Examples of org.codehaus.jackson.type.JavaType.containedType()

Class org.codehaus.jackson.type.JavaType

Examples of org.codehaus.jackson.type.JavaType.containedType()

org.codehaus.jackson.type.JavaType.containedType()
Method for accessing definitions of contained ("child") types. @param index Index of contained type to return @return Contained type at index, or null if no such typeexists (no exception thrown) @since 1.5

        TypeFactory tf = TypeFactory.defaultInstance();
        JavaType t = tf.constructType(new TypeReference<Iterator<String>>() { });
        assertEquals(SimpleType.class, t.getClass());
        assertSame(Iterator.class, t.getRawClass());
        assertEquals(1, t.containedTypeCount());
        assertEquals(tf.constructType(String.class), t.containedType(0));
        assertNull(t.containedType(1));
    }


    /**
     * Test for verifying that parametric types can be constructed

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        JavaType t = tf.constructType(new TypeReference<Iterator<String>>() { });
        assertEquals(SimpleType.class, t.getClass());
        assertSame(Iterator.class, t.getRawClass());
        assertEquals(1, t.containedTypeCount());
        assertEquals(tf.constructType(String.class), t.containedType(0));
        assertNull(t.containedType(1));
    }


    /**
     * Test for verifying that parametric types can be constructed
     * programmatically

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        // Then using JavaType
        JavaType t2 = tf.constructParametricType(Map.class, strC, t); // Map<String,ArrayList<String>>
        // should actually produce a MapType
        assertEquals(MapType.class, t2.getClass());
        assertEquals(2, t2.containedTypeCount());
        assertEquals(strC, t2.containedType(0));
        assertEquals(t, t2.containedType(1));
        assertNull(t2.containedType(2));


        // and then custom generic type as well
        JavaType custom = tf.constructParametricType(SingleArgGeneric.class, String.class);

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        JavaType t2 = tf.constructParametricType(Map.class, strC, t); // Map<String,ArrayList<String>>
        // should actually produce a MapType
        assertEquals(MapType.class, t2.getClass());
        assertEquals(2, t2.containedTypeCount());
        assertEquals(strC, t2.containedType(0));
        assertEquals(t, t2.containedType(1));
        assertNull(t2.containedType(2));


        // and then custom generic type as well
        JavaType custom = tf.constructParametricType(SingleArgGeneric.class, String.class);
        assertEquals(SimpleType.class, custom.getClass());

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        // should actually produce a MapType
        assertEquals(MapType.class, t2.getClass());
        assertEquals(2, t2.containedTypeCount());
        assertEquals(strC, t2.containedType(0));
        assertEquals(t, t2.containedType(1));
        assertNull(t2.containedType(2));


        // and then custom generic type as well
        JavaType custom = tf.constructParametricType(SingleArgGeneric.class, String.class);
        assertEquals(SimpleType.class, custom.getClass());
        assertEquals(1, custom.containedTypeCount());

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        // and then custom generic type as well
        JavaType custom = tf.constructParametricType(SingleArgGeneric.class, String.class);
        assertEquals(SimpleType.class, custom.getClass());
        assertEquals(1, custom.containedTypeCount());
        assertEquals(strC, custom.containedType(0));
        assertNull(custom.containedType(1));
        // should also be able to access variable name:
        assertEquals("X", custom.containedTypeName(0));


        // And finally, ensure that we can't create invalid combinations

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        // and then custom generic type as well
        JavaType custom = tf.constructParametricType(SingleArgGeneric.class, String.class);
        assertEquals(SimpleType.class, custom.getClass());
        assertEquals(1, custom.containedTypeCount());
        assertEquals(strC, custom.containedType(0));
        assertNull(custom.containedType(1));
        // should also be able to access variable name:
        assertEquals("X", custom.containedTypeName(0));


        // And finally, ensure that we can't create invalid combinations
        try {

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        if (am.hasAnnotation(ObjectId.class)) {
            JavaType type = deserializationConfig.getTypeFactory().constructType(am.getGenericType());
            if (type.isCollectionLikeType()) {
                return findObjectIdDeserializer(type.containedType(0));
            } else if (type.isMapLikeType()) {
                return findObjectIdDeserializer(type.containedType(1));
            }
        }
        return null;
    }

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                    return null;
                }
            } else {
                dbRefType = type;
            }
            Class<? extends JsonDeserializer> keyDeserializer = introspector.findObjectIdDeserializer(dbRefType.containedType(1));
            return new DBRefDeserializer(dbRefType.containedType(0), dbRefType.containedType(1), ClassUtil.createInstance(keyDeserializer, false));
        }
        return null;
    }

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                }
            } else {
                dbRefType = type;
            }
            Class<? extends JsonDeserializer> keyDeserializer = introspector.findObjectIdDeserializer(dbRefType.containedType(1));
            return new DBRefDeserializer(dbRefType.containedType(0), dbRefType.containedType(1), ClassUtil.createInstance(keyDeserializer, false));
        }
        return null;
    }


    @Override

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