Examples of org.apache.commons.lang3.builder.ReflectionToStringBuilder

Package org.apache.commons.lang3.builder

Examples of org.apache.commons.lang3.builder.ReflectionToStringBuilder

org.apache.commons.lang3.builder.ToStringStyleTest.Person
Assists in implementing {@link Object#toString()} methods using reflection.

This class uses reflection to determine the fields to append. Because these fields are usually private, the class uses {@link java.lang.reflect.AccessibleObject#setAccessible(java.lang.reflect.AccessibleObject[],boolean)} tochange the visibility of the fields. This will fail under a security manager, unless the appropriate permissions are set up correctly.

A typical invocation for this method would look like:
```
 public String toString() { return ReflectionToStringBuilder.toString(this); }
```
You can also use the builder to debug 3rd party objects:
```
 System.out.println("An object: " + ReflectionToStringBuilder.toString(anObject));
```
A subclass can control field output by overriding the methods:
- {@link #accept(java.lang.reflect.Field)}
- {@link #getValue(java.lang.reflect.Field)}
For example, this method does not include the password field in the returned String:
```
 public String toString() { return (new ReflectionToStringBuilder(this) { protected boolean accept(Field f) { return super.accept(f) && !f.getName().equals("password"); } }).toString(); }
```
The exact format of the toString is determined by the {@link ToStringStyle} passed into theconstructor.
@author Apache Software Foundation @author Gary Gregory @author Pete Gieser @since 2.0 @version $Id: ReflectionToStringBuilder.java 889215 2009-12-10 11:56:38Z bayard $

         * @see java.lang.Object#toString()
         */
        @Override
        public String toString()
        {
            return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE)
                .append("tagClass", this.tagClass)
                .append("attributeName", this.attributeName)
                .append("attributeType", this.attributeType)
                .toString();
        }

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     * @see java.lang.Object#toString()
     */
    @Override
    public String toString()
    {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE) //
            .append("cell", this.cell) //$NON-NLS-1$
            .append("header", this.header) //$NON-NLS-1$
            .append("htmlAttributes", this.htmlAttributes) //$NON-NLS-1$
            .append("stringValue", this.stringValue) //$NON-NLS-1$
            .toString();

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     * @see java.lang.Object#toString()
     */
    @Override
    public String toString()
    {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("number", this.number).toString();
    }

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     * @see java.lang.Object#toString()
     */
    @Override
    public String toString()
    {
        return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE) //
            .append("project", this.project) //$NON-NLS-1$
            .append("amount", this.amount) //$NON-NLS-1$
            .append("city", this.city) //$NON-NLS-1$
            .append("task", this.task) //$NON-NLS-1$
            .toString();

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         * @see java.lang.Object#toString()
         */
        @Override
        public String toString()
        {
            return new ToStringBuilder(this, ToStringStyle.SIMPLE_STYLE) //
                .append("name", this.itemName) //$NON-NLS-1$
                .append("email", this.itemEmail) //$NON-NLS-1$
                .toString();
        }

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    }


    @Override
    public String toString()
    {
        return new ToStringBuilder(this)
            .append("cfId", cfId)
            .append("ksName", ksName)
            .append("cfName", cfName)
            .append("cfType", cfType)
            .append("comparator", comparator)

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        assertEquals(baseStr + "[a=<size=0>]", new ToStringBuilder(base).append("a", (Object) new String[0], false).toString());
        assertEquals(baseStr + "[a={}]", new ToStringBuilder(base).append("a", (Object) new String[0], true).toString());
    }


    public void testPerson() {
        Person p = new Person();
        p.name = "John Doe";
        p.age = 33;
        p.smoker = false;
        String pBaseStr = p.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(p));
        assertEquals(pBaseStr + "[name=John Doe,age=33,smoker=false]", new ToStringBuilder(p).append("name", p.name).append("age", p.age).append("smoker", p.smoker).toString());
    }

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        assertEquals("<size=0>", new ToStringBuilder(base).append("a", (Object) new String[0], false).toString());
        assertEquals("{}", new ToStringBuilder(base).append("a", (Object) new String[0], true).toString());
    }


    public void testPerson() {
        Person p = new Person();
        p.name = "Jane Q. Public";
        p.age = 47;
        p.smoker = false;
        assertEquals("Jane Q. Public,47,false", new ToStringBuilder(p).append("name", p.name).append("age", p.age).append("smoker", p.smoker).toString());
    }

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        assertEquals(baseStr + "[a=%SIZE=0%]", new ToStringBuilder(base).append("a", (Object) new String[0], false).toString());
        assertEquals(baseStr + "[a=[]]", new ToStringBuilder(base).append("a", (Object) new String[0], true).toString());
    }


    public void testPerson() {
        Person p = new Person();
        p.name = "Suzy Queue";
        p.age = 19;
        p.smoker = false;
        String pBaseStr = "ToStringStyleTest.Person";
        assertEquals(pBaseStr + "[name=Suzy Queue,age=19,smoker=false]", new ToStringBuilder(p).append("name", p.name).append("age", p.age).append("smoker", p.smoker).toString());

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        assertEquals(baseStr + "[<size=0>]", new ToStringBuilder(base).append("a", (Object) new String[0], false).toString());
        assertEquals(baseStr + "[{}]", new ToStringBuilder(base).append("a", (Object) new String[0], true).toString());
    }


    public void testPerson() {
        Person p = new Person();
        p.name = "Ron Paul";
        p.age = 72;
        p.smoker = false;
        String pBaseStr = p.getClass().getName() + "@" + Integer.toHexString(System.identityHashCode(p));
        assertEquals(pBaseStr + "[Ron Paul,72,false]", new ToStringBuilder(p).append("name", p.name).append("age", p.age).append("smoker", p.smoker).toString());
    }

View Full Code Here

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