No, the system default encoding is used. No, the default value is ,. Use empty string to suppress quoting. No, the default value is ". No, the default value is true first line contains column names. No, the default value is true. It is also possible to reference columns by an index, i. Scriptella is bundled with a set of adapters for popular JDBC drivers. It is allowed to use any JDBC vendor driver, but Scriptella adapters provide the following benefits:.
Scriptella provides auto-discovery feature based on the connection URL. If driver name is not specified the driver will be recognized based on the specified URL. Internally a driver named "auto" is used to select a target driver implementation. JDBC batching is a very important feature which allows sending multiple commands to the database in one call. Scriptella batching is controlled by statement. The value of this parameter specifies number of statements to be combined in a batch before sending it to the database.
Another important parameter is statement. It gives JDBC driver a hint about the number of rows that should be fetched from the database when more rows are needed for the result set. Combining statement. The feature of Scriptella is a possibility to write transformations in a language suitable for the datasource you operate, so we've added a built-in support for LDIF scripts and RFC search filter queries.
This driver uses SQL-like syntax for scripts and queries. See Getting Started Documentation. A similar driver is offered by Novell. The built-in Text driver provides a generic way to handle text data. The Janino Provider is bundled with Scriptella distribution and provides a Java bridge. This is a framework by which Java Applications can "host" script engines. Scriptella supports JSR compatible scripting languages via javax. Velocity is a Java-based template engine which can be used to generate reports.
Most other ETL tools provides custom reporting services, but Scriptella relies on proven open source solutions instead of reinventing the wheel. Typically velocity report is generated in several steps:.
Scriptella allows specifying URLs to externally located resources. The following protocols are supported:. Download Scriptella examples from Downloads page. The examples are ready to run, although you may have to download additional third party jars, which cannot be redistributed, e. This chapter describes Scriptella usage best practices. The following list provides general recommendations for Scriptella ETL scripts:. The following steps are required to create a simple database upgrade framework:.
Scriptella provides enough features to create a simple database upgrade framework, but the primary one is the ability to work with several datasources.
This means you can change database vendors between builds and synchronize several datasources, e. Scriptella is lightweight and can be easily added to a set of application libraries during deployment.
In this case you can integrate your schema upgrade solution with application startup procedure typically written as a set of webapp context listeners or initializer servlets. Reference Documentation. Font size:. The following diagram is an overview of the Scriptella execution model:. Download Scriptella binary distribution.
Check if JRE has been installed correctly by running java -version. Among other libraries the Scriptella distribution contains the following jars: scriptella-core. You have to load additional driver dependencies in a connection classpath attrubute or by putting the jars into lib folder.
Values of properties defined in this element can be overridden by setting a system property or another external property depending on execution environment, e.
Ant task. JEXL syntax is used for expressions. EtlVariable class provides an entry point for these extensions: date: - Functions for parsing and formatting dates. See JavaDoc for more details. As of version 1. For now only class lookup is available. In this case prepared statements may be cached thus increasing the performance of hot spot sections evaluated multiple times. System requirements Ant 1.
Installation Use scriptella. No, default value is true. No, default value is false. Examples Executes etl. No, default ETL template is generated. Defaults to true.
No debug If true print debugging information. Nested Elements The task has no nested elements. Examples Produces default ETL template named etl. Typical use cases for in-process integration: Preparing data-sources for testing. Filed under migrations , New features , Uncategorized Tagged with etl , globals , scriptella. August 14, 14 Comments. JDBC batching is a very important feature which allows sending multiple commands to the database in one call.
Scriptella batching is controlled by statement. The value of this parameter specifies number of statements to be combined in a batch before sending it to the database.
Please note that behavior for batching depends on the type of statements processed, as the result non-prepared SQL statements statements without? The grouping rules are the following:. Example 1. Another important parameter statement. Filed under migrations , Uncategorized Tagged with batching , java , jdbc , performance , scriptella.
May 5, 2 Comments. It seems obvious and natural, but it was challenging for me to add dynamic includes implementation requested by one of Scriptella users. Here is an example of dynamic includes. This feature is especially useful for building Rails-like migrations. Filed under migrations , Uncategorized. April 20, Leave a comment.
It works the same way as? March 23, Leave a comment. March 19, 1 Comment. JEXL lacks a possibility to instantiate Java object or directly invoke static methods. The solution is to use a helper variable named etl which provides several utility classes. Here is a simple ETL to script utilizing the new feature:.
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