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BeanUtils provides an easy-to-use but flexible wrapper around reflection and introspection.

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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package org.apache.commons.beanutils;

/**
 * 

Utility methods for converting String scalar values to objects of the * specified Class, String arrays to arrays of the specified Class.

* *

For more details, see ConvertUtilsBean which provides the * implementations for these methods.

* * @author Craig R. McClanahan * @author Ralph Schaer * @author Chris Audley * @version $Revision: 556229 $ $Date: 2007-07-14 02:11:19 -0400 (Sat, 14 Jul 2007) $ * @see ConvertUtilsBean */ public class ConvertUtils { // ------------------------------------------------------ Static Properties /** * Gets the default value for Boolean conversions. * @return The default Boolean value * @deprecated Register replacement converters for Boolean.TYPE and * Boolean.class instead */ public static boolean getDefaultBoolean() { return (ConvertUtilsBean.getInstance().getDefaultBoolean()); } /** * Sets the default value for Boolean conversions. * @param newDefaultBoolean The default Boolean value * @deprecated Register replacement converters for Boolean.TYPE and * Boolean.class instead */ public static void setDefaultBoolean(boolean newDefaultBoolean) { ConvertUtilsBean.getInstance().setDefaultBoolean(newDefaultBoolean); } /** * Gets the default value for Byte conversions. * @return The default Byte value * @deprecated Register replacement converters for Byte.TYPE and * Byte.class instead */ public static byte getDefaultByte() { return ConvertUtilsBean.getInstance().getDefaultByte(); } /** * Sets the default value for Byte conversions. * @param newDefaultByte The default Byte value * @deprecated Register replacement converters for Byte.TYPE and * Byte.class instead */ public static void setDefaultByte(byte newDefaultByte) { ConvertUtilsBean.getInstance().setDefaultByte(newDefaultByte); } /** * Gets the default value for Character conversions. * @return The default Character value * @deprecated Register replacement converters for Character.TYPE and * Character.class instead */ public static char getDefaultCharacter() { return ConvertUtilsBean.getInstance().getDefaultCharacter(); } /** * Sets the default value for Character conversions. * @param newDefaultCharacter The default Character value * @deprecated Register replacement converters for Character.TYPE and * Character.class instead */ public static void setDefaultCharacter(char newDefaultCharacter) { ConvertUtilsBean.getInstance().setDefaultCharacter(newDefaultCharacter); } /** * Gets the default value for Double conversions. * @return The default Double value * @deprecated Register replacement converters for Double.TYPE and * Double.class instead */ public static double getDefaultDouble() { return ConvertUtilsBean.getInstance().getDefaultDouble(); } /** * Sets the default value for Double conversions. * @param newDefaultDouble The default Double value * @deprecated Register replacement converters for Double.TYPE and * Double.class instead */ public static void setDefaultDouble(double newDefaultDouble) { ConvertUtilsBean.getInstance().setDefaultDouble(newDefaultDouble); } /** * Get the default value for Float conversions. * @return The default Float value * @deprecated Register replacement converters for Float.TYPE and * Float.class instead */ public static float getDefaultFloat() { return ConvertUtilsBean.getInstance().getDefaultFloat(); } /** * Sets the default value for Float conversions. * @param newDefaultFloat The default Float value * @deprecated Register replacement converters for Float.TYPE and * Float.class instead */ public static void setDefaultFloat(float newDefaultFloat) { ConvertUtilsBean.getInstance().setDefaultFloat(newDefaultFloat); } /** * Gets the default value for Integer conversions. * @return The default Integer value * @deprecated Register replacement converters for Integer.TYPE and * Integer.class instead */ public static int getDefaultInteger() { return ConvertUtilsBean.getInstance().getDefaultInteger(); } /** * Sets the default value for Integer conversions. * @param newDefaultInteger The default Integer value * @deprecated Register replacement converters for Integer.TYPE and * Integer.class instead */ public static void setDefaultInteger(int newDefaultInteger) { ConvertUtilsBean.getInstance().setDefaultInteger(newDefaultInteger); } /** * Gets the default value for Long conversions. * @return The default Long value * @deprecated Register replacement converters for Long.TYPE and * Long.class instead */ public static long getDefaultLong() { return (ConvertUtilsBean.getInstance().getDefaultLong()); } /** * Sets the default value for Long conversions. * @param newDefaultLong The default Long value * @deprecated Register replacement converters for Long.TYPE and * Long.class instead */ public static void setDefaultLong(long newDefaultLong) { ConvertUtilsBean.getInstance().setDefaultLong(newDefaultLong); } /** * Gets the default value for Short conversions. * @return The default Short value * @deprecated Register replacement converters for Short.TYPE and * Short.class instead */ public static short getDefaultShort() { return ConvertUtilsBean.getInstance().getDefaultShort(); } /** * Sets the default value for Short conversions. * @param newDefaultShort The default Short value * @deprecated Register replacement converters for Short.TYPE and * Short.class instead */ public static void setDefaultShort(short newDefaultShort) { ConvertUtilsBean.getInstance().setDefaultShort(newDefaultShort); } // --------------------------------------------------------- Public Classes /** *

Convert the specified value into a String.

* *

For more details see ConvertUtilsBean.

* * @param value Value to be converted (may be null) * @return The converted String value * * @see ConvertUtilsBean#convert(Object) */ public static String convert(Object value) { return ConvertUtilsBean.getInstance().convert(value); } /** *

Convert the specified value to an object of the specified class (if * possible). Otherwise, return a String representation of the value.

* *

For more details see ConvertUtilsBean.

* * @param value Value to be converted (may be null) * @param clazz Java class to be converted to * @return The converted value * * @see ConvertUtilsBean#convert(String, Class) */ public static Object convert(String value, Class clazz) { return ConvertUtilsBean.getInstance().convert(value, clazz); } /** *

Convert an array of specified values to an array of objects of the * specified class (if possible).

* *

For more details see ConvertUtilsBean.

* * @param values Array of values to be converted * @param clazz Java array or element class to be converted to * @return The converted value * * @see ConvertUtilsBean#convert(String[], Class) */ public static Object convert(String[] values, Class clazz) { return ConvertUtilsBean.getInstance().convert(values, clazz); } /** *

Convert the value to an object of the specified class (if * possible).

* * @param value Value to be converted (may be null) * @param targetType Class of the value to be converted to * @return The converted value * * @exception ConversionException if thrown by an underlying Converter */ public static Object convert(Object value, Class targetType) { return ConvertUtilsBean.getInstance().convert(value, targetType); } /** *

Remove all registered {@link Converter}s, and re-establish the * standard Converters.

* *

For more details see ConvertUtilsBean.

* * @see ConvertUtilsBean#deregister() */ public static void deregister() { ConvertUtilsBean.getInstance().deregister(); } /** *

Remove any registered {@link Converter} for the specified destination * Class.

* *

For more details see ConvertUtilsBean.

* * @param clazz Class for which to remove a registered Converter * @see ConvertUtilsBean#deregister(Class) */ public static void deregister(Class clazz) { ConvertUtilsBean.getInstance().deregister(clazz); } /** *

Look up and return any registered {@link Converter} for the specified * destination class; if there is no registered Converter, return * null.

* *

For more details see ConvertUtilsBean.

* * @param clazz Class for which to return a registered Converter * @return The registered {@link Converter} or null if not found * @see ConvertUtilsBean#lookup(Class) */ public static Converter lookup(Class clazz) { return ConvertUtilsBean.getInstance().lookup(clazz); } /** * Look up and return any registered {@link Converter} for the specified * source and destination class; if there is no registered Converter, * return null. * * @param sourceType Class of the value being converted * @param targetType Class of the value to be converted to * @return The registered {@link Converter} or null if not found */ public static Converter lookup(Class sourceType, Class targetType) { return ConvertUtilsBean.getInstance().lookup(sourceType, targetType); } /** *

Register a custom {@link Converter} for the specified destination * Class, replacing any previously registered Converter.

* *

For more details see ConvertUtilsBean.

* * @param converter Converter to be registered * @param clazz Destination class for conversions performed by this * Converter * @see ConvertUtilsBean#register(Converter, Class) */ public static void register(Converter converter, Class clazz) { ConvertUtilsBean.getInstance().register(converter, clazz); } }




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