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Improve Java/SQL ORM

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- Support for custom Java types and conversion for database storage
- Enums are considered custom types
- SQLField.name is now encapsulated as encouraged by OOP principles
- SQLField.name is now auto deducted from the Java field's name in the SQLElement subclass (no more field name in the constructor)
- No need to precise the SQLType of an SQLFKField (auto deducted from the target SQLField's type) via static method SQLFKField.customFK()
- Support of Java type UUID (stored as CHAR(36) in database. No need to use custom getter and setters for SQLElements using UUID fields
This commit is contained in:
Marc Baloup 2017-09-13 01:05:10 +02:00
parent 706ae682ec
commit 0391b7a9a0
13 changed files with 1421 additions and 1358 deletions
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59
src/main/java/fr/pandacube/java/util/orm/ORM.java
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@ -7,13 +7,12 @@ import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import fr.pandacube.java.util.EnumUtil;
import org.javatuples.Pair;
import fr.pandacube.java.util.Log;
import fr.pandacube.java.util.orm.SQLWhereChain.SQLBoolOp;
import fr.pandacube.java.util.orm.SQLWhereComp.SQLComparator;
import org.javatuples.Pair;
/**
* <b>ORM = Object-Relational Mapping</b>
*
@ -99,12 +98,12 @@ public final class ORM {
return (SQLField<E, Integer>) SQLElement.fieldsCache.get(elemClass).get("id");
}
public static <E extends SQLElement<E>> List<E> getByIds(Class<E> elemClass, Collection<Integer> ids)
public static <E extends SQLElement<E>> SQLElementList<E> getByIds(Class<E> elemClass, Collection<Integer> ids)
throws ORMException {
return getByIds(elemClass, ids.toArray(new Integer[ids.size()]));
}
public static <E extends SQLElement<E>> List<E> getByIds(Class<E> elemClass, Integer... ids) throws ORMException {
public static <E extends SQLElement<E>> SQLElementList<E> getByIds(Class<E> elemClass, Integer... ids) throws ORMException {
SQLField<E, Integer> idField = getSQLIdField(elemClass);
SQLWhereChain where = new SQLWhereChain(SQLBoolOp.OR);
for (Integer id : ids)
@ -176,6 +175,7 @@ public final class ORM {
}
@SuppressWarnings("unchecked")
private static <E extends SQLElement<E>> E getElementInstance(ResultSet set, Class<E> elemClass) throws ORMException {
try {
E instance = elemClass.getConstructor(int.class).newInstance(set.getInt("id"));
@ -184,33 +184,38 @@ public final class ORM {
for (int c = 1; c <= fieldCount; c++) {
String fieldName = set.getMetaData().getColumnLabel(c);
if (!instance.getFields().containsKey(fieldName)) continue;
// ignore when field is present in database but not handled by SQLElement instance
@SuppressWarnings("unchecked")
if (!instance.getFields().containsKey(fieldName)) continue;
SQLField<E, Object> sqlField = (SQLField<E, Object>) instance.getFields().get(fieldName);
if (sqlField.type.getJavaType().isEnum()) {
// JDBC ne supporte pas les enums
String enumStrValue = set.getString(c);
if (enumStrValue == null || set.wasNull()) instance.set(sqlField, null, false);
else {
Enum<?> enumValue = EnumUtil.searchUncheckedEnum(sqlField.type.getJavaType(), enumStrValue);
if (enumValue == null) throw new ORMException("The enum constant '" + enumStrValue
+ "' is not found in enum class " + sqlField.type.getJavaType().getName());
instance.set(sqlField, enumValue, false);
}
boolean customType = sqlField.type instanceof SQLCustomType;
Object val = set.getObject(c,
(Class<?>)(customType ? ((SQLCustomType<?, ?>)sqlField.type).intermediateJavaType
: sqlField.type.getJavaType()));
if (val == null || set.wasNull()) {
instance.set(sqlField, null, false);
}
else {
Object val = set.getObject(c, sqlField.type.getJavaType());
if (val == null || set.wasNull()) instance.set(sqlField, null, false);
else
instance.set(sqlField, val, false);
}
if (customType) {
try {
val = ((SQLCustomType<Object, Object>)sqlField.type).dbToJavaConv.apply(val);
} catch (Exception e) {
throw new ORMException("Error while converting value of field '"+sqlField.getName()+"' with SQLCustomType from "+((SQLCustomType<Object, Object>)sqlField.type).intermediateJavaType
+"(jdbc source) to "+sqlField.type.getJavaType()+"(java destination). The original value is '"+val.toString()+"'", e);
}
}
// la valeur venant de la BDD est marqué comme "non modifié"
// dans l'instance
// car le constructeur de l'instance met tout les champs comme
// modifiés
instance.modifiedSinceLastSave.remove(sqlField.name);
instance.set(sqlField, val, false);
// la valeur venant de la BDD est marqué comme "non modifié"
// dans l'instance car le constructeur de l'instance met
// tout les champs comme modifiés
instance.modifiedSinceLastSave.remove(sqlField.getName());
}
}
if (!instance.isValidForSave()) throw new ORMException(

32
src/main/java/fr/pandacube/java/util/orm/SQLCustomType.java Normal file
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@ -0,0 +1,32 @@
package fr.pandacube.java.util.orm;
import java.util.function.Function;
/**
*
* @author Marc
*
* @param <IT> intermediate type, the type of the value transmitted to the JDBC
* @param <JT> Java type
*/
public class SQLCustomType<IT, JT> extends SQLType<JT> {
public final Class<IT> intermediateJavaType;
public final Function<IT, JT> dbToJavaConv;
public final Function<JT, IT> javaToDbConv;
protected SQLCustomType(SQLType<IT> type, Class<JT> javaT, Function<IT, JT> dbToJava, Function<JT, IT> javaToDb) {
this(type.sqlDeclaration, type.getJavaType(), javaT, dbToJava, javaToDb);
}
protected SQLCustomType(String sqlD, Class<IT> intermediateJavaT, Class<JT> javaT, Function<IT, JT> dbToJava, Function<JT, IT> javaToDb) {
super(sqlD, javaT);
intermediateJavaType = intermediateJavaT;
dbToJavaConv = dbToJava;
javaToDbConv = javaToDb;
}
// tester en local
}

79
src/main/java/fr/pandacube/java/util/orm/SQLElement.java
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@ -52,7 +52,9 @@ public abstract class SQLElement<E extends SQLElement<E>> {
fields = new SQLFieldMap<>((Class<E>)getClass());
// le champ id commun à toutes les tables
fields.addField(new SQLField<>("id", SQLType.INT, false, true, 0));
SQLField<E, Integer> idF = new SQLField<>(SQLType.INT, false, true, 0);
idF.setName("id");
fields.addField(idF);
generateFields(fields);
fieldsCache.put((Class<E>)getClass(), fields);
@ -91,6 +93,7 @@ public abstract class SQLElement<E extends SQLElement<E>> {
else if (f.canBeNull || (f.autoIncrement && !stored)) set(f, null);
}
@SuppressWarnings("unchecked")
protected void generateFields(SQLFieldMap<E> listToFill) {
java.lang.reflect.Field[] declaredFields = getClass().getDeclaredFields();
@ -100,7 +103,11 @@ public abstract class SQLElement<E extends SQLElement<E>> {
try {
Object val = field.get(null);
if (val == null || !(val instanceof SQLField)) continue;
SQLField<E, ?> checkedF = (SQLField<E, ?>) val;
checkedF.setName(field.getName());
if (listToFill.containsKey(checkedF.getName())) throw new IllegalArgumentException(
"SQLField " + checkedF.getName() + " already exist in " + getClass().getName());
checkedF.setSQLElementType((Class<E>) getClass());
listToFill.addField((SQLField<?, ?>) val);
} catch (IllegalArgumentException | IllegalAccessException e) {
Log.severe("Can't get value of static field " + field.toString(), e);
@ -124,30 +131,30 @@ public abstract class SQLElement<E extends SQLElement<E>> {
/* package */ <T> void set(SQLField<E, T> sqlField, T value, boolean setModified) {
if (sqlField == null) throw new IllegalArgumentException("sqlField can't be null");
if (!fields.containsValue(sqlField))
throw new IllegalArgumentException(sqlField.getSQLElementType().getName()+sqlField.name + " is not a SQLField of " + getClass().getName());
throw new IllegalArgumentException(sqlField.getSQLElementType().getName()+sqlField.getName() + " is not a SQLField of " + getClass().getName());
boolean modify = false;
if (value == null) {
if (sqlField.canBeNull || (sqlField.autoIncrement && !stored)) modify = true;
else
throw new IllegalArgumentException(
"SQLField '" + sqlField.name + "' of " + getClass().getName() + " is a NOT NULL field");
"SQLField '" + sqlField.getName() + "' of " + getClass().getName() + " is a NOT NULL field");
}
else if (sqlField.type.isAssignableFrom(value)) modify = true;
else
throw new IllegalArgumentException("SQLField '" + sqlField.name + "' of " + getClass().getName()
throw new IllegalArgumentException("SQLField '" + sqlField.getName() + "' of " + getClass().getName()
+ " type is '" + sqlField.type.toString() + "' and can't accept values of type "
+ value.getClass().getName());
if (modify) if (!values.containsKey(sqlField)) {
values.put(sqlField, value);
if (setModified) modifiedSinceLastSave.add(sqlField.name);
if (setModified) modifiedSinceLastSave.add(sqlField.getName());
}
else {
Object oldVal = values.get(sqlField);
if (!Objects.equals(oldVal, value)) {
values.put(sqlField, value);
if (setModified) modifiedSinceLastSave.add(sqlField.name);
if (setModified) modifiedSinceLastSave.add(sqlField.getName());
}
// sinon, rien n'est modifié
}
@ -161,7 +168,7 @@ public abstract class SQLElement<E extends SQLElement<E>> {
T val = (T) values.get(field);
return val;
}
throw new IllegalArgumentException("The field '" + field.name + "' in this instance of " + getClass().getName()
throw new IllegalArgumentException("The field '" + field.getName() + "' in this instance of " + getClass().getName()
+ " does not exist or is not set");
}
@ -179,13 +186,13 @@ public abstract class SQLElement<E extends SQLElement<E>> {
private Map<SQLField<E, ?>, Object> getOnlyModifiedValues() {
Map<SQLField<E, ?>, Object> modifiedValues = new LinkedHashMap<>();
values.forEach((k, v) -> {
if (modifiedSinceLastSave.contains(k.name)) modifiedValues.put(k, v);
if (modifiedSinceLastSave.contains(k.getName())) modifiedValues.put(k, v);
});
return modifiedValues;
}
public boolean isModified(SQLField<E, ?> field) {
return modifiedSinceLastSave.contains(field.name);
return modifiedSinceLastSave.contains(field.getName());
}
@SuppressWarnings("unchecked")
@ -214,16 +221,8 @@ public abstract class SQLElement<E extends SQLElement<E>> {
List<Object> psValues = new ArrayList<>();
for (Map.Entry<SQLField<E, ?>, Object> entry : modifiedValues.entrySet()) {
sql += entry.getKey().name + " = ? ,";
if (entry.getKey().type.getJavaType().isEnum()) // prise en
// charge
// enum (non
// prise en
// charge
// par JDBC)
psValues.add(((Enum<?>) entry.getValue()).name());
else
psValues.add(entry.getValue());
sql += entry.getKey().getName() + " = ? ,";
addValueToSQLObjectList(psValues, entry.getKey(), entry.getValue());
}
if (sql.length() > 0) sql = sql.substring(0, sql.length() - 1);
@ -260,16 +259,8 @@ public abstract class SQLElement<E extends SQLElement<E>> {
}
first = false;
concat_vals += " ? ";
concat_fields += entry.getKey().name;
if (entry.getKey().type.getJavaType().isEnum()) // prise en
// charge
// enum (non
// prise en
// charge
// par JDBC)
psValues.add(((Enum<?>) entry.getValue()).name());
else
psValues.add(entry.getValue());
concat_fields += entry.getKey().getName();
addValueToSQLObjectList(psValues, entry.getKey(), entry.getValue());
}
PreparedStatement ps = conn.prepareStatement(
@ -305,6 +296,20 @@ public abstract class SQLElement<E extends SQLElement<E>> {
Log.debug(toStringStatement);
}
@SuppressWarnings("rawtypes")
protected static <E extends SQLElement<E>> void addValueToSQLObjectList(List<Object> list, SQLField<E, ?> field, Object jValue) throws ORMException {
if (jValue != null && field.type instanceof SQLCustomType) {
try {
jValue = ((SQLCustomType)field.type).javaToDbConv.apply(jValue);
} catch (Exception e) {
throw new ORMException("Error while converting value of field '"+field.getName()+"' with SQLCustomType from "+field.type.getJavaType()
+"(java source) to "+((SQLCustomType<?, ?>)field.type).intermediateJavaType+"(jdbc destination). The original value is '"+jValue.toString()+"'", e);
}
}
list.add(jValue);
}
public boolean isStored() {
return stored;
}
@ -346,7 +351,7 @@ public abstract class SQLElement<E extends SQLElement<E>> {
stored = false;
id = 0;
modifiedSinceLastSave.clear();
values.forEach((k, v) -> modifiedSinceLastSave.add(k.name));
values.forEach((k, v) -> modifiedSinceLastSave.add(k.getName()));
}
protected static class SQLFieldMap<E extends SQLElement<E>> extends LinkedHashMap<String, SQLField<E, ?>> {
@ -360,12 +365,12 @@ public abstract class SQLElement<E extends SQLElement<E>> {
private void addField(SQLField<?, ?> f) {
if (f == null) return;
if (containsKey(f.name)) throw new IllegalArgumentException(
"SQLField " + f.name + " already exist in " + sqlElemClass.getName());
if (containsKey(f.getName())) throw new IllegalArgumentException(
"SQLField " + f.getName() + " already exist in " + sqlElemClass.getName());
@SuppressWarnings("unchecked")
SQLField<E, ?> checkedF = (SQLField<E, ?>) f;
checkedF.setSQLElementType(sqlElemClass);
put(checkedF.name, checkedF);
put(checkedF.getName(), checkedF);
}
}
@ -376,9 +381,9 @@ public abstract class SQLElement<E extends SQLElement<E>> {
for (SQLField<E, ?> f : fields.values())
try {
b.append(f.name, get(f));
b.append(f.getName(), get(f));
} catch (IllegalArgumentException e) {
b.append(f.name, "(Undefined)");
b.append(f.getName(), "(Undefined)");
}
return b.toString();
@ -402,7 +407,7 @@ public abstract class SQLElement<E extends SQLElement<E>> {
public JsonObject asJsonObject() {
JsonObject json = new JsonObject();
for (SQLField<E, ?> f : getFields().values()) {
json.add(f.name, new Gson().toJsonTree(get(f)));
json.add(f.getName(), new Gson().toJsonTree(get(f)));
}
return json;
}

24
src/main/java/fr/pandacube/java/util/orm/SQLElementList.java
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@ -48,7 +48,7 @@ public class SQLElementList<E extends SQLElement<E>> extends ArrayList<E> {
public synchronized <T> void setCommon(SQLField<E, T> field, T value) {
if (field == null)
throw new IllegalArgumentException("field can't be null");
if (field.name == "id")
if (field.getName() == "id")
throw new IllegalArgumentException("Can't modify id field in a SQLElementList");
Class<E> elemClass = field.getSQLElementType();
@ -78,7 +78,7 @@ public class SQLElementList<E extends SQLElement<E>> extends ArrayList<E> {
*
* @throws SQLException
*/
public synchronized void saveCommon() throws SQLException {
public synchronized void saveCommon() throws ORMException {
List<E> storedEl = getStoredEl();
if (storedEl.isEmpty()) return;
@ -86,12 +86,12 @@ public class SQLElementList<E extends SQLElement<E>> extends ArrayList<E> {
List<Object> psValues = new ArrayList<>();
for (Map.Entry<SQLField<E, ?>, Object> entry : modifiedValues.entrySet()) {
sqlSet += entry.getKey().name + " = ? ,";
if (entry.getKey().type.getJavaType().isEnum()) // prise en charge
// enum (non prise
// en charge par
// JDBC)
sqlSet += entry.getKey().getName() + " = ? ,";
SQLElement.addValueToSQLObjectList(psValues, entry.getKey(), entry.getValue());
if (entry.getKey().type.getJavaType().isEnum()) {
// prise en charge enum (non prise en charge par JDBC)
psValues.add(((Enum<?>) entry.getValue()).name());
}
else
psValues.add(entry.getValue());
}
@ -106,9 +106,9 @@ public class SQLElementList<E extends SQLElement<E>> extends ArrayList<E> {
sqlWhere += "id = " + el.getId();
}
PreparedStatement ps = ORM.getConnection().getNativeConnection()
.prepareStatement("UPDATE " + storedEl.get(0).tableName() + " SET " + sqlSet + " WHERE " + sqlWhere);
try {
try(PreparedStatement ps = ORM.getConnection().getNativeConnection()
.prepareStatement("UPDATE " + storedEl.get(0).tableName() + " SET " + sqlSet + " WHERE " + sqlWhere);) {
int i = 1;
for (Object val : psValues)
@ -118,8 +118,8 @@ public class SQLElementList<E extends SQLElement<E>> extends ArrayList<E> {
ps.executeUpdate();
applyNewValuesToElements(storedEl);
} finally {
ps.close();
} catch (SQLException e) {
throw new ORMException(e);
}
}

31
src/main/java/fr/pandacube/java/util/orm/SQLFKField.java
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@ -7,36 +7,33 @@ public class SQLFKField<E extends SQLElement<E>, T, F extends SQLElement<F>> ext
private SQLField<F, T> sqlForeignKeyField;
private Class<F> sqlForeignKeyElemClass;
public SQLFKField(String n, SQLType<T> t, boolean nul, Class<F> fkEl, SQLField<F, T> fkF) {
super(n, t, nul);
protected SQLFKField(SQLType<T> t, boolean nul, T deflt, Class<F> fkEl, SQLField<F, T> fkF) {
super(t, nul, deflt);
construct(fkEl, fkF);
}
public SQLFKField(String n, SQLType<T> t, boolean nul, T deflt, Class<F> fkEl, SQLField<F, T> fkF) {
super(n, t, nul, deflt);
construct(fkEl, fkF);
public static <E extends SQLElement<E>, F extends SQLElement<F>> SQLFKField<E, Integer, F> idFK(boolean nul, Class<F> fkEl) {
return idFK(nul, null, fkEl);
}
public static <E extends SQLElement<E>, F extends SQLElement<F>> SQLFKField<E, Integer, F> idFK(String n, SQLType<Integer> t, boolean nul,
Class<F> fkEl) {
public static <E extends SQLElement<E>, F extends SQLElement<F>> SQLFKField<E, Integer, F> idFK(boolean nul, Integer deflt, Class<F> fkEl) {
if (fkEl == null) throw new IllegalArgumentException("foreignKeyElement can't be null");
try {
return new SQLFKField<>(n, t, nul, fkEl, ORM.getSQLIdField(fkEl));
SQLField<F, Integer> f = ORM.getSQLIdField(fkEl);
return new SQLFKField<>(f.type, nul, deflt, fkEl, f);
} catch (ORMInitTableException e) {
Log.severe("Can't create Foreign key Field called '" + n + "'", e);
Log.severe("Can't create Foreign key Field targetting id field of '"+fkEl+"'", e);
return null;
}
}
public static <E extends SQLElement<E>, F extends SQLElement<F>> SQLFKField<E, Integer, F> idFKField(String n, SQLType<Integer> t, boolean nul,
Integer deflt, Class<F> fkEl) {
public static <E extends SQLElement<E>, T, F extends SQLElement<F>> SQLFKField<E, T, F> customFK(boolean nul, Class<F> fkEl, SQLField<F, T> fkF) {
return customFK(nul, null, fkEl, fkF);
}
public static <E extends SQLElement<E>, T, F extends SQLElement<F>> SQLFKField<E, T, F> customFK(boolean nul, T deflt, Class<F> fkEl, SQLField<F, T> fkF) {
if (fkEl == null) throw new IllegalArgumentException("foreignKeyElement can't be null");
try {
return new SQLFKField<>(n, t, nul, deflt, fkEl, ORM.getSQLIdField(fkEl));
} catch (ORMInitTableException e) {
Log.severe("Can't create Foreign key Field called '" + n + "'", e);
return null;
}
return new SQLFKField<>(fkF.type, nul, deflt, fkEl, fkF);
}
private void construct(Class<F> fkEl, SQLField<F, T> fkF) {

31
src/main/java/fr/pandacube/java/util/orm/SQLField.java
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@ -8,36 +8,35 @@ import org.javatuples.Pair;
public class SQLField<E extends SQLElement<E>, T> {
private Class<E> sqlElemClass;
public final String name;
private String name = null;
public final SQLType<T> type;
public final boolean canBeNull;
public final boolean autoIncrement;
/* package */ final T defaultValue;
public SQLField(String n, SQLType<T> t, boolean nul, boolean autoIncr, T deflt) {
name = n;
public SQLField(SQLType<T> t, boolean nul, boolean autoIncr, T deflt) {
type = t;
canBeNull = nul;
autoIncrement = autoIncr;
defaultValue = deflt;
}
public SQLField(String n, SQLType<T> t, boolean nul) {
this(n, t, nul, false, null);
public SQLField(SQLType<T> t, boolean nul) {
this(t, nul, false, null);
}
public SQLField(String n, SQLType<T> t, boolean nul, boolean autoIncr) {
this(n, t, nul, autoIncr, null);
public SQLField(SQLType<T> t, boolean nul, boolean autoIncr) {
this(t, nul, autoIncr, null);
}
public SQLField(String n, SQLType<T> t, boolean nul, T deflt) {
this(n, t, nul, false, deflt);
public SQLField(SQLType<T> t, boolean nul, T deflt) {
this(t, nul, false, deflt);
}
/* package */ Pair<String, List<Object>> forSQLPreparedStatement() {
List<Object> params = new ArrayList<>(1);
if (defaultValue != null && !autoIncrement) params.add(defaultValue);
return new Pair<>(name + " " + type.toString() + (canBeNull ? " NULL" : " NOT NULL")
return new Pair<>(getName() + " " + type.toString() + (canBeNull ? " NULL" : " NOT NULL")
+ (autoIncrement ? " AUTO_INCREMENT" : "")
+ ((defaultValue == null || autoIncrement) ? "" : " DEFAULT ?"), params);
}
@ -50,6 +49,14 @@ public class SQLField<E extends SQLElement<E>, T> {
return sqlElemClass;
}
/* package */ void setName(String n) {
name = n;
}
public String getName() {
return name;
}
/**
* <b>Don't use this {@link #toString()} method in a SQL query, because
* the default value is not escaped correctly</b>
@ -67,14 +74,14 @@ public class SQLField<E extends SQLElement<E>, T> {
if (obj == null) return false;
if (!(obj instanceof SQLField)) return false;
SQLField<?, ?> f = (SQLField<?, ?>) obj;
if (!f.name.equals(name)) return false;
if (!f.getName().equals(getName())) return false;
if (!f.sqlElemClass.equals(sqlElemClass)) return false;
return true;
}
@Override
public int hashCode() {
return name.hashCode() + sqlElemClass.hashCode();
return getName().hashCode() + sqlElemClass.hashCode();
}
}

2
src/main/java/fr/pandacube/java/util/orm/SQLOrderBy.java
View File

@ -41,7 +41,7 @@ public class SQLOrderBy {
for (OBField f : orderByFields) {
if (!first) ret += ", ";
first = false;
ret += f.field.name + " " + f.direction.name();
ret += f.field.getName() + " " + f.direction.name();
}
return ret;
}

41
src/main/java/fr/pandacube/java/util/orm/SQLType.java
View File

@ -1,22 +1,23 @@
package fr.pandacube.java.util.orm;
import java.sql.Date;
import java.util.UUID;
import fr.pandacube.java.util.EnumUtil;
public class SQLType<T> {
private final String sqlType;
private final String sqlTypeParam;
protected final String sqlDeclaration;
private final Class<T> javaTypes;
public SQLType(String sqlT, String sqlP, Class<T> javaT) {
sqlType = sqlT;
sqlTypeParam = sqlP;
protected SQLType(String sqlD, Class<T> javaT) {
sqlDeclaration = sqlD;
javaTypes = javaT;
}
@Override
public String toString() {
return sqlType + sqlTypeParam;
return sqlDeclaration;
}
public boolean isAssignableFrom(Object val) {
@ -39,37 +40,38 @@ public class SQLType<T> {
return javaTypes;
}
public static final SQLType<Boolean> BOOLEAN = new SQLType<>("BOOLEAN", "", Boolean.class);
public static final SQLType<Boolean> BOOLEAN = new SQLType<>("BOOLEAN", Boolean.class);
public static final SQLType<Byte> TINYINT = new SQLType<>("TINYINT", "", Byte.class);
public static final SQLType<Byte> TINYINT = new SQLType<>("TINYINT", Byte.class);
public static final SQLType<Byte> BYTE = TINYINT;
public static final SQLType<Short> SMALLINT = new SQLType<>("SMALLINT", "", Short.class);
public static final SQLType<Short> SMALLINT = new SQLType<>("SMALLINT", Short.class);
public static final SQLType<Short> SHORT = SMALLINT;
public static final SQLType<Integer> INT = new SQLType<>("INT", "", Integer.class);
public static final SQLType<Integer> INT = new SQLType<>("INT", Integer.class);
public static final SQLType<Integer> INTEGER = INT;
public static final SQLType<Long> BIGINT = new SQLType<>("BIGINT", "", Long.class);
public static final SQLType<Long> BIGINT = new SQLType<>("BIGINT", Long.class);
public static final SQLType<Long> LONG = BIGINT;
public static final SQLType<Date> DATE = new SQLType<>("DATE", "", Date.class);
public static final SQLType<Date> DATE = new SQLType<>("DATE", Date.class);
public static final SQLType<Float> FLOAT = new SQLType<>("FLOAT", "", Float.class);
public static final SQLType<Float> FLOAT = new SQLType<>("FLOAT", Float.class);
public static final SQLType<Double> DOUBLE = new SQLType<>("DOUBLE", "", Double.class);
public static final SQLType<Double> DOUBLE = new SQLType<>("DOUBLE", Double.class);
@Deprecated
public static final SQLType<String> CHAR(int charCount) {
if (charCount <= 0) throw new IllegalArgumentException("charCount must be positive.");
return new SQLType<>("CHAR", "(" + charCount + ")", String.class);
return new SQLType<>("CHAR(" + charCount + ")", String.class);
}
public static final SQLType<String> VARCHAR(int charCount) {
if (charCount <= 0) throw new IllegalArgumentException("charCount must be positive.");
return new SQLType<>("VARCHAR", "(" + charCount + ")", String.class);
return new SQLType<>("VARCHAR(" + charCount + ")", String.class);
}
public static final SQLType<String> TEXT = new SQLType<>("TEXT", "", String.class);
public static final SQLType<String> TEXT = new SQLType<>("TEXT", String.class);
public static final SQLType<String> STRING = TEXT;
public static final <T extends Enum<T>> SQLType<T> ENUM(Class<T> enumType) {
@ -84,7 +86,10 @@ public class SQLType<T> {
}
enumStr += "'";
return new SQLType<>("VARCHAR", "(" + enumStr + ")", enumType);
return new SQLCustomType<>("VARCHAR(" + enumStr + ")", String.class, enumType, s -> EnumUtil.searchEnum(enumType, s), Enum::name);
}
public static final SQLType<UUID> CHAR36_UUID = new SQLCustomType<>(SQLType.CHAR(36), UUID.class, UUID::fromString, UUID::toString);
}

11
src/main/java/fr/pandacube/java/util/orm/SQLWhere.java
View File

@ -4,13 +4,20 @@ import java.util.List;
import org.javatuples.Pair;
import fr.pandacube.java.util.Log;
public abstract class SQLWhere {
public abstract Pair<String, List<Object>> toSQL();
public abstract Pair<String, List<Object>> toSQL() throws ORMException;
@Override
public String toString() {
return toSQL().getValue0();
try {
return toSQL().getValue0();
} catch (ORMException e) {
Log.warning(e);
return "[SQLWhere.toString() error (see logs)]";
}
}
}

2
src/main/java/fr/pandacube/java/util/orm/SQLWhereChain.java
View File

@ -22,7 +22,7 @@ public class SQLWhereChain extends SQLWhere {
}
@Override
public Pair<String, List<Object>> toSQL() {
public Pair<String, List<Object>> toSQL() throws ORMException {
String sql = "";
List<Object> params = new ArrayList<>();
boolean first = true;

21
src/main/java/fr/pandacube/java/util/orm/SQLWhereComp.java
View File

@ -27,19 +27,24 @@ public class SQLWhereComp extends SQLWhere {
}
@Override
public Pair<String, List<Object>> toSQL() {
public Pair<String, List<Object>> toSQL() throws ORMException {
List<Object> params = new ArrayList<>();
params.add(right);
return new Pair<>(left.name + " " + comp.sql + " ? ", params);
SQLElement.addValueToSQLObjectList(params, left, right);
return new Pair<>(left.getName() + " " + comp.sql + " ? ", params);
}
public enum SQLComparator {
/** Equivalent to SQL "<code>=</code>" */
EQ("="), /** Equivalent to SQL "<code>></code>" */
GT(">"), /** Equivalent to SQL "<code>>=</code>" */
GEQ(">="), /** Equivalent to SQL "<code>&lt;</code>" */
LT("<"), /** Equivalent to SQL "<code>&lt;=</code>" */
LEQ("<="), /** Equivalent to SQL "<code>!=</code>" */
EQ("="),
/** Equivalent to SQL "<code>></code>" */
GT(">"),
/** Equivalent to SQL "<code>>=</code>" */
GEQ(">="),
/** Equivalent to SQL "<code>&lt;</code>" */
LT("<"),
/** Equivalent to SQL "<code>&lt;=</code>" */
LEQ("<="),
/** Equivalent to SQL "<code>!=</code>" */
NEQ("!=");
public final String sql;

2
src/main/java/fr/pandacube/java/util/orm/SQLWhereLike.java
View File

@ -27,7 +27,7 @@ public class SQLWhereLike extends SQLWhere {
public Pair<String, List<Object>> toSQL() {
ArrayList<Object> params = new ArrayList<>();
params.add(likeExpr);
return new Pair<>(field.name + " LIKE ? ", params);
return new Pair<>(field.getName() + " LIKE ? ", params);
}
}

4
src/main/java/fr/pandacube/java/util/orm/SQLWhereNull.java
View File

@ -23,14 +23,14 @@ public class SQLWhereNull extends SQLWhere {
if (field == null) throw new IllegalArgumentException("field can't be null");
if (!field.canBeNull) Log.getLogger().log(Level.WARNING,
"Useless : Trying to check IS [NOT] NULL on the field " + field.getSQLElementType().getName() + "#"
+ field.name + " which is declared in the ORM as 'can't be null'");
+ field.getName() + " which is declared in the ORM as 'can't be null'");
fild = field;
nulll = isNull;
}
@Override
public Pair<String, List<Object>> toSQL() {
return new Pair<>(fild.name + " IS" + ((nulll) ? " NULL" : " NOT NULL"), new ArrayList<>());
return new Pair<>(fild.getName() + ((nulll) ? " IS NULL" : " IS NOT NULL"), new ArrayList<>());
}
}