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<div class="subTitle">org.apache.commons.beanutils.expression</div>
<h2 title="Class DefaultResolver" class="title">Class DefaultResolver</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></dd>
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<pre>public class <span class="typeNameLabel">DefaultResolver</span>
extends <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></pre>
<div class="block">Default Property Name Expression <a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression"><code>Resolver</code></a> Implementation.
<p>
This class assists in resolving property names in the following five formats,
with the layout of an identifying String in parentheses:
<ul>
<li><strong>Simple (<code>name</code>)</strong> - The specified
<code>name</code> identifies an individual property of a particular
JavaBean. The name of the actual getter or setter method to be used
is determined using standard JavaBeans instrospection, so that (unless
overridden by a <code>BeanInfo</code> class, a property named "xyz"
will have a getter method named <code>getXyz()</code> or (for boolean
properties only) <code>isXyz()</code>, and a setter method named
<code>setXyz()</code>.</li>
<li><strong>Nested (<code>name1.name2.name3</code>)</strong> The first
name element is used to select a property getter, as for simple
references above. The object returned for this property is then
consulted, using the same approach, for a property getter for a
property named <code>name2</code>, and so on. The property value that
is ultimately retrieved or modified is the one identified by the
last name element.</li>
<li><strong>Indexed (<code>name[index]</code>)</strong> - The underlying
property value is assumed to be an array, or this JavaBean is assumed
to have indexed property getter and setter methods. The appropriate
(zero-relative) entry in the array is selected. <code>List</code>
objects are now also supported for read/write. You simply need to define
a getter that returns the <code>List</code></li>
<li><strong>Mapped (<code>name(key)</code>)</strong> - The JavaBean
is assumed to have an property getter and setter methods with an
additional attribute of type <code>java.lang.String</code>.</li>
<li><strong>Combined (<code>name1.name2[index].name3(key)</code>)</strong> -
Combining mapped, nested, and indexed references is also
supported.</li>
</ul></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.8.0</dd>
<dt><span class="simpleTagLabel">Version:</span></dt>
<dd>$Id: DefaultResolver.java 1632171 2014-10-15 20:15:17Z ggregory $</dd>
</dl>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#DefaultResolver--">DefaultResolver</a></span>()</code>
<div class="block">Default Constructor.</div>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#getIndex-java.lang.String-">getIndex</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Return the index value from the property expression or -1.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#getKey-java.lang.String-">getKey</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Return the map key from the property expression or <code>null</code>.</div>
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<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#getProperty-java.lang.String-">getProperty</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Return the property name from the property expression.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#hasNested-java.lang.String-">hasNested</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Indicates whether or not the expression
contains nested property expressions or not.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#isIndexed-java.lang.String-">isIndexed</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Indicate whether the expression is for an indexed property or not.</div>
</td>
</tr>
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<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#isMapped-java.lang.String-">isMapped</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Indicate whether the expression is for a mapped property or not.</div>
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<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#next-java.lang.String-">next</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Extract the next property expression from the
current expression.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/commons/beanutils/expression/DefaultResolver.html#remove-java.lang.String-">remove</a></span>(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</code>
<div class="block">Remove the last property expresson from the
current expression.</div>
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<h4>DefaultResolver</h4>
<pre>public DefaultResolver()</pre>
<div class="block">Default Constructor.</div>
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<h4>getIndex</h4>
<pre>public int getIndex(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Return the index value from the property expression or -1.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#getIndex-java.lang.String-">getIndex</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The index value or -1 if the property is not indexed</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If the indexed property is illegally
formed or has an invalid (non-numeric) value.</dd>
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<h4>getKey</h4>
<pre>public <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getKey(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Return the map key from the property expression or <code>null</code>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#getKey-java.lang.String-">getKey</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The index value</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/6/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - If the mapped property is illegally formed.</dd>
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<h4>getProperty</h4>
<pre>public <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> getProperty(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Return the property name from the property expression.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#getProperty-java.lang.String-">getProperty</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The property name</dd>
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<h4>hasNested</h4>
<pre>public boolean hasNested(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Indicates whether or not the expression
contains nested property expressions or not.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#hasNested-java.lang.String-">hasNested</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The next property expression</dd>
</dl>
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<pre>public boolean isIndexed(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Indicate whether the expression is for an indexed property or not.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#isIndexed-java.lang.String-">isIndexed</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the expresion is indexed,
otherwise <code>false</code></dd>
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<pre>public boolean isMapped(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Indicate whether the expression is for a mapped property or not.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#isMapped-java.lang.String-">isMapped</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the expresion is mapped,
otherwise <code>false</code></dd>
</dl>
</li>
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<h4>next</h4>
<pre>public <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> next(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Extract the next property expression from the
current expression.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#next-java.lang.String-">next</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The next property expression</dd>
</dl>
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<h4>remove</h4>
<pre>public <a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> remove(<a href="http://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> expression)</pre>
<div class="block">Remove the last property expresson from the
current expression.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html#remove-java.lang.String-">remove</a></code> in interface <code><a href="../../../../../org/apache/commons/beanutils/expression/Resolver.html" title="interface in org.apache.commons.beanutils.expression">Resolver</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>expression</code> - The property expression</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The new expression value, with first property
expression removed - null if there are no more expressions</dd>
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