evaluation.html

ONGL学习的好书,介绍ONGL的相关知识

<A NAME="getNode()"><!-- --></A><H3>
getNode</H3>
<PRE>
public <A HREF="../ognl/SimpleNode.html" title="class in ognl">SimpleNode</A> <B>getNode</B>()</PRE>
<DL>
<DD>Returns the <code>SimpleNode</code> for this <code>Evaluation</code>
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setNode(ognl.SimpleNode)"><!-- --></A><H3>
setNode</H3>
<PRE>
public void <B>setNode</B>(<A HREF="../ognl/SimpleNode.html" title="class in ognl">SimpleNode</A>&nbsp;value)</PRE>
<DL>
<DD>Sets the node of the evaluation.  Normally applications do not need to
        set this.  Notable exceptions to this rule are custom evaluators that
        choose between navigable objects (as in a multi-root evaluator where
        the navigable node is chosen at runtime).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getSource()"><!-- --></A><H3>
getSource</H3>
<PRE>
public java.lang.Object <B>getSource</B>()</PRE>
<DL>
<DD>Returns the source object on which this Evaluation operated.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setSource(java.lang.Object)"><!-- --></A><H3>
setSource</H3>
<PRE>
public void <B>setSource</B>(java.lang.Object&nbsp;value)</PRE>
<DL>
<DD>Sets the source of the evaluation.  Normally applications do not need to
        set this.  Notable exceptions to this rule are custom evaluators that
        choose between navigable objects (as in a multi-root evaluator where
        the navigable node is chosen at runtime).
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="isSetOperation()"><!-- --></A><H3>
isSetOperation</H3>
<PRE>
public boolean <B>isSetOperation</B>()</PRE>
<DL>
<DD>Returns true if this Evaluation represents a set operation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setSetOperation(boolean)"><!-- --></A><H3>
setSetOperation</H3>
<PRE>
public void <B>setSetOperation</B>(boolean&nbsp;value)</PRE>
<DL>
<DD>Marks the Evaluation as a set operation if the value is true, else
        marks it as a get operation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getResult()"><!-- --></A><H3>
getResult</H3>
<PRE>
public java.lang.Object <B>getResult</B>()</PRE>
<DL>
<DD>Returns the result of the Evaluation, or null if it was a set operation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setResult(java.lang.Object)"><!-- --></A><H3>
setResult</H3>
<PRE>
public void <B>setResult</B>(java.lang.Object&nbsp;value)</PRE>
<DL>
<DD>Sets the result of the Evaluation.  This method is normally only used
        interally and should not be set without knowledge of what you are doing.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getException()"><!-- --></A><H3>
getException</H3>
<PRE>
public java.lang.Throwable <B>getException</B>()</PRE>
<DL>
<DD>Returns the exception that occurred as a result of evaluating the
        Evaluation, or null if no exception occurred.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="setException(java.lang.Throwable)"><!-- --></A><H3>
setException</H3>
<PRE>
public void <B>setException</B>(java.lang.Throwable&nbsp;value)</PRE>
<DL>
<DD>Sets the exception that occurred as a result of evaluating the
        Evaluation.  This method is normally only used interally and
        should not be set without knowledge of what you are doing.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getParent()"><!-- --></A><H3>
getParent</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getParent</B>()</PRE>
<DL>
<DD>Returns the parent evaluation of this evaluation.  If this returns
        null then it is is the root evaluation of a tree.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getNext()"><!-- --></A><H3>
getNext</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getNext</B>()</PRE>
<DL>
<DD>Returns the next sibling of this evaluation.  Returns null if
        this is the last in a chain of evaluations.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getPrevious()"><!-- --></A><H3>
getPrevious</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getPrevious</B>()</PRE>
<DL>
<DD>Returns the previous sibling of this evaluation.  Returns null if
        this is the first in a chain of evaluations.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFirstChild()"><!-- --></A><H3>
getFirstChild</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getFirstChild</B>()</PRE>
<DL>
<DD>Returns the first child of this evaluation.  Returns null if
        there are no children.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLastChild()"><!-- --></A><H3>
getLastChild</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getLastChild</B>()</PRE>
<DL>
<DD>Returns the last child of this evaluation.  Returns null if
        there are no children.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getFirstDescendant()"><!-- --></A><H3>
getFirstDescendant</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getFirstDescendant</B>()</PRE>
<DL>
<DD>Gets the first descendent.  In any Evaluation tree this will the
        Evaluation that was first executed.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getLastDescendant()"><!-- --></A><H3>
getLastDescendant</H3>
<PRE>
public <A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A> <B>getLastDescendant</B>()</PRE>
<DL>
<DD>Gets the last descendent.  In any Evaluation tree this will the
        Evaluation that was most recently executing.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="addChild(ognl.Evaluation)"><!-- --></A><H3>
addChild</H3>
<PRE>
public void <B>addChild</B>(<A HREF="../ognl/Evaluation.html" title="class in ognl">Evaluation</A>&nbsp;child)</PRE>
<DL>
<DD>Adds a child to the list of children of this evaluation.  The
        parent of the child is set to the receiver and the children
        references are modified in the receiver to reflect the new child.
        The lastChild of the receiver is set to the child, and the
        firstChild is set also if child is the first (or only) child.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="init(ognl.SimpleNode, java.lang.Object, boolean)"><!-- --></A><H3>
init</H3>
<PRE>
public void <B>init</B>(<A HREF="../ognl/SimpleNode.html" title="class in ognl">SimpleNode</A>&nbsp;node,
                 java.lang.Object&nbsp;source,
                 boolean&nbsp;setOperation)</PRE>
<DL>
<DD>Reinitializes this Evaluation to the parameters specified.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="reset()"><!-- --></A><H3>
reset</H3>
<PRE>
public void <B>reset</B>()</PRE>
<DL>
<DD>Resets this Evaluation to the initial state.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString(boolean, boolean, java.lang.String)"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>(boolean&nbsp;compact,
                                 boolean&nbsp;showChildren,
                                 java.lang.String&nbsp;depth)</PRE>
<DL>
<DD>Produces a String value for the Evaluation.  If compact is
        true then a more compact form of the description only including
        the node type and unique identifier is shown, else a full
        description including source and result are shown.  If showChildren
        is true the child evaluations are printed using the depth string
        given as a prefix.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString(boolean, java.lang.String)"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>(boolean&nbsp;compact,
                                 java.lang.String&nbsp;depth)</PRE>
<DL>
<DD>Produces a String value for the Evaluation.  If compact is
        true then a more compact form of the description only including
        the node type and unique identifier is shown, else a full
        description including source and result are shown.  Child
        evaluations are printed using the depth string given as a prefix.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD>Returns a String description of the Evaluation.
<P>
<DD><DL>
</DL>
</DD>
</DL>
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