if (!breakType) { code.append("!"); } code.append("("); body.accept(this); code.append(")){\n"); indent++; indent(); code.append("return "+ breakType + ";\n"); indent--; indent(); code.append("}\n"); } else if (body instanceof ImpliesExpression) { body.accept(this); } else { body.accept(this); } indent--; indent(); code.append("}\n"); if (expr.isTopLevel()) { indent(); code.append("return "+ !breakType + ";\n"); }
private void	indent() for (int i = 0 ; i < indent * 2 ; i++) { code.append(" "); }
public void	visit(Expression expr) expr.accept(this);
public void	visit(BooleanExpression expr) if (expr.isTopLevel()) { code.append("return (" + expr.getExpression() + ");\n"); } else { code.append(expr.getExpression()); }
public void	visit(ForAllExpression expr) createLoopCode(expr, false);
public void	visit(ExistsExpression expr) createLoopCode(expr, true);
public void	visit(ImpliesExpression expr) indent(); code.append("if ("); expr.getLhs().accept(this); code.append("){\n"); indent++; indent(); code.append("if(!("); expr.getRhs().accept(this); code.append(")){\n"); indent++; indent(); code.append("return false;\n"); indent--; indent(); code.append("}\n"); indent--; indent(); code.append("}\n"); if (expr.isTopLevel()) { code.append("return true;\n"); }
public void	visit(JavaExpression expr) code.append(expr.getJava()); code.append("\nreturn true;\n");