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  * Copyright (C) 2012 FoxLabs
  * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.foxlabs.validation.constraint;
This class provides Constraint implementation for custom constraints.

Fox Mulder
public final class CustomConstraint<V> implements Constraint<V> {
Composite constraint.
    private final Constraint<V> constraint;
Constructs a new CustomConstraint with the specified composite constraint.

constraint Composite constraint.
    CustomConstraint(Constraint<V> constraint) {
        this. = constraint;
The default behavior of this method is to return Constraint.getType() on the composite constraint.

    public Class<?> getType() {
        return .getType();
    public String getMessageTemplate(ValidationContext<?> context) {
        return .getMessageTemplate(context);
    public boolean appendMessageArguments(ValidationContext<?> contextMap<StringObjectarguments) {
        return .appendMessageArguments(contextarguments);
    public <T> V validate(V valueValidationContext<T> context) {
        try {
            return .validate(valuecontext);
        } catch (ConstraintViolationException e) {
            throw new ConstraintViolationException(thiscontextvalue);
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