Examples of java.beans.Statement

java.beans.Statement
A Statement object represents a primitive statement in which a single method is applied to a target and a set of arguments - as in "a.setFoo(b)". Note that where this example uses names to denote the target and its argument, a statement object does not require a name space and is constructed with the values themselves. The statement object associates the named method with its environment as a simple set of values: the target and an array of argument values. @since 1.4 @version 1.31 05/23/06 @author Philip Milne

    protected void initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) {
      java.util.Collection oldO = (java.util.Collection) oldInstance;
      java.util.Collection newO = (java.util.Collection) newInstance;


      if (newO.size() != 0) {
        out.writeStatement(new Statement(oldInstance, "clear", new Object[] {}));
      }
      for (Iterator i = oldO.iterator(); i.hasNext();) {
        out.writeStatement(new Statement(oldInstance, "add", new Object[] {i.next()}));
      }
    }

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    protected void initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) {
      java.util.Collection oldO = (java.util.Collection) oldInstance;
      java.util.Collection newO = (java.util.Collection) newInstance;


      if (newO.size() != 0) {
        out.writeStatement(new Statement(oldInstance, "clear", new Object[] {}));
      }
      for (Iterator i = oldO.iterator(); i.hasNext();) {
        out.writeStatement(new Statement(oldInstance, "add", new Object[] {i.next()}));
      }
    }

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    protected void initialize(Class<?> type, Object oldInstance, Object newInstance, Encoder out) {
      java.util.Collection oldO = (java.util.Collection) oldInstance;
      java.util.Collection newO = (java.util.Collection) newInstance;


      if (newO.size() != 0) {
        out.writeStatement(new Statement(oldInstance, "clear", new Object[] {}));
      }
      for (Iterator i = oldO.iterator(); i.hasNext();) {
        out.writeStatement(new Statement(oldInstance, "add", new Object[] {i.next()}));
      }
    }

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    @Override
    protected void initialize(Class type, Object oldInstance, Object newInstance, Encoder out) {
      Iterator ite = ((Collection) oldInstance).iterator();
      while (ite.hasNext()) {
        out.writeStatement(new Statement(oldInstance, "add", new Object[] {ite.next()}));
      }
    }

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            this.method = "set" + variable;
        }
        
        protected void setValue(Object target, Object value) {
            //Uses Java Beans API
            Statement statement = new Statement(target, method, new Object[] {value});
            try {
                statement.execute();
            } catch (Exception e) {
                //Should never happen
                throw new RuntimeException("Bean error: " + e.getMessage());
            }
        }

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        }
        
        public void parse(String line, int startpos, Stack stack) throws IOException {
            Boolean b = getBooleanValue(line, startpos);
            //Uses Java Beans API
            Statement statement = new Statement(getContextObject(stack),
                    method, new Object[] {b});
            try {
                statement.execute();
            } catch (Exception e) {
                //Should never happen
                throw new RuntimeException("Bean error: " + e.getMessage());
            }
        }

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        });
    }
    
    public void executeMethod(String methodName, Object whereTheMethodWillBeExecuted) {
        try {
            new Statement(whereTheMethodWillBeExecuted, methodName, new Object[] {}).execute();
        } catch (Exception e) {}
    }

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        });
    }
    
    public void executeMethod(String methodName, Object whereTheMethodWillBeExecuted) {
        try {
            new Statement(whereTheMethodWillBeExecuted, methodName, args).execute();
        } catch (Exception e) {}
    }

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        MockBean4Owner_Target t = new MockBean4Owner_Target();
        MockBean4Owner_Owner o = new MockBean4Owner_Owner();
        t.setV(o);
        enc.setOwner(o);


        enc.writeStatement(new Statement(o, "loading", new Object[] {}));


        assertCodedXML(t, "/xml/MockBean4Owner_SetOwnerWithWriteStatement.xml",
                temp, enc);


    }

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    }
  }
  
  private static void injectServices(Object contributor) {
    if (gatewayServices != null) {
      Statement stmt = null;
      for(String serviceName : gatewayServices.getServiceNames()) {
        
        try {
          // TODO: this is just a temporary injection solution
          // TODO: test for the existence of the setter before attempting it
          // TODO: avoid exception throwing when there is no setter
          stmt = new Statement(contributor, "set" + serviceName, new Object[]{gatewayServices.getService(serviceName)});
          stmt.execute();
        } catch (NoSuchMethodException e) {
          // TODO: eliminate the possibility of this being thrown up front
        } catch (Exception e) {
          // Maybe it makes sense to throw exception
          log.failedToInjectService( serviceName, e );

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