[jboss-cvs] jboss-seam/src/main/org/jboss/seam/core ...

[Gavin King]

  User: gavin   
  Date: 07/02/14 00:46:29

  Modified:    src/main/org/jboss/seam/core  Expressions.java
  Log:
  introduced meta-model for non-component objects
  
  Revision  Changes    Path
  1.15      +38 -1     jboss-seam/src/main/org/jboss/seam/core/Expressions.java
  
  (In the diff below, changes in quantity of whitespace are not shown.)
  
  Index: Expressions.java
  ===================================================================
  RCS file: /cvsroot/jboss/jboss-seam/src/main/org/jboss/seam/core/Expressions.java,v
  retrieving revision 1.14
  retrieving revision 1.15
  diff -u -b -r1.14 -r1.15
  --- Expressions.java	8 Jan 2007 12:47:59 -0000	1.14
  +++ Expressions.java	14 Feb 2007 05:46:29 -0000	1.15
  @@ -1,4 +1,4 @@
  -//$Id: Expressions.java,v 1.14 2007/01/08 12:47:59 sbryzak2 Exp $
  +//$Id: Expressions.java,v 1.15 2007/02/14 05:46:29 gavin Exp $
   package org.jboss.seam.core;
   
   import static org.jboss.seam.InterceptionType.NEVER;
  @@ -8,7 +8,9 @@
   
   import javax.faces.context.FacesContext;
   
  +import org.hibernate.validator.InvalidValue;
   import org.jboss.seam.Component;
  +import org.jboss.seam.Model;
   import org.jboss.seam.ScopeType;
   import org.jboss.seam.annotations.Install;
   import org.jboss.seam.annotations.Intercept;
  @@ -143,6 +145,41 @@
         
      }
   
  +   /**
  +    * Validate that a value can be assigned to the property
  +    * identified by a value expression.
  +    * 
  +    * @param propertyExpression a value expression
  +    * @param value the value that is to be assigned
  +    * 
  +    * @return the validation failures, as InvalidValues
  +    */
  +   public InvalidValue[] validate(String propertyExpression, Object value)
  +   {
  +      int dot = propertyExpression.lastIndexOf('.');
  +      int bracket = propertyExpression.lastIndexOf('[');
  +      if (dot<=0 && bracket<=0) 
  +      {
  +         return new InvalidValue[0];
  +      }
  +      //String componentName;
  +      String propertyName;
  +      if (dot>bracket)
  +      {
  +         //componentName = propertyExpression.substring(2, dot);
  +         propertyName = propertyExpression.substring( dot+1, propertyExpression.length()-1 );
  +      }
  +      else
  +      {
  +         //componentName = propertyExpression.substring(2, bracket);
  +         propertyName = propertyExpression.substring( bracket+1, propertyExpression.length()-2 );
  +      }
  +      String modelExpression = propertyExpression.substring(0, dot) + '}';
  +      
  +      Object model = createValueBinding(modelExpression).getValue(); //TODO: cache the ValueBinding object!
  +      return Model.forClass( model.getClass() ).getValidator().getPotentialInvalidValues(propertyName, value);
  +   }
  +
      public static interface ValueBinding<T> extends Serializable
      {
          public String getExpressionString();