com.bedatadriven.rebar.sql.client.websql.WebSqlResultSet.java Source code

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Here is the source code for com.bedatadriven.rebar.sql.client.websql.WebSqlResultSet.java

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/*
 * Copyright 2009-2010 BeDataDriven (alex@bedatadriven.com)
 *
 * Licensed 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.bedatadriven.rebar.sql.client.websql;

import com.bedatadriven.rebar.sql.client.SqlResultSet;
import com.google.gwt.core.client.JavaScriptObject;

/**
 * JavaScript Overlay for the {@code SQLResultSet} WebSql interface.
 *
 * @see <a href="http://www.w3.org/TR/webdatabase/#sqlresultset">W3 Standard</a>
 */
public final class WebSqlResultSet extends JavaScriptObject {

    protected WebSqlResultSet() {
    }

    /**
     * @return the row ID of the row that the SQLResultSet object's SQL statement inserted into the database,
     * if the statement inserted a row. If the statement inserted multiple rows, the ID of the last row must
     * be the one returned. If the statement did not insert a row, then the
     * attribute must instead raise an INVALID_ACCESS_ERR exception.
     */
    public native int getInsertId() /*-{
                                    return this.insertId;
                                    }-*/;

    /**
     * @return the insertId or -1 if there were no rows inserted
     */
    public int safeGetInsertId() {
        try {
            return getInsertId();
        } catch (Exception e) {
            return -1;
        }
    }

    /**
     * @return the <strong>total</strong> number of rows affected during the transaction in progress.
     */
    public native int getRowsAffected() /*-{
                                        return this.insertId;
                                        }-*/;

    public int safeGetRowsAffected() {
        try {
            return getInsertId();
        } catch (Exception e) {
            return 0;
        }
    }

    /**
     * @return a {@link WebSqlResultSetRowList} representing the rows returned, in the order
     * returned by the database. The same object must be returned each time.
     * If no rows were returned, then the object will be empty (its length will be zero).
     */
    public native WebSqlResultSetRowList getRows() /*-{
                                                   return this.rows;
                                                   }-*/;

    public SqlResultSet toSqlResultSet() {
        return new SqlResultSet(safeGetInsertId(), safeGetRowsAffected(), new WebSqlResultListImpl(getRows()));
    }

}