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.internal.services;
16:
17: import java.util.List;
18:
19: import org.apache.tapestry.FieldValidator;
20: import org.apache.tapestry.MarkupWriter;
21: import org.apache.tapestry.ValidationException;
22:
23: /** Aggregates together a number of field validator instances as a single unit. */
24: public final class CompositeFieldValidator implements FieldValidator {
25: private final FieldValidator[] _validators;
26:
27: public CompositeFieldValidator(List<FieldValidator> validators) {
28: _validators = validators.toArray(new FieldValidator[validators
29: .size()]);
30: }
31:
32: @SuppressWarnings("unchecked")
33: public void validate(Object value) throws ValidationException {
34: for (FieldValidator fv : _validators)
35: fv.validate(value);
36: }
37:
38: public void render(MarkupWriter writer) {
39: for (FieldValidator fv : _validators)
40: fv.render(writer);
41: }
42:
43: }
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