Android Open Source - Android-Lib-Database Query

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License

The source code is released under:

Apache License

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Java Source Code

package android.lib.database.query;
/*from   w ww .  java2  s.com*/
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


/**
 * A SQL abstraction layer for building SQLite SQL queries via a object-oriented API.
 * <p>The end result of a {@link Query} object will produce a SQL statement that represents the
 * target query and can be directly executed against the database.</p>
 * <p>{@link Query} object provides fou primary types of queries, {@link Select}, {@link Update},
 * {@link Insert} and {@link Delete}, that can be used to interacting or building queries.</p>
 * <p>For complex queries such as sub-<code>SELECT</code> queries, instantiate a {@link Query}
 * object with the specific raw SQL statement.</p>
 */
public class Query {
    private final List<Object> parameters;

    protected String rawSQL;

    public Query(final String rawSQL, final Object... parameters) {
        this.rawSQL     = rawSQL;
        this.parameters = Arrays.asList(parameters);
    }

    public Query(final String rawSQL, final List<Object> parameters) {
        this.rawSQL     = rawSQL;
        this.parameters = parameters;
    }

    protected Query() {
        this.parameters = new ArrayList<Object>();
    }

    public String getRawSQL() {
        return this.rawSQL;
    }

    public List<Object> getParameters() {
        return this.parameters;
    }

    public static Select select() {
        return new Select();
    }

    public static Update update() {
        return new Update();
    }

    public static Insert insert() {
        return new Insert();
    }

    public static Delete delete() {
        return new Delete();
    }
}

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