package com.free.core.dialect;
/*
* The author disclaims copyright to this source code. In place of
* a legal notice, here is a blessing:
*
* May you do good and not evil.
* May you find forgiveness for yourself and forgive others.
* May you share freely, never taking more than you give.
*
*/
import java.sql.Types;
import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.dialect.function.VarArgsSQLFunction;
import org.hibernate.type.IntegerType;
import org.hibernate.type.StringType;
public class SQLiteDialect extends Dialect {
public SQLiteDialect() {
super();
registerColumnType(Types.BIT, "integer");
registerColumnType(Types.TINYINT, "tinyint");
registerColumnType(Types.SMALLINT, "smallint");
registerColumnType(Types.INTEGER, "integer");
registerColumnType(Types.BIGINT, "bigint");
registerColumnType(Types.FLOAT, "float");
registerColumnType(Types.REAL, "real");
registerColumnType(Types.DOUBLE, "double");
registerColumnType(Types.NUMERIC, "numeric");
registerColumnType(Types.DECIMAL, "decimal");
registerColumnType(Types.CHAR, "char");
registerColumnType(Types.VARCHAR, "varchar");
registerColumnType(Types.LONGVARCHAR, "longvarchar");
registerColumnType(Types.DATE, "date");
registerColumnType(Types.TIME, "time");
registerColumnType(Types.TIMESTAMP, "timestamp");
registerColumnType(Types.BINARY, "blob");
registerColumnType(Types.VARBINARY, "blob");
registerColumnType(Types.LONGVARBINARY, "blob");
// registerColumnType(Types.NULL, "null");
registerColumnType(Types.BLOB, "blob");
registerColumnType(Types.CLOB, "clob");
registerColumnType(Types.BOOLEAN, "integer");
registerFunction("concat", new VarArgsSQLFunction(StringType.INSTANCE, "", "||", ""));
registerFunction("mod", new SQLFunctionTemplate(IntegerType.INSTANCE, "?1 % ?2"));
registerFunction("substr", new StandardSQLFunction("substr", StringType.INSTANCE));
registerFunction("substring", new StandardSQLFunction("substr", StringType.INSTANCE));
}
public boolean supportsIdentityColumns() {
return true;
}
/*
public boolean supportsInsertSelectIdentity() {
return true; // As specify in NHibernate dialect
}
*/
public boolean hasDataTypeInIdentityColumn() {
return false; // As specify in NHibernate dialect
}
/*
public String appendIdentitySelectToInsert(String insertString) {
return new StringBuffer(insertString.length()+30). // As specify in NHibernate dialect
append(insertString).
append("; ").append(getIdentitySelectString()).
toString();
}
*/
public String getIdentityColumnString() {
// return "integer primary key autoincrement";
return "integer";
}
public String getIdentitySelectString() {
return "select last_insert_rowid()";
}
public boolean supportsLimit() {
return true;
}
public String getLimitString(String query, boolean hasOffset) {
return new StringBuffer(query.length() + 20).append(query).append(
hasOffset ? " limit ? offset ?" : " limit ?").toString();
}
public boolean supportsTemporaryTables() {
return true;
}
public String getCreateTemporaryTableString() {
return "create temporary table if not exists";
}
public boolean dropTemporaryTableAfterUse() {
return false;
}
public boolean supportsCurrentTimestampSelection() {
return true;
}
public boolean isCurrentTimestampSelectStringCallable() {
return false;
}
public String getCurrentTimestampSelectString() {
return "select current_timestamp";
}
public boolean supportsUnionAll() {
return true;
}
public boolean hasAlterTable() {
return false; // As specify in NHibernate dialect
}
public boolean dropConstraints() {
return false;
}
public String getAddColumnString() {
return "add column";
}
public String getForUpdateString() {
return "";
}
public boolean supportsOuterJoinForUpdate() {
return false;
}
public String getDropForeignKeyString() {
throw new UnsupportedOperationException(
"No drop foreign key syntax supported by SQLiteDialect");
}
public String getAddForeignKeyConstraintString(String constraintName,
String[] foreignKey, String referencedTable, String[] primaryKey,
boolean referencesPrimaryKey) {
throw new UnsupportedOperationException(
"No add foreign key syntax supported by SQLiteDialect");
}
public String getAddPrimaryKeyConstraintString(String constraintName) {
throw new UnsupportedOperationException(
"No add primary key syntax supported by SQLiteDialect");
}
public boolean supportsIfExistsBeforeTableName() {
return true;
}
public boolean supportsCascadeDelete() {
return false;
}
/**
* 修复分页bug
* @author Z.kc
*/
@Override
public boolean bindLimitParametersInReverseOrder() {
return true;
}
}
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.sqlite.JDBC</property>
<property name="connection.url">jdbc:sqlite:D:/test.db</property>
<property name="connection.username"></property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="c3p0.min_size">0</property>
<property name="c3p0.max_size">15</property>
<property name="c3p0.timeout">1800</property>
<!-- 当连接池耗尽时,一次获得连接数-->
<property name="c3p0.acquire_increment">1</property>
<property name="c3p0.max_statements">0</property>
<!-- 当连接池连接耗尽时,客户端getConnection(),所等待的时间-->
<property name="c3p0.idle_test_period">120</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Configuration information -->
<property name="dialect">com.free.core.dialect.SQLiteDialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="hibernate.show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">update</property>
<property name="javax.persistence.validation.mode">none</property>
<!-- Mapping entity class -->
<mapping class="com.free.system.model.Depart" />
<mapping class="com.free.system.model.User" />
<mapping class="com.free.system.model.Role" />
</session-factory>
</hibernate-configuration>