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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| DynamicSelectUnion.java | 0% | 0% | 0% | 0% |
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/*
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* Joey and its relative products are published under the terms
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* of the Apache Software License.
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*/
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package org.asyrinx.brownie.core.sql;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.List;
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import org.asyrinx.brownie.core.lang.StringUtils;
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/**
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* DynamicSQLを用いて動的にSQLを生成する場合に、 unionやunion allを使用する場合には、このクラスを使用してください。
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*
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* @author Akima
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*/
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public class DynamicSelectUnion { |
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/**
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*
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*/
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public DynamicSelectUnion() {
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super();
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} |
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/** 連結されるDynamicSQLを保持するリスト */
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final List sqlList = new ArrayList();
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/** 結合の種類:union */
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public static final String TYPE_UNION = "union"; |
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/** 結合の種類:union all */
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public static final String TYPE_UNION_ALL = "union all"; |
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/**
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* 結合の種類 <br>
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* TYPE_UNIONか、TYPE_UNION_ALLを使用する。
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*/
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private String type = TYPE_UNION_ALL;
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/**
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* 結合されたSQLをバッファに出力する。
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*
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* @param dest
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* 出力先バッファ
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*/
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public void build(StringBuffer dest) { |
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dest.append(StringUtils.join(sqlList.iterator(), " \n" + type + "\n ")); |
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if ((orderByFields != null) && (!orderByFields.isEmpty())) { |
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dest.append("\n order by \n");
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dest.append(StringUtils.join(orderByFields.iterator(), ", "));
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} |
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} |
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/**
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* 結合されたSQLをバッファに出力する。
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*
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* @param dest
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* 出力先バッファ
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*/
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public String build() {
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final StringBuffer result = new StringBuffer();
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build(result); |
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return result.toString();
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} |
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/**
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* @return @see java.lang.Object#toString()
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*/
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public String toString() {
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return this.build(); |
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} |
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/** order by句で順序を示すフィールド名を保持するリスト */
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private final List orderByFields = new ArrayList(); |
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/**
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* order by句のフィールドを追加します。
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*
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* @param field
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*/
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public void addOrderBy(String field) { |
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orderByFields.add(field); |
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} |
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/**
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* order by句のフィールドのListを返します。
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*
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* @return List
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*/
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public List getOrderByFields() {
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return orderByFields;
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} |
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/**
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* DynamicSQLを追加します。 <br>
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* 追加時に追加されるDynamicSQLのorder by句はクリアされます。ご注意ください。
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*
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* @param sql
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* @return
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*/
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public boolean add(DynamicSelect sql) { |
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if (sql == null) |
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return false; |
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//sql.getOrderByFields().clear();
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return sqlList.add(sql);
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} |
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/**
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*
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*/
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public void clear() { |
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sqlList.clear(); |
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} |
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/**
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* @param sql
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* @return
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*/
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public boolean contains(DynamicSelect sql) { |
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return sqlList.contains(sql);
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} |
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/**
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* @param index
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* @return
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*/
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public DynamicSelect get(int index) { |
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return (DynamicSelect) sqlList.get(index);
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} |
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/**
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* @param sql
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* @return
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*/
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public int indexOf(DynamicSelect sql) { |
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return sqlList.indexOf(sql);
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} |
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/**
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* @return
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*/
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public boolean isEmpty() { |
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return sqlList.isEmpty();
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} |
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/**
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* @return
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*/
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public Iterator iterator() {
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return sqlList.iterator();
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} |
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/**
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* @param index
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* @return
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*/
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public DynamicSelect remove(int index) { |
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return (DynamicSelect) sqlList.remove(index);
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} |
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/**
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* @param sql
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* @return
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*/
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public boolean remove(DynamicSelect sql) { |
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return sqlList.remove(sql);
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} |
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/**
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* @return
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*/
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public int size() { |
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return sqlList.size();
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} |
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/**
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* @return
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*/
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public String getType() {
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return type;
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} |
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/**
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* @param string
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*/
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public void setType(String string) { |
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type = string; |
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} |
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} |
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