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FilterValue (OpenJPA 1.0.1 API) | |
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<FONT SIZE="-1"> | |
org.apache.openjpa.jdbc.kernel.exps</FONT> | |
<BR> | |
Interface FilterValue</H2> | |
<HR> | |
<DL> | |
<DT><PRE>public interface <B>FilterValue</B></DL> | |
</PRE> | |
<P> | |
The simplified public view of any non-operator in a query filter, | |
including constants, variables, and object fields. | |
<P> | |
<P> | |
<DL> | |
<DT><B>Author:</B></DT> | |
<DD>Abe White</DD> | |
</DL> | |
<HR> | |
<P> | |
<!-- ========== METHOD SUMMARY =========== --> | |
<A NAME="method_summary"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
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<B>Method Summary</B></FONT></TH> | |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> void</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#appendTo(org.apache.openjpa.jdbc.sql.SQLBuffer)">appendTo</A></B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</A> buf)</CODE> | |
<BR> | |
Append the first SQL element for this value to the given buffer.</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/jdbc/kernel/exps/FilterValue.html#appendTo(org.apache.openjpa.jdbc.sql.SQLBuffer, int)">appendTo</A></B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</A> buf, | |
int index)</CODE> | |
<BR> | |
Append the <code>index</code>th SQL element for this value to the | |
given buffer.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getClassMapping()">getClassMapping</A></B>()</CODE> | |
<BR> | |
If this is a path to a persistent object, return its class mapping, | |
else return null.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getColumnAlias(org.apache.openjpa.jdbc.schema.Column)">getColumnAlias</A></B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</A> col)</CODE> | |
<BR> | |
Return the alias to use for the given column (this includes the table | |
alias prefix, if any).</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getColumnAlias(java.lang.String, org.apache.openjpa.jdbc.schema.Table)">getColumnAlias</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> col, | |
<A HREF="../../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> table)</CODE> | |
<BR> | |
Return the alias to use for the given column (this includes the table | |
alias prefix, if any).</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../../org/apache/openjpa/jdbc/meta/FieldMapping.html" title="class in org.apache.openjpa.jdbc.meta">FieldMapping</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getFieldMapping()">getFieldMapping</A></B>()</CODE> | |
<BR> | |
If this is a path to a persistent field, return its mapping, else | |
return null.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getSQLValue()">getSQLValue</A></B>()</CODE> | |
<BR> | |
If this is a constant, returns its value as it would be represented | |
in the database in this context, else return null.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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/jdbc/kernel/exps/FilterValue.html#getType()">getType</A></B>()</CODE> | |
<BR> | |
Return the expected type of this value.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getValue()">getValue</A></B>()</CODE> | |
<BR> | |
If this is a constant, return its value, else return null.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../../org/apache/openjpa/meta/XMLMetaData.html" title="interface in org.apache.openjpa.meta">XMLMetaData</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getXmlMapping()">getXmlMapping</A></B>()</CODE> | |
<BR> | |
If this is an XPath, return XML mapping metadata, | |
else return null;</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> org.apache.openjpa.jdbc.kernel.exps.PCPath</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#getXPath()">getXPath</A></B>()</CODE> | |
<BR> | |
If this is an XPath, return it, | |
else return null;</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/jdbc/kernel/exps/FilterValue.html#isConstant()">isConstant</A></B>()</CODE> | |
<BR> | |
Return true if this value represents a literal or parameter.</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/jdbc/kernel/exps/FilterValue.html#isPath()">isPath</A></B>()</CODE> | |
<BR> | |
Return true if this value represents a persistent field traversal, | |
such as 'this', 'address.street', or 'projectVariable.title'.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> int</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#length()">length</A></B>()</CODE> | |
<BR> | |
Return the number of SQL elements in this value.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <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></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/jdbc/kernel/exps/FilterValue.html#toDataStoreValue(java.lang.Object)">toDataStoreValue</A></B>(<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> val)</CODE> | |
<BR> | |
Transform the given value into its datastore equivalent.</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="getType()"><!-- --></A><H3> | |
getType</H3> | |
<PRE> | |
<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>getType</B>()</PRE> | |
<DL> | |
<DD>Return the expected type of this value. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="length()"><!-- --></A><H3> | |
length</H3> | |
<PRE> | |
int <B>length</B>()</PRE> | |
<DL> | |
<DD>Return the number of SQL elements in this value. Usually 1. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="appendTo(org.apache.openjpa.jdbc.sql.SQLBuffer)"><!-- --></A><H3> | |
appendTo</H3> | |
<PRE> | |
void <B>appendTo</B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</A> buf)</PRE> | |
<DL> | |
<DD>Append the first SQL element for this value to the given buffer. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="appendTo(org.apache.openjpa.jdbc.sql.SQLBuffer, int)"><!-- --></A><H3> | |
appendTo</H3> | |
<PRE> | |
void <B>appendTo</B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/sql/SQLBuffer.html" title="class in org.apache.openjpa.jdbc.sql">SQLBuffer</A> buf, | |
int index)</PRE> | |
<DL> | |
<DD>Append the <code>index</code>th SQL element for this value to the | |
given buffer. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getColumnAlias(org.apache.openjpa.jdbc.schema.Column)"><!-- --></A><H3> | |
getColumnAlias</H3> | |
<PRE> | |
<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> <B>getColumnAlias</B>(<A HREF="../../../../../../org/apache/openjpa/jdbc/schema/Column.html" title="class in org.apache.openjpa.jdbc.schema">Column</A> col)</PRE> | |
<DL> | |
<DD>Return the alias to use for the given column (this includes the table | |
alias prefix, if any). | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getColumnAlias(java.lang.String, org.apache.openjpa.jdbc.schema.Table)"><!-- --></A><H3> | |
getColumnAlias</H3> | |
<PRE> | |
<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> <B>getColumnAlias</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> col, | |
<A HREF="../../../../../../org/apache/openjpa/jdbc/schema/Table.html" title="class in org.apache.openjpa.jdbc.schema">Table</A> table)</PRE> | |
<DL> | |
<DD>Return the alias to use for the given column (this includes the table | |
alias prefix, if any). | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="toDataStoreValue(java.lang.Object)"><!-- --></A><H3> | |
toDataStoreValue</H3> | |
<PRE> | |
<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>toDataStoreValue</B>(<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> val)</PRE> | |
<DL> | |
<DD>Transform the given value into its datastore equivalent. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="isConstant()"><!-- --></A><H3> | |
isConstant</H3> | |
<PRE> | |
boolean <B>isConstant</B>()</PRE> | |
<DL> | |
<DD>Return true if this value represents a literal or parameter. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getValue()"><!-- --></A><H3> | |
getValue</H3> | |
<PRE> | |
<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>getValue</B>()</PRE> | |
<DL> | |
<DD>If this is a constant, return its value, else return null. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getSQLValue()"><!-- --></A><H3> | |
getSQLValue</H3> | |
<PRE> | |
<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>getSQLValue</B>()</PRE> | |
<DL> | |
<DD>If this is a constant, returns its value as it would be represented | |
in the database in this context, else return null. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="isPath()"><!-- --></A><H3> | |
isPath</H3> | |
<PRE> | |
boolean <B>isPath</B>()</PRE> | |
<DL> | |
<DD>Return true if this value represents a persistent field traversal, | |
such as 'this', 'address.street', or 'projectVariable.title'. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getClassMapping()"><!-- --></A><H3> | |
getClassMapping</H3> | |
<PRE> | |
<A HREF="../../../../../../org/apache/openjpa/jdbc/meta/ClassMapping.html" title="class in org.apache.openjpa.jdbc.meta">ClassMapping</A> <B>getClassMapping</B>()</PRE> | |
<DL> | |
<DD>If this is a path to a persistent object, return its class mapping, | |
else return null. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getFieldMapping()"><!-- --></A><H3> | |
getFieldMapping</H3> | |
<PRE> | |
<A HREF="../../../../../../org/apache/openjpa/jdbc/meta/FieldMapping.html" title="class in org.apache.openjpa.jdbc.meta">FieldMapping</A> <B>getFieldMapping</B>()</PRE> | |
<DL> | |
<DD>If this is a path to a persistent field, return its mapping, else | |
return null. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getXPath()"><!-- --></A><H3> | |
getXPath</H3> | |
<PRE> | |
org.apache.openjpa.jdbc.kernel.exps.PCPath <B>getXPath</B>()</PRE> | |
<DL> | |
<DD>If this is an XPath, return it, | |
else return null; | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getXmlMapping()"><!-- --></A><H3> | |
getXmlMapping</H3> | |
<PRE> | |
<A HREF="../../../../../../org/apache/openjpa/meta/XMLMetaData.html" title="interface in org.apache.openjpa.meta">XMLMetaData</A> <B>getXmlMapping</B>()</PRE> | |
<DL> | |
<DD>If this is an XPath, return XML mapping metadata, | |
else return null; | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
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