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| <H2> |
| <FONT SIZE="-1"> |
| org.apache.openjpa.persistence.jest</FONT> |
| <BR> |
| Interface JESTCommand</H2> |
| <DL> |
| <DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../org/apache/openjpa/persistence/jest/AbstractCommand.html" title="class in org.apache.openjpa.persistence.jest">AbstractCommand</A>, <A HREF="../../../../../org/apache/openjpa/persistence/jest/DomainCommand.html" title="class in org.apache.openjpa.persistence.jest">DomainCommand</A>, <A HREF="../../../../../org/apache/openjpa/persistence/jest/FindCommand.html" title="class in org.apache.openjpa.persistence.jest">FindCommand</A>, <A HREF="../../../../../org/apache/openjpa/persistence/jest/PropertiesCommand.html" title="class in org.apache.openjpa.persistence.jest">PropertiesCommand</A>, <A HREF="../../../../../org/apache/openjpa/persistence/jest/QueryCommand.html" title="class in org.apache.openjpa.persistence.jest">QueryCommand</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public interface <B>JESTCommand</B></DL> |
| </PRE> |
| |
| <P> |
| Interface for JEST commands. A JEST command denotes a JPA operation such as <code>find</code>, |
| <code>query</code> or <code>domain</code>. Besides signifying a JPA operation, a command may have |
| zero or more qualifiers and arguments. |
| <br> |
| A qualifier qualifies the action to be performed. For example, a <code>query</code> command may be qualified |
| to return a single instance as its result, or limit its result to first 20 instances etc. |
| <br> |
| An argument is an argument to the target JPA method. For example, <code>find</code> command has |
| arguments for the type of the instance and the primary key. A <code>query</code> command has the |
| query string as its argument. |
| <p> |
| A concrete command instance is an outcome of parsing a <A HREF="http://download.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html?is-external=true" title="class or interface in javax.servlet.http"><CODE>request</CODE></A>. |
| The <A HREF="http://download.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html?is-external=true#getPathInfo()" title="class or interface in javax.servlet.http"><CODE>path</CODE></A> segments are parsed for qualifiers. |
| The <A HREF="http://download.oracle.com/javaee/6/api/javax/servlet/http/HttpServletRequest.html?is-external=true#getQueryString()" title="class or interface in javax.servlet.http"><CODE>query string</CODE></A> is parsed for the arguments. |
| <p> |
| A JEST command often attaches special semantics to a standard URI syntax. For example, all JEST |
| URI enforces that the first segment of a servlet path denotes the command moniker e.g. the URI<br> |
| <code>http://www.jpa.com/jest/find/plan=myPlan?type=Person&1234</code><br> |
| with context root <code>http://www.jpa.com/jest</code> has the servlet path <code>/find/plan=myPlan</code> |
| and query string <code>type=Person&1234</code>. |
| <br> |
| The first path segment <code>find</code> will determine that the command is to <em>find</em> a |
| persistent entity of type <code>Person</code> and primary key <code>1234</code> using a fetch plan |
| named <code>myPlan</code>. |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>Author:</B></DT> |
| <DD>Pinaki Poddar</DD> |
| </DL> |
| <HR> |
| |
| <P> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| |
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| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE>static class</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.Format.html" title="enum in org.apache.openjpa.persistence.jest">JESTCommand.Format</A></B></CODE> |
| |
| <BR> |
| Supported format monikers.</TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== METHOD SUMMARY =========== --> |
| |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Method Summary</B></FONT></TH> |
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| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#getArgument(java.lang.String)">getArgument</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</CODE> |
| |
| <BR> |
| Get the value of this command's argument of the given name.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A><<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#getArguments()">getArguments</A></B>()</CODE> |
| |
| <BR> |
| Get this command's arguments.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="../../../../../org/apache/openjpa/persistence/jest/JPAServletContext.html" title="interface in org.apache.openjpa.persistence.jest">JPAServletContext</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#getExecutionContext()">getExecutionContext</A></B>()</CODE> |
| |
| <BR> |
| Get the execution context of this command.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#getQualifier(java.lang.String)">getQualifier</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</CODE> |
| |
| <BR> |
| Get the value of this command's qualifier of the given name.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A><<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#getQualifiers()">getQualifiers</A></B>()</CODE> |
| |
| <BR> |
| Get this command's qualifiers.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#hasArgument(java.lang.String)">hasArgument</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</CODE> |
| |
| <BR> |
| Affirm this command contains an argument of the given name.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#hasQualifier(java.lang.String)">hasQualifier</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</CODE> |
| |
| <BR> |
| Affirm this command contains an qualifier of the given name.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#parse()">parse</A></B>()</CODE> |
| |
| <BR> |
| Parse the given request to populate qualifiers and parameters of this command.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../org/apache/openjpa/persistence/jest/JESTCommand.html#process()">process</A></B>()</CODE> |
| |
| <BR> |
| Process the given request and write the output on to the given response in the given context.</TD> |
| </TR> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ============ 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="getExecutionContext()"><!-- --></A><H3> |
| getExecutionContext</H3> |
| <PRE> |
| <A HREF="../../../../../org/apache/openjpa/persistence/jest/JPAServletContext.html" title="interface in org.apache.openjpa.persistence.jest">JPAServletContext</A> <B>getExecutionContext</B>()</PRE> |
| <DL> |
| <DD>Get the execution context of this command. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the execution context. never null.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="parse()"><!-- --></A><H3> |
| parse</H3> |
| <PRE> |
| void <B>parse</B>() |
| throws <A HREF="../../../../../org/apache/openjpa/persistence/jest/ProcessingException.html" title="class in org.apache.openjpa.persistence.jest">ProcessingException</A></PRE> |
| <DL> |
| <DD>Parse the given request to populate qualifiers and parameters of this command. |
| A command can interpret and consume certain path segments or parameters of the |
| original request. During <CODE>processing</CODE> |
| phase, the parameters and qualifiers are accessed from the parsed command itself rather than |
| from the original HTTP request. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../../org/apache/openjpa/persistence/jest/ProcessingException.html" title="class in org.apache.openjpa.persistence.jest">ProcessingException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="process()"><!-- --></A><H3> |
| process</H3> |
| <PRE> |
| void <B>process</B>() |
| throws <A HREF="../../../../../org/apache/openjpa/persistence/jest/ProcessingException.html" title="class in org.apache.openjpa.persistence.jest">ProcessingException</A>, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Process the given request and write the output on to the given response in the given context. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="../../../../../org/apache/openjpa/persistence/jest/ProcessingException.html" title="class in org.apache.openjpa.persistence.jest">ProcessingException</A></CODE> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getArguments()"><!-- --></A><H3> |
| getArguments</H3> |
| <PRE> |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A><<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>> <B>getArguments</B>()</PRE> |
| <DL> |
| <DD>Get this command's arguments. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getArgument(java.lang.String)"><!-- --></A><H3> |
| getArgument</H3> |
| <PRE> |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getArgument</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</PRE> |
| <DL> |
| <DD>Get the value of this command's argument of the given name. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>null if the argument does not exist. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="hasArgument(java.lang.String)"><!-- --></A><H3> |
| hasArgument</H3> |
| <PRE> |
| boolean <B>hasArgument</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</PRE> |
| <DL> |
| <DD>Affirm this command contains an argument of the given name. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getQualifiers()"><!-- --></A><H3> |
| getQualifiers</H3> |
| <PRE> |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</A><<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>,<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>> <B>getQualifiers</B>()</PRE> |
| <DL> |
| <DD>Get this command's qualifiers. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="getQualifier(java.lang.String)"><!-- --></A><H3> |
| getQualifier</H3> |
| <PRE> |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getQualifier</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</PRE> |
| <DL> |
| <DD>Get the value of this command's qualifier of the given name. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>null if the qualifier does not exist. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="hasQualifier(java.lang.String)"><!-- --></A><H3> |
| hasQualifier</H3> |
| <PRE> |
| boolean <B>hasQualifier</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> key)</PRE> |
| <DL> |
| <DD>Affirm this command contains an qualifier of the given name. |
| <P> |
| <DD><DL> |
| |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</A></CODE> - if accessed prior to parsing.</DL> |
| </DD> |
| </DL> |
| <!-- ========= END OF CLASS DATA ========= --> |
| <HR> |
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