Package org.mvel2.compiler

Examples of org.mvel2.compiler.ExecutableStatement

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                                                             dialect );
        MvelContext mCon = new MvelContext();
        mCon.setContext( initialContext );

        try {
          ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(expr, initialContext);
            Class lastType = stmt.getKnownEgressType();

            //Statics expression may return Class as an egress type
            if ( lastType != null && "java.lang.Class".equals( lastType.getName() ) ) {
                mCon.setStaticFlag( true );
            }
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    Thing thing = new Thing("xxx");
    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("thing", thing);

    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression("with( thing ) { myEnum = MyEnum.FULL_DOCUMENTATION }", pCtx);
    MVEL.executeExpression(stmt, null, vars);
    assertEquals(MyEnum.FULL_DOCUMENTATION, thing.getMyEnum());
  }
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    ParserConfiguration pconf = new ParserConfiguration();
    ParserContext pctx = new ParserContext(pconf);
    pctx.setStrongTyping(true);
    pctx.addInput("a", AGenericTestClass.class);

    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);


    AGenericTestClass a = new AGenericTestClass();
    a.setMap(new HashMap<String, String>());
    a.getMap().put("x", "10");
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    ParserContext pctx = new ParserContext(pconf);
    pctx.setStrongTyping(true);
    pctx.addInput("this", PersonAddresses.class);
    pctx.addImport(Address.class);
    pctx.addImport(PersonAddresses.class);
    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
    PersonAddresses ctx = new PersonAddresses();
    ctx.getAddresses().add(new Address("s1"));
    Boolean result = (Boolean) MVEL.executeExpression(stmt, ctx);
    assertTrue(result);
  }
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    assertEquals(Cheese.class,
            compiler.compile(context).getKnownEgressType());
  }

  public void testEgressTypeCorrect() {
    ExecutableStatement stmt = (ExecutableStatement)
            MVEL.compileExpression("type", ParserContext.create().stronglyTyped()
                    .withInput("this", Cheese.class));

    assertEquals(String.class,
            stmt.getKnownEgressType());
  }
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    ParserContext context = new ParserContext();
    context.setStrongTyping(true);
    context.addInput("this",
            SampleBean.class);
    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression("( map2[ 'yyy' ] )", context);

    SampleBean s = new SampleBean();
    s.getMap2().put("yyy", 1);

    assertEquals(new Integer(1),
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    ParserContext context = new ParserContext();
    context.setStrongTyping(true);
    context.addInput("this",
            EchoContext.class);

    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression("this.echo( 'Mac')", context);
    stmt = (ExecutableStatement) MVEL.compileExpression("echo( 'Mac')", context);

    assertEquals("Mac", MVEL.executeExpression(stmt, new EchoContext()));
  }
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    Map<String, Object> vars = new HashMap<String, Object>();
    vars.put("$type", "pc!!");
    List list = new ArrayList();
    vars.put("l", list);
    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression("for (byte bt:$type.getBytes()) {l.add( bt);}", pCtx);
    MVEL.executeExpression(stmt, null, vars);

    byte[] exp = "pc!!".getBytes();
    //  byte[] res = new byte[list.size()];
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    ParserContext pctx = new ParserContext(pconf);
    pctx.setStrongTyping(true);
    pctx.addInput("total", int.class);
    pctx.addInput("$cheese", Cheese.class);

    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
    assertTrue("Should not contain" + pctx.getVariables(), pctx.getVariables().isEmpty());
  }
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  public void testArrayLength() {
    ParserContext context = new ParserContext();
    context.setStrongTyping(true);
    context.addInput("x",
        String[].class);
    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression("x.length", context);
  }
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