c# print barcode zebra <property name="props" value="default"/> <property file="${props}.properties"/> in Java

Generator ECC200 in Java <property name="props" value="default"/> <property file="${props}.properties"/>

<property name="props" value="default"/> <property file="${props}.properties"/>
Generating Data Matrix In Java
Using Barcode encoder for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
ECC200 Scanner In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
www.OnBarcode.com
In this case, we load default.properties unless the property props has been overridden previously, perhaps with
Paint QR Code In Java
Using Barcode creator for Java Control to generate, create QR image in Java applications.
www.OnBarcode.com
Barcode Generator In Java
Using Barcode generator for Java Control to generate, create Barcode image in Java applications.
www.OnBarcode.com
ant -Dprops=my
Make Code 128B In Java
Using Barcode printer for Java Control to generate, create Code 128C image in Java applications.
www.OnBarcode.com
Code 128C Creation In Java
Using Barcode drawer for Java Control to generate, create Code 128B image in Java applications.
www.OnBarcode.com
This would load my.properties instead, thanks to property immutability and -D setting props first.
Painting European Article Number 13 In Java
Using Barcode printer for Java Control to generate, create EAN 13 image in Java applications.
www.OnBarcode.com
Draw Postnet 3 Of 5 In Java
Using Barcode maker for Java Control to generate, create Postnet image in Java applications.
www.OnBarcode.com
NOTE
DataMatrix Scanner In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
ECC200 Generator In None
Using Barcode creation for Online Control to generate, create DataMatrix image in Online applications.
www.OnBarcode.com
There is a third-party task <propertycopy> provided at the Sourceforge ant-contrib project that more cleanly accomplishes property dereferencing. We recommend using this task instead of the craziness shown here. See section 10.6 for details on <propertycopy>.
Generate UPC-A Supplement 2 In Visual C#
Using Barcode generator for .NET framework Control to generate, create UPC-A Supplement 2 image in .NET framework applications.
www.OnBarcode.com
Barcode Scanner In C#.NET
Using Barcode recognizer for .NET framework Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
Using references for nested patternsets Patternsets provide a nice abstraction for file and directory name matching for use inside of filesets. Defining a patternset only once with an id allows it to be reused in any number of filesets. Nesting patternsets allows for patternset grouping. Here s an example:
Linear Creator In .NET
Using Barcode creator for ASP.NET Control to generate, create Linear image in ASP.NET applications.
www.OnBarcode.com
Read QR In None
Using Barcode recognizer for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
<patternset id="image.files" includes="**/*.gif,**/*.jpg"/>
Draw PDF 417 In VB.NET
Using Barcode creation for .NET Control to generate, create PDF-417 2d barcode image in .NET framework applications.
www.OnBarcode.com
Barcode Reader In Visual Basic .NET
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
REFERENCES
Drawing ECC200 In Objective-C
Using Barcode drawer for iPhone Control to generate, create Data Matrix image in iPhone applications.
www.OnBarcode.com
2D Maker In C#
Using Barcode creator for Visual Studio .NET Control to generate, create 2D image in .NET applications.
www.OnBarcode.com
<patternset id="binary.files"> <exclude name="**/*.txt"/> <exclude name="**/*.xml"/> <patternset refid="image.files"/> </patternset> <property name="binary.files.debug" refid="binary.files"/> <echo level="verbose"> binary.files.debug = ${binary.files.debug} </echo>
Generating Code 128 Code Set B In Java
Using Barcode generator for BIRT Control to generate, create Code 128C image in BIRT applications.
www.OnBarcode.com
Barcode Drawer In Visual Studio .NET
Using Barcode generation for Visual Studio .NET Control to generate, create Barcode image in VS .NET applications.
www.OnBarcode.com
The binary.files patternset excludes both .txt and .xml files, and the files included or excluded by the image.files patternset. In this case, binary.files will also include .jpg and .gif files. The string representation of a patternset is useful for debugging purposes, so defining a property using the patternset refid yields these results:
[echo] binary.files.debug = patternSet{ includes: [**/*.gif, **/ *.jpg] excludes: [**/*.txt, **/*.xml] }
BEST PRACTICES
While it is necessary to understand the correct syntax and rules for utilizing Ant s datatypes and properties, this is only scratching the surface. There are several practices that we recommend in order to realize far greater benefit from these abstractions: Use <property location="."/> to define file and paths. Use the value .. variant for other string values, including file name fragments if needed. Nest path definitions. For example, our application has a <path id="compile.classpath"> defined, and that same path along with some other dependencies are needed in our testing compilation and execution. Our <path id="test.classpath"> is defined as including <path refid="compile. classpath"/>. This is to eliminate duplication and increases maintainability and reusability. Using <filterset> to perform simple text substitutions during a build can accomplish powerful things like inserting dates or other dynamic build-time information. Be careful not to use it on binary files, however. Take advantage of conditional target execution and conditional patternset capabilities to allow your build to adapt to its environment. Perhaps it is acceptable if a dependency is not present, and its absence will simply omit some classes from compilation, testing, packaging, and deployment. For example, Ant s very own build makes extensive use of conditional patternsets to exclude compilation of the many optional tasks if their dependencies are not present; this allows Ant to be easily built with no configuration changes or need to install dependencies for unused tasks.
UNDERSTANDING ANT DATATYPES AND PROPERTIES
Carefully consider the directory structure of your project, including how properties will map to top-level or subordinate directories. By planning this well, a parent build can easily control where it receives the output of the child build. View properties that refer to directories as Unix-like mounted directories they reside logically as a rooted tree from the base build directory, yet physically do not necessarily reside in that hierarchy.
SUMMARY
The purpose of this chapter is to introduce the foundational Ant concepts of paths, filesets, patternsets, filtersets, properties, and references. Let s now take a look at how these concepts are used in practice with an example straight from our sample application build file. Our compilation step shown in section 3.2 utilizes all of these facilities, either directly or indirectly.
<target name="compile" depends="init"> <javac destdir="${build.dir}" debug="${build.debug}" includeAntRuntime="yes" srcdir="src"> <classpath refid="compile.classpath"/> </javac> </target>
We use a property, build.debug, to control whether compilation is performed with debug on or off. Typically, the includeAntRuntime value should be set to no, but our compilation is building a custom Ant task and requires ant.jar. The <javac> task acts as an implicit fileset, with srcdir mapping to <fileset> s dir attribute. All files in the src tree are considered for compilation because no excludes or explicit includes were specified. A reference to a previously defined path, compile.classpath, is used to define our compilation classpath. From this chapter, several important facts about Ant should stick with you throughout this book and on into your build file writing: Ant uses datatypes to provide rich reusable parameters to tasks. <javac> is a task utilizing most of Ant s datatypes. Paths represent an ordered list of files and directories. Many tasks can accept a classpath, which is an Ant path. Paths can be specified in a cross platform manner, using the MS-DOS conventions of semicolon (;) and slash mark (/) or the Unix conventions of colon (:) and backslash (\); Ant sorts it all out at run time. Filesets represent a collection of files rooted from a specified directory. Tasks that operate on sets of files often use Ant s fileset datatype. Filesets are resolved when they are encountered by the build process and therefore do not take into account files that are added or removed afterwards.
Copyright © OnBarcode.com . All rights reserved.