logicfilterimpl.html

Geotools是一个开源的Java GIS工具包,可利用它来开发符合标准的地理信息系统。Geotools提供了OGC(Open Geospatial Consortium)规范的一个实现来作为他们的

<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/LogicFilter.html#addFilter(org.geotools.filter.Filter)">addFilter</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/LogicFilter.html" title="interface in org.geotools.filter">LogicFilter</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - Specified filter to add to the sub filter list.
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../org/geotools/filter/IllegalFilterException.html" title="class in org.geotools.filter">IllegalFilterException</A></CODE> - Does not conform to logic filter
         structure<DT><B>'TODO:'</B></DT>
  <DD>REVISIT: make all filters immutable.  This should return a new
       filter.</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFilterIterator()"><!-- --></A><H3>
getFilterIterator</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/util/Iterator.html" title="class or interface in java.util">Iterator</A> <B>getFilterIterator</B>()</PRE>
<DL>
<DD>Gets an iterator for the filters held by this logic filter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/LogicFilter.html#getFilterIterator()">getFilterIterator</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/LogicFilter.html" title="interface in org.geotools.filter">LogicFilter</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>the iterator of the filters.</DL>
</DD>
</DL>
<HR>

<A NAME="evaluate(org.geotools.feature.Feature)"><!-- --></A><H3>
evaluate</H3>
<PRE>
public abstract boolean <B>evaluate</B>(<A HREF="../../../org/geotools/feature/Feature.html" title="interface in org.geotools.feature">Feature</A>&nbsp;feature)</PRE>
<DL>
<DD>Determines whether or not a given feature is 'inside' this filter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/Filter.html#evaluate(org.geotools.feature.Feature)">evaluate</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/FilterAbstract.html#evaluate(org.geotools.feature.Feature)">evaluate</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/FilterAbstract.html" title="class in org.geotools.filter">FilterAbstract</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>feature</CODE> - Specified feature to examine.
<DT><B>Returns:</B><DD>Flag confirming whether or not this feature is inside the
         filter.</DL>
</DD>
</DL>
<HR>

<A NAME="or(org.geotools.filter.Filter)"><!-- --></A><H3>
or</H3>
<PRE>
public <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A> <B>or</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>Implements a logical OR with this filter and returns the merged filter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/Filter.html#or(org.geotools.filter.Filter)">or</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html#or(org.geotools.filter.Filter)">or</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html" title="class in org.geotools.filter">BinaryLogicAbstract</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - Parent of the filter: must implement GMLHandlerGeometry.
<DT><B>Returns:</B><DD>ORed filter.<DT><B>'TODO:'</B></DT>
  <DD>REVISIT: make immutable, should not modify the subfilters of the
       filter being ored.</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="and(org.geotools.filter.Filter)"><!-- --></A><H3>
and</H3>
<PRE>
public <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A> <B>and</B>(<A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A>&nbsp;filter)</PRE>
<DL>
<DD>Implements a logical AND with this filter and returns the merged filter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/Filter.html#and(org.geotools.filter.Filter)">and</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html#and(org.geotools.filter.Filter)">and</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html" title="class in org.geotools.filter">BinaryLogicAbstract</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>filter</CODE> - Parent of the filter: must implement GMLHandlerGeometry.
<DT><B>Returns:</B><DD>ANDed filter.<DT><B>'TODO:'</B></DT>
  <DD>REVISIT: make immutable, should not modify the subfilters of the
       filter being anded.</DD>
</DL>
</DD>
</DL>
<HR>

<A NAME="not()"><!-- --></A><H3>
not</H3>
<PRE>
public <A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A> <B>not</B>()</PRE>
<DL>
<DD>Implements a logical NOT with this filter and returns the merged filter.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/geotools/filter/Filter.html#not()">not</A></CODE> in interface <CODE><A HREF="../../../org/geotools/filter/Filter.html" title="interface in org.geotools.filter">Filter</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html#not()">not</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/BinaryLogicAbstract.html" title="class in org.geotools.filter">BinaryLogicAbstract</A></CODE></DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>NOTed filter.</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>toString</B>()</PRE>
<DL>
<DD>Returns a string representation of this filter.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>String representation of the logic filter.</DL>
</DD>
</DL>
<HR>

<A NAME="equals(java.lang.Object)"><!-- --></A><H3>
equals</H3>
<PRE>
public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;obj)</PRE>
<DL>
<DD>Compares this filter to the specified object.  Returns true  if the
 passed in object is the same as this filter.  Checks  to make sure the
 filter types are the same, and then checks that the subFilters lists
 are the same size and that one list contains the other.  This means
 that logic filters with different internal orders of subfilters are
 equal.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>obj</CODE> - - the object to compare this LogicFilter against.
<DT><B>Returns:</B><DD>true if specified object is equal to this filter; false
         otherwise.</DL>
</DD>
</DL>
<HR>

<A NAME="hashCode()"><!-- --></A><H3>
hashCode</H3>
<PRE>
public int <B>hashCode</B>()</PRE>
<DL>
<DD>Override of hashCode method.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>

<DT><B>Returns:</B><DD>a code to hash this object by.</DL>
</DD>
</DL>
<HR>

<A NAME="accept(org.opengis.filter.FilterVisitor, java.lang.Object)"><!-- --></A><H3>
accept</H3>
<PRE>
public abstract <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> <B>accept</B>(FilterVisitor&nbsp;visitor,
                              <A HREF="http://java.sun.com/j2se/1.4/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>&nbsp;extraData)</PRE>
<DL>
<DD>Used by FilterVisitors to perform some action on this filter instance.
 Typicaly used by Filter decoders, but may also be used by any thing
 which needs infomration from filter structure. Implementations should
 always call: visitor.visit(this); It is importatant that this is not
 left to a parent class unless the parents API is identical.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>accept</CODE> in interface <CODE>Filter</CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/geotools/filter/FilterAbstract.html#accept(org.opengis.filter.FilterVisitor, java.lang.Object)">accept</A></CODE> in class <CODE><A HREF="../../../org/geotools/filter/FilterAbstract.html" title="class in org.geotools.filter">FilterAbstract</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>visitor</CODE> - The visitor which requires access to this filter, the
        method must call visitor.visit(this);</DL>
</DD>
</DL>
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