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| org.apache.openjpa.lib.util</FONT> |
| <BR> |
| Class JavaVersions</H2> |
| <PRE> |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> |
| <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.openjpa.lib.util.JavaVersions</B> |
| </PRE> |
| <HR> |
| <DL> |
| <DT><PRE>public class <B>JavaVersions</B><DT>extends <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></DL> |
| </PRE> |
| |
| <P> |
| Utilities for dealing with different Java spec versions. |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>Author:</B></DT> |
| <DD>Abe White</DD> |
| </DL> |
| <HR> |
| |
| <P> |
| <!-- =========== FIELD SUMMARY =========== --> |
| |
| <A NAME="field_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Field Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#VERSION">VERSION</A></B></CODE> |
| |
| <BR> |
| Java version; one of 2, 3, 4, 5, 6, or 7.</TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| |
| <A NAME="constructor_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Constructor Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#JavaVersions()">JavaVersions</A></B>()</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
| |
| <A NAME="method_summary"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getCause(java.lang.Throwable)">getCause</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> ex)</CODE> |
| |
| <BR> |
| Return the cause of the given throwable.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getParameterizedTypes(java.lang.reflect.Field)">getParameterizedTypes</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/reflect/Field.html" title="class or interface in java.lang.reflect">Field</A> f)</CODE> |
| |
| <BR> |
| Collects the parameterized type declarations for a given field.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getParameterizedTypes(java.lang.reflect.Method)">getParameterizedTypes</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/reflect/Method.html" title="class or interface in java.lang.reflect">Method</A> meth)</CODE> |
| |
| <BR> |
| Collects the parameterized return type declarations for a given method.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getVersionSpecificClass(java.lang.Class)">getVersionSpecificClass</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> base)</CODE> |
| |
| <BR> |
| Returns a version-specific instance of the specified class</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getVersionSpecificClass(java.lang.String)">getVersionSpecificClass</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> base)</CODE> |
| |
| <BR> |
| Obtains a subclass of the specific base class that is |
| specific to the current version of Java in use.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#initCause(java.lang.Throwable, java.lang.Throwable)">initCause</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> ex, |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> cause)</CODE> |
| |
| <BR> |
| Set the cause of the given throwable.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#isAnnotation(java.lang.Class)">isAnnotation</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> cls)</CODE> |
| |
| <BR> |
| Return true if the given type is an annotation.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#isEnumeration(java.lang.Class)">isEnumeration</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> cls)</CODE> |
| |
| <BR> |
| Return true if the given type is an enumeration.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#main(java.lang.String[])">main</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] args)</CODE> |
| |
| <BR> |
| </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#transferStackTrace(java.lang.Throwable, java.lang.Throwable)">transferStackTrace</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> from, |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> to)</CODE> |
| |
| <BR> |
| Transfer the stack from one throwable to another, or return |
| false if it cannot be done, possibly due to an unsupported Java version.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> |
| </TR> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ============ FIELD DETAIL =========== --> |
| |
| <A NAME="field_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Field Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="VERSION"><!-- --></A><H3> |
| VERSION</H3> |
| <PRE> |
| public static final int <B>VERSION</B></PRE> |
| <DL> |
| <DD>Java version; one of 2, 3, 4, 5, 6, or 7. |
| <P> |
| <DL> |
| </DL> |
| </DL> |
| |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| |
| <A NAME="constructor_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Constructor Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="JavaVersions()"><!-- --></A><H3> |
| JavaVersions</H3> |
| <PRE> |
| public <B>JavaVersions</B>()</PRE> |
| <DL> |
| </DL> |
| |
| <!-- ============ METHOD DETAIL ========== --> |
| |
| <A NAME="method_detail"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
| <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
| <B>Method Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="getVersionSpecificClass(java.lang.Class)"><!-- --></A><H3> |
| getVersionSpecificClass</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> <B>getVersionSpecificClass</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> base)</PRE> |
| <DL> |
| <DD>Returns a version-specific instance of the specified class |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>base</CODE> - the base class to check |
| <DT><B>Returns:</B><DD>the JDK-version-specific version of the class<DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#getVersionSpecificClass(java.lang.String)"><CODE>getVersionSpecificClass(String)</CODE></A></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getVersionSpecificClass(java.lang.String)"><!-- --></A><H3> |
| getVersionSpecificClass</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> <B>getVersionSpecificClass</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> base) |
| throws <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ClassNotFoundException.html" title="class or interface in java.lang">ClassNotFoundException</A></PRE> |
| <DL> |
| <DD>Obtains a subclass of the specific base class that is |
| specific to the current version of Java in use. The |
| heuristic for the class name to load will be that OpenJPA |
| first checks for the name of the class with the current |
| setting of the <A HREF="../../../../../org/apache/openjpa/lib/util/JavaVersions.html#VERSION"><CODE>VERSION</CODE></A> field, then each number in |
| decreasing order, until ending in the unqualified name. |
| For example, if we are using JDK 1.5.1, and we want to load |
| "org.apache.openjpa.lib.SomeClass", we will try to load the following |
| classes in order and return the first one that is successfully |
| found and loaded: |
| <ol> |
| <li>org.apache.openjpa.lib.SomeClass5</li> |
| <li>org.apache.openjpa.lib.SomeClass4</li> |
| <li>org.apache.openjpa.lib.SomeClass3</li> |
| <li>org.apache.openjpa.lib.SomeClass2</li> |
| <li>org.apache.openjpa.lib.SomeClass1</li> |
| <li>org.apache.openjpa.lib.SomeClass</li> |
| </ol> |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>base</CODE> - the base name of the class to load |
| <DT><B>Returns:</B><DD>the subclass appropriate for the current Java version |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ClassNotFoundException.html" title="class or interface in java.lang">ClassNotFoundException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="isAnnotation(java.lang.Class)"><!-- --></A><H3> |
| isAnnotation</H3> |
| <PRE> |
| public static boolean <B>isAnnotation</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> cls)</PRE> |
| <DL> |
| <DD>Return true if the given type is an annotation. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="isEnumeration(java.lang.Class)"><!-- --></A><H3> |
| isEnumeration</H3> |
| <PRE> |
| public static boolean <B>isEnumeration</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A> cls)</PRE> |
| <DL> |
| <DD>Return true if the given type is an enumeration. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getParameterizedTypes(java.lang.reflect.Field)"><!-- --></A><H3> |
| getParameterizedTypes</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>[] <B>getParameterizedTypes</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/reflect/Field.html" title="class or interface in java.lang.reflect">Field</A> f)</PRE> |
| <DL> |
| <DD>Collects the parameterized type declarations for a given field. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getParameterizedTypes(java.lang.reflect.Method)"><!-- --></A><H3> |
| getParameterizedTypes</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Class.html" title="class or interface in java.lang">Class</A>[] <B>getParameterizedTypes</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/reflect/Method.html" title="class or interface in java.lang.reflect">Method</A> meth)</PRE> |
| <DL> |
| <DD>Collects the parameterized return type declarations for a given method. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="transferStackTrace(java.lang.Throwable, java.lang.Throwable)"><!-- --></A><H3> |
| transferStackTrace</H3> |
| <PRE> |
| public static boolean <B>transferStackTrace</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> from, |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> to)</PRE> |
| <DL> |
| <DD>Transfer the stack from one throwable to another, or return |
| false if it cannot be done, possibly due to an unsupported Java version. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getCause(java.lang.Throwable)"><!-- --></A><H3> |
| getCause</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> <B>getCause</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> ex)</PRE> |
| <DL> |
| <DD>Return the cause of the given throwable. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="initCause(java.lang.Throwable, java.lang.Throwable)"><!-- --></A><H3> |
| initCause</H3> |
| <PRE> |
| public static <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> <B>initCause</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> ex, |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Throwable.html" title="class or interface in java.lang">Throwable</A> cause)</PRE> |
| <DL> |
| <DD>Set the cause of the given throwable. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="main(java.lang.String[])"><!-- --></A><H3> |
| main</H3> |
| <PRE> |
| public static void <B>main</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A>[] args)</PRE> |
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