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| <div class="section" id="findjava"> |
| <span id="module:FindJava"></span><h1>FindJava<a class="headerlink" href="#findjava" title="Permalink to this headline">ΒΆ</a></h1> |
| <p>Find Java</p> |
| <p>This module finds if Java is installed and determines where the |
| include files and libraries are. The caller may set variable JAVA_HOME |
| to specify a Java installation prefix explicitly.</p> |
| <p>See also the <span class="target" id="index-0-module:FindJNI"></span><a class="reference internal" href="FindJNI.html#module:FindJNI" title="FindJNI"><code class="xref cmake cmake-module docutils literal"><span class="pre">FindJNI</span></code></a> module to find Java development tools.</p> |
| <p>Specify one or more of the following components as you call this find module. See example below.</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">Runtime</span> <span class="o">=</span> <span class="n">User</span> <span class="n">just</span> <span class="n">want</span> <span class="n">to</span> <span class="n">execute</span> <span class="n">some</span> <span class="n">Java</span> <span class="n">byte</span><span class="o">-</span><span class="n">compiled</span> |
| <span class="n">Development</span> <span class="o">=</span> <span class="n">Development</span> <span class="n">tools</span> <span class="p">(</span><span class="n">java</span><span class="p">,</span> <span class="n">javac</span><span class="p">,</span> <span class="n">javah</span> <span class="ow">and</span> <span class="n">javadoc</span><span class="p">),</span> <span class="n">includes</span> <span class="n">Runtime</span> <span class="n">component</span> |
| <span class="n">IdlJ</span> <span class="o">=</span> <span class="n">idl</span> <span class="n">compiler</span> <span class="k">for</span> <span class="n">Java</span> |
| <span class="n">JarSigner</span> <span class="o">=</span> <span class="n">signer</span> <span class="n">tool</span> <span class="k">for</span> <span class="n">jar</span> |
| </pre></div> |
| </div> |
| <p>This module sets the following result variables:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span>Java_JAVA_EXECUTABLE = the full path to the Java runtime |
| Java_JAVAC_EXECUTABLE = the full path to the Java compiler |
| Java_JAVAH_EXECUTABLE = the full path to the Java header generator |
| Java_JAVADOC_EXECUTABLE = the full path to the Java documentation generator |
| Java_IDLJ_EXECUTABLE = the full path to the Java idl compiler |
| Java_JAR_EXECUTABLE = the full path to the Java archiver |
| Java_JARSIGNER_EXECUTABLE = the full path to the Java jar signer |
| Java_VERSION_STRING = Version of java found, eg. 1.6.0_12 |
| Java_VERSION_MAJOR = The major version of the package found. |
| Java_VERSION_MINOR = The minor version of the package found. |
| Java_VERSION_PATCH = The patch version of the package found. |
| Java_VERSION_TWEAK = The tweak version of the package found (after '_') |
| Java_VERSION = This is set to: $major.$minor.$patch(.$tweak) |
| </pre></div> |
| </div> |
| <p>The minimum required version of Java can be specified using the |
| standard CMake syntax, e.g. find_package(Java 1.5)</p> |
| <p>NOTE: ${Java_VERSION} and ${Java_VERSION_STRING} are not guaranteed to |
| be identical. For example some java version may return: |
| Java_VERSION_STRING = 1.5.0_17 and Java_VERSION = 1.5.0.17</p> |
| <p>another example is the Java OEM, with: Java_VERSION_STRING = 1.6.0-oem |
| and Java_VERSION = 1.6.0</p> |
| <p>For these components the following variables are set:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">Java_FOUND</span> <span class="o">-</span> <span class="n">TRUE</span> <span class="k">if</span> <span class="nb">all</span> <span class="n">components</span> <span class="n">are</span> <span class="n">found</span><span class="o">.</span> |
| <span class="n">Java_</span><span class="o"><</span><span class="n">component</span><span class="o">></span><span class="n">_FOUND</span> <span class="o">-</span> <span class="n">TRUE</span> <span class="k">if</span> <span class="o"><</span><span class="n">component</span><span class="o">></span> <span class="ow">is</span> <span class="n">found</span><span class="o">.</span> |
| </pre></div> |
| </div> |
| <p>Example Usages:</p> |
| <div class="highlight-default"><div class="highlight"><pre><span></span><span class="n">find_package</span><span class="p">(</span><span class="n">Java</span><span class="p">)</span> |
| <span class="n">find_package</span><span class="p">(</span><span class="n">Java</span> <span class="n">COMPONENTS</span> <span class="n">Runtime</span><span class="p">)</span> |
| <span class="n">find_package</span><span class="p">(</span><span class="n">Java</span> <span class="n">COMPONENTS</span> <span class="n">Development</span><span class="p">)</span> |
| </pre></div> |
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