diff options
| author | Brian S. O'Neill <bronee@gmail.com> | 2007-03-28 22:00:24 +0000 | 
|---|---|---|
| committer | Brian S. O'Neill <bronee@gmail.com> | 2007-03-28 22:00:24 +0000 | 
| commit | 8809341248c62b15b78d7e6d8e06ab2ec3793c8e (patch) | |
| tree | f39d7353987e025758e0a3abe1ffb49a48e9be9e /src/main/java/com/amazon/carbonado/Automatic.java | |
| parent | 65478f17ada9df04c4c2afa734378bb50ec2bd13 (diff) | |
Merged 1.2-dev to trunk.
Diffstat (limited to 'src/main/java/com/amazon/carbonado/Automatic.java')
| -rw-r--r-- | src/main/java/com/amazon/carbonado/Automatic.java | 53 | 
1 files changed, 53 insertions, 0 deletions
diff --git a/src/main/java/com/amazon/carbonado/Automatic.java b/src/main/java/com/amazon/carbonado/Automatic.java new file mode 100644 index 0000000..96200e1 --- /dev/null +++ b/src/main/java/com/amazon/carbonado/Automatic.java @@ -0,0 +1,53 @@ +/*
 + * Copyright 2006 Amazon Technologies, Inc. or its affiliates.
 + * Amazon, Amazon.com and Carbonado are trademarks or registered trademarks
 + * of Amazon Technologies, Inc. or its affiliates.  All rights reserved.
 + *
 + * Licensed under the Apache License, Version 2.0 (the "License");
 + * you may not use this file except in compliance with the License.
 + * You may obtain a copy of the License at
 + *
 + *     http://www.apache.org/licenses/LICENSE-2.0
 + *
 + * Unless required by applicable law or agreed to in writing, software
 + * distributed under the License is distributed on an "AS IS" BASIS,
 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 + * See the License for the specific language governing permissions and
 + * limitations under the License.
 + */
 +
 +package com.amazon.carbonado;
 +
 +import java.lang.annotation.*;
 +
 +/**
 + * Identifies a {@link Storable} property capable of selecting its own value on
 + * insert. The actual process by which a value is automatically assigned is
 + * repository dependent. In the JDBC repository, the value might come from an
 + * auto-increment column or a database-specific trigger.
 + *
 + * <p>If the underlying repository doesn't automatically supply a value to an
 + * automatic property, no immediate warning is given and instead the property
 + * will be assigned a default value of null or zero. This may cause problems if
 + * the automatic property is a member of a key. Explicitly specifying a value
 + * can sometimes be used to bypass the automatic value altogether.
 + *
 + * <p>Example:<pre>
 + * @PrimaryKey("userInfoID")
 + * public interface UserInfo extends Storable<UserInfo> {
 + *     <b>@Automatic</b>
 + *     long getUserInfoID();
 + *     void setUserInfoID(long id);
 + *
 + *     ...
 + * }
 + * </pre>
 + *
 + * @author Brian S O'Neill
 + * @see Sequence
 + */
 +@Documented
 +@Retention(RetentionPolicy.RUNTIME)
 +@Target(ElementType.METHOD)
 +public @interface Automatic {
 +}
  | 
