Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.gst.portfolio.note.domain; import java.util.LinkedHashMap; import java.util.Map; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.JoinColumn; import javax.persistence.ManyToOne; import javax.persistence.Table; import org.apache.commons.lang.StringUtils; import com.gst.infrastructure.core.api.JsonCommand; import com.gst.infrastructure.core.domain.AbstractAuditableCustom; import com.gst.portfolio.client.domain.Client; import com.gst.portfolio.group.domain.Group; import com.gst.portfolio.loanaccount.domain.Loan; import com.gst.portfolio.loanaccount.domain.LoanTransaction; import com.gst.portfolio.savings.domain.SavingsAccount; import com.gst.portfolio.shareaccounts.domain.ShareAccount; import com.gst.useradministration.domain.AppUser; @Entity @Table(name = "m_note") public class Note extends AbstractAuditableCustom<AppUser, Long> { @ManyToOne @JoinColumn(name = "client_id", nullable = true) private Client client; @ManyToOne @JoinColumn(name = "group_id", nullable = true) private Group group; @ManyToOne @JoinColumn(name = "loan_id", nullable = true) private Loan loan; @ManyToOne @JoinColumn(name = "loan_transaction_id", nullable = true) private LoanTransaction loanTransaction; @Column(name = "note", length = 1000) private String note; @Column(name = "note_type_enum") private Integer noteTypeId; @ManyToOne @JoinColumn(name = "savings_account_id", nullable = true) private SavingsAccount savingsAccount; @ManyToOne @JoinColumn(name = "share_account_id", nullable = true) private ShareAccount shareAccount; public static Note clientNoteFromJson(final Client client, final JsonCommand command) { final String note = command.stringValueOfParameterNamed("note"); return new Note(client, note); } public static Note groupNoteFromJson(final Group group, final JsonCommand command) { final String note = command.stringValueOfParameterNamed("note"); return new Note(group, note); } public static Note loanNote(final Loan loan, final String note) { return new Note(loan, note); } public static Note loanTransactionNote(final Loan loan, final LoanTransaction loanTransaction, final String note) { return new Note(loan, loanTransaction, note); } public static Note savingNote(final SavingsAccount account, final String note) { return new Note(account, note); } public static Note shareNote(final ShareAccount account, final String note) { return new Note(account, note); } public Note(final Client client, final String note) { this.client = client; this.note = note; this.noteTypeId = NoteType.CLIENT.getValue(); } private Note(final Group group, final String note) { this.group = group; this.note = note; this.client = null; this.noteTypeId = NoteType.GROUP.getValue(); } private Note(final Loan loan, final String note) { this.loan = loan; this.client = loan.client(); this.note = note; this.noteTypeId = NoteType.LOAN.getValue(); } private Note(final Loan loan, final LoanTransaction loanTransaction, final String note) { this.loan = loan; this.loanTransaction = loanTransaction; this.client = loan.client(); this.note = note; this.noteTypeId = NoteType.LOAN_TRANSACTION.getValue(); } protected Note() { this.client = null; this.group = null; this.loan = null; this.loanTransaction = null; this.note = null; this.noteTypeId = null; } public Note(final SavingsAccount account, final String note) { this.savingsAccount = account; this.client = account.getClient(); this.note = note; this.noteTypeId = NoteType.SAVING_ACCOUNT.getValue(); } public Note(final ShareAccount account, final String note) { this.shareAccount = account; this.client = account.getClient(); this.note = note; this.noteTypeId = NoteType.SHARE_ACCOUNT.getValue(); } public Map<String, Object> update(final JsonCommand command) { final Map<String, Object> actualChanges = new LinkedHashMap<>(7); final String noteParamName = "note"; if (command.isChangeInStringParameterNamed(noteParamName, this.note)) { final String newValue = command.stringValueOfParameterNamed(noteParamName); actualChanges.put(noteParamName, newValue); this.note = StringUtils.defaultIfEmpty(newValue, null); } return actualChanges; } public boolean isNotAgainstClientWithIdOf(final Long clientId) { return !this.client.identifiedBy(clientId); } }