hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
/*
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* Copyright (C) 2019 The Dagger Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package dagger.example.atm;
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import java.math.BigDecimal;
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import javax.inject.Inject;
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/** Maintains the withdrawal amount available within a user session. */
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@PerSession
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final class WithdrawalLimiter {
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private BigDecimal remainingWithdrawalLimit;
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@Inject
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WithdrawalLimiter(@MaximumWithdrawal BigDecimal maximumWithdrawal) {
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this.remainingWithdrawalLimit = maximumWithdrawal;
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}
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void recordDeposit(BigDecimal amount) {
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remainingWithdrawalLimit = remainingWithdrawalLimit.add(amount);
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}
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void recordWithdrawal(BigDecimal amount) {
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remainingWithdrawalLimit = remainingWithdrawalLimit.subtract(amount);
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}
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BigDecimal remainingWithdrawalLimit() {
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return remainingWithdrawalLimit;
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}
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}
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