SQLiteDialect.java

/*
 * 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.
 *
 */
package org.hibernate.dialect;

import java.sql.Types;

import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.dialect.function.StandardSQLFunction;
import org.hibernate.dialect.function.VarArgsSQLFunction;
import org.hibernate.dialect.pagination.LimitHandler;
import org.hibernate.dialect.pagination.SQLiteLimitHandler;
import org.hibernate.engine.spi.RowSelection;
import org.hibernate.type.IntegerType;
import org.hibernate.type.StringType;

/**
 * <a href="https://gist.github.com/virasak/54436">https://gist.github.com/virasak/54436</a>
 */
public class SQLiteDialect extends Dialect {
  public SQLiteDialect() {
    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) );
  }

  @Override
  public boolean supportsIdentityColumns() {
    return true;
  }

  /*
  public boolean supportsInsertSelectIdentity() {
    return true; // As specify in NHibernate dialect
  }
  */

  @Override
  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();
  }
  */

  @Override
  public String getIdentityColumnString() {
    // return "integer primary key autoincrement";
    return "integer";
  }

  @Override
  public String getIdentitySelectString() {
    return "select last_insert_rowid()";
  }

  @Override
  public LimitHandler buildLimitHandler(String sql, RowSelection selection) {
    return new SQLiteLimitHandler(sql, selection);
  }

  @Override
  public boolean supportsTemporaryTables() {
    return true;
  }

  @Override
  public String getCreateTemporaryTableString() {
    return "create temporary table if not exists";
  }

  @Override
  public boolean dropTemporaryTableAfterUse() {
    return false;
  }

  @Override
  public boolean supportsCurrentTimestampSelection() {
    return true;
  }

  @Override
  public boolean isCurrentTimestampSelectStringCallable() {
    return false;
  }

  @Override
  public String getCurrentTimestampSelectString() {
    return "select current_timestamp";
  }

  @Override
  public boolean supportsUnionAll() {
    return true;
  }

  @Override
  public boolean hasAlterTable() {
    return false; // As specify in NHibernate dialect
  }

  @Override
  public boolean dropConstraints() {
    return false;
  }

  @Override
  public String getAddColumnString() {
    return "add column";
  }

  @Override
  public String getForUpdateString() {
    return "";
  }

  @Override
  public boolean supportsOuterJoinForUpdate() {
    return false;
  }

  @Override
  public String getDropForeignKeyString() {
    throw new UnsupportedOperationException("No drop foreign key syntax supported by SQLiteDialect");
  }

  @Override
  public String getAddForeignKeyConstraintString(String constraintName,
      String[] foreignKey, String referencedTable, String[] primaryKey,
      boolean referencesPrimaryKey) {
    throw new UnsupportedOperationException("No add foreign key syntax supported by SQLiteDialect");
  }

  @Override
  public String getAddPrimaryKeyConstraintString(String constraintName) {
    throw new UnsupportedOperationException("No add primary key syntax supported by SQLiteDialect");
  }

  @Override
  public boolean supportsIfExistsBeforeTableName() {
    return true;
  }

  @Override
  public boolean supportsCascadeDelete() {
    return false;
  }
}

SQLiteLimitHandler.java

package org.hibernate.dialect.pagination;

import org.hibernate.engine.spi.RowSelection;

/**
 * An implementation of {@link org.hibernate.dialect.pagination.LimitHandler}
 * for the {@link org.hibernate.dialect.SQLiteDialect} based on
 * {@link org.hibernate.dialect.pagination.CUBRIDLimitHandler}.
 */
public class SQLiteLimitHandler extends AbstractLimitHandler {

  /**
   * {@inheritDoc}
   */
  public SQLiteLimitHandler(String sql, RowSelection selection) {
    super(sql, selection);
  }

  @Override
  public boolean supportsLimit() {
    return true;
  }

  @Override
  public String getProcessedSql() {
    String result;

    if (LimitHelper.useLimit(this, this.selection)) {
      final boolean useLimitOffset = LimitHelper.hasFirstRow(this.selection);
      result = this.sql + (useLimitOffset ? " limit ? offset ?" : " limit ?");
    } else {
      result = this.sql;
    }

    return result;
  }
}

For what Hibernate version is this snippet? Seems not suitable for 5.0.4 or am I doing something wrong? Thanks!