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<div class="subTitle">org.joda.time.field</div>
<h2 title="Class FieldUtils" class="title">Class FieldUtils</h2>
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<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<li>org.joda.time.field.FieldUtils</li>
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<pre>public class <span class="strong">FieldUtils</span>
extends <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">General utilities that don't fit elsewhere.
<p>
FieldUtils is thread-safe and immutable.</div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>1.0</dd></dl>
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<h3>Method Summary</h3>
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<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#equals(java.lang.Object,%20java.lang.Object)">equals</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object1,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object2)</code>
<div class="block">Compares two objects as equals handling null.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#getWrappedValue(int,%20int,%20int)">getWrappedValue</a></strong>(int value,
int minValue,
int maxValue)</code>
<div class="block">Utility method that ensures the given value lies within the field's
legal value range.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#getWrappedValue(int,%20int,%20int,%20int)">getWrappedValue</a></strong>(int currentValue,
int wrapValue,
int minValue,
int maxValue)</code>
<div class="block">Utility method used by addWrapField implementations to ensure the new
value lies within the field's legal value range.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeAdd(int,%20int)">safeAdd</a></strong>(int val1,
int val2)</code>
<div class="block">Add two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeAdd(long,%20long)">safeAdd</a></strong>(long val1,
long val2)</code>
<div class="block">Add two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeDivide(long,%20long)">safeDivide</a></strong>(long dividend,
long divisor)</code>
<div class="block">Divides the dividend by the divisor throwing an exception if
overflow occurs or the divisor is zero.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeMultiply(int,%20int)">safeMultiply</a></strong>(int val1,
int val2)</code>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeMultiply(long,%20int)">safeMultiply</a></strong>(long val1,
int val2)</code>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeMultiply(long,%20long)">safeMultiply</a></strong>(long val1,
long val2)</code>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeMultiplyToInt(long,%20long)">safeMultiplyToInt</a></strong>(long val1,
long val2)</code>
<div class="block">Multiply two values to return an int throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeNegate(int)">safeNegate</a></strong>(int value)</code>
<div class="block">Negates the input throwing an exception if it can't negate it.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeSubtract(long,%20long)">safeSubtract</a></strong>(long val1,
long val2)</code>
<div class="block">Subtracts two values throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#safeToInt(long)">safeToInt</a></strong>(long value)</code>
<div class="block">Casts to an int throwing an exception if overflow occurs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#verifyValueBounds(org.joda.time.DateTimeField,%20int,%20int,%20int)">verifyValueBounds</a></strong>(<a href="../../../../org/joda/time/DateTimeField.html" title="class in org.joda.time">DateTimeField</a> field,
int value,
int lowerBound,
int upperBound)</code>
<div class="block">Verify that input values are within specified bounds.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#verifyValueBounds(org.joda.time.DateTimeFieldType,%20int,%20int,%20int)">verifyValueBounds</a></strong>(<a href="../../../../org/joda/time/DateTimeFieldType.html" title="class in org.joda.time">DateTimeFieldType</a> fieldType,
int value,
int lowerBound,
int upperBound)</code>
<div class="block">Verify that input values are within specified bounds.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../org/joda/time/field/FieldUtils.html#verifyValueBounds(java.lang.String,%20int,%20int,%20int)">verifyValueBounds</a></strong>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName,
int value,
int lowerBound,
int upperBound)</code>
<div class="block">Verify that input values are within specified bounds.</div>
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<h3>Methods inherited from class java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h3>Method Detail</h3>
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<h4>safeNegate</h4>
<pre>public static int safeNegate(int value)</pre>
<div class="block">Negates the input throwing an exception if it can't negate it.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to negate</dd>
<dt><span class="strong">Returns:</span></dt><dd>the negated value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is Integer.MIN_VALUE</dd><dt><span class="strong">Since:</span></dt>
<dd>1.1</dd></dl>
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<h4>safeAdd</h4>
<pre>public static int safeAdd(int val1,
int val2)</pre>
<div class="block">Add two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<pre>public static long safeAdd(long val1,
long val2)</pre>
<div class="block">Add two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<h4>safeSubtract</h4>
<pre>public static long safeSubtract(long val1,
long val2)</pre>
<div class="block">Subtracts two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value, to be taken away from</dd><dd><code>val2</code> - the second value, the amount to take away</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<h4>safeMultiply</h4>
<pre>public static int safeMultiply(int val1,
int val2)</pre>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd><dt><span class="strong">Since:</span></dt>
<dd>1.2</dd></dl>
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<h4>safeMultiply</h4>
<pre>public static long safeMultiply(long val1,
int val2)</pre>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd><dt><span class="strong">Since:</span></dt>
<dd>1.2</dd></dl>
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<h4>safeMultiply</h4>
<pre>public static long safeMultiply(long val1,
long val2)</pre>
<div class="block">Multiply two values throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<h4>safeDivide</h4>
<pre>public static long safeDivide(long dividend,
long divisor)</pre>
<div class="block">Divides the dividend by the divisor throwing an exception if
overflow occurs or the divisor is zero.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>dividend</code> - the dividend</dd><dd><code>divisor</code> - the divisor</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the operation overflows or the divisor is zero</dd></dl>
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<h4>safeToInt</h4>
<pre>public static int safeToInt(long value)</pre>
<div class="block">Casts to an int throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the value as an int</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<pre>public static int safeMultiplyToInt(long val1,
long val2)</pre>
<div class="block">Multiply two values to return an int throwing an exception if overflow occurs.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>val1</code> - the first value</dd><dd><code>val2</code> - the second value</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new total</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/ArithmeticException.html?is-external=true" title="class or interface in java.lang">ArithmeticException</a></code> - if the value is too big or too small</dd></dl>
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<h4>verifyValueBounds</h4>
<pre>public static void verifyValueBounds(<a href="../../../../org/joda/time/DateTimeField.html" title="class in org.joda.time">DateTimeField</a> field,
int value,
int lowerBound,
int upperBound)</pre>
<div class="block">Verify that input values are within specified bounds.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to check</dd><dd><code>lowerBound</code> - the lower bound allowed for value</dd><dd><code>upperBound</code> - the upper bound allowed for value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/joda/time/IllegalFieldValueException.html" title="class in org.joda.time">IllegalFieldValueException</a></code> - if value is not in the specified bounds</dd></dl>
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<a name="verifyValueBounds(org.joda.time.DateTimeFieldType, int, int, int)">
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<h4>verifyValueBounds</h4>
<pre>public static void verifyValueBounds(<a href="../../../../org/joda/time/DateTimeFieldType.html" title="class in org.joda.time">DateTimeFieldType</a> fieldType,
int value,
int lowerBound,
int upperBound)</pre>
<div class="block">Verify that input values are within specified bounds.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to check</dd><dd><code>lowerBound</code> - the lower bound allowed for value</dd><dd><code>upperBound</code> - the upper bound allowed for value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/joda/time/IllegalFieldValueException.html" title="class in org.joda.time">IllegalFieldValueException</a></code> - if value is not in the specified bounds</dd><dt><span class="strong">Since:</span></dt>
<dd>1.1</dd></dl>
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</ul>
<a name="verifyValueBounds(java.lang.String, int, int, int)">
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<h4>verifyValueBounds</h4>
<pre>public static void verifyValueBounds(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> fieldName,
int value,
int lowerBound,
int upperBound)</pre>
<div class="block">Verify that input values are within specified bounds.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to check</dd><dd><code>lowerBound</code> - the lower bound allowed for value</dd><dd><code>upperBound</code> - the upper bound allowed for value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../org/joda/time/IllegalFieldValueException.html" title="class in org.joda.time">IllegalFieldValueException</a></code> - if value is not in the specified bounds</dd></dl>
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<h4>getWrappedValue</h4>
<pre>public static int getWrappedValue(int currentValue,
int wrapValue,
int minValue,
int maxValue)</pre>
<div class="block">Utility method used by addWrapField implementations to ensure the new
value lies within the field's legal value range.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>currentValue</code> - the current value of the data, which may lie outside
the wrapped value range</dd><dd><code>wrapValue</code> - the value to add to current value before
wrapping. This may be negative.</dd><dd><code>minValue</code> - the wrap range minimum value.</dd><dd><code>maxValue</code> - the wrap range maximum value. This must be
greater than minValue (checked by the method).</dd>
<dt><span class="strong">Returns:</span></dt><dd>the wrapped value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if minValue is greater
than or equal to maxValue</dd></dl>
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<h4>getWrappedValue</h4>
<pre>public static int getWrappedValue(int value,
int minValue,
int maxValue)</pre>
<div class="block">Utility method that ensures the given value lies within the field's
legal value range.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>value</code> - the value to fit into the wrapped value range</dd><dd><code>minValue</code> - the wrap range minimum value.</dd><dd><code>maxValue</code> - the wrap range maximum value. This must be
greater than minValue (checked by the method).</dd>
<dt><span class="strong">Returns:</span></dt><dd>the wrapped value</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if minValue is greater
than or equal to maxValue</dd></dl>
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<h4>equals</h4>
<pre>public static boolean equals(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object1,
<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a> object2)</pre>
<div class="block">Compares two objects as equals handling null.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>object1</code> - the first object</dd><dd><code>object2</code> - the second object</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if equal</dd><dt><span class="strong">Since:</span></dt>
<dd>1.4</dd></dl>
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