01: // Copyright 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.ioc.annotations;
16:
17: import static java.lang.annotation.ElementType.FIELD;
18: import static java.lang.annotation.ElementType.PARAMETER;
19: import static java.lang.annotation.RetentionPolicy.RUNTIME;
20:
21: import java.lang.annotation.Documented;
22: import java.lang.annotation.Retention;
23: import java.lang.annotation.Target;
24:
25: import org.apache.tapestry.ioc.services.SymbolSource;
26: import org.apache.tapestry.ioc.services.TypeCoercer;
27:
28: /**
29: * Used in conjunction with {@link Inject} to inject a literal value, rather than a service. Symbols
30: * in the value are expanded and the resulting string is coerced to the desired type. For IoC, this
31: * annotation is only applied to parameters (on service builder methods, and on service
32: * constructors); for components, it may also be applied to field.
33: *
34: * @see SymbolSource
35: * @see TypeCoercer
36: */
37: @Target({PARAMETER,FIELD})
38: @Retention(RUNTIME)
39: @Documented
40: public @interface Value {
41: /** The value to be coerced and injected. */
42: String value();
43: }
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