DynClasses.Builder

java.lang.Object

org.apache.iceberg.common.DynClasses.Builder

Enclosing class:: DynClasses

public static class DynClasses.Builder extends Object

Method Summary

Modifier and Type

Method

Description

<S> Class<? extends S>

build()

Returns the first implementation or throws RuntimeException if one was not found.

<S> Class<? extends S>

buildChecked()

Returns the first implementation or throws ClassNotFoundException if one was not found.

DynClasses.Builder

impl(String className)

Checks for an implementation of the class by name.

DynClasses.Builder

loader(ClassLoader newLoader)

Set the ClassLoader used to lookup classes by name.

DynClasses.Builder

orNull()

Instructs this builder to return null if no class is found, rather than throwing an Exception.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details
- loader
  
  public DynClasses.Builder loader(ClassLoader newLoader)
  
  Set the ClassLoader used to lookup classes by name.
  If not set, the current thread's ClassLoader is used.
  
  Parameters:
  
  newLoader - a ClassLoader
  
  Returns:
  
  this Builder for method chaining
- impl
  
  public DynClasses.Builder impl(String className)
  
  Checks for an implementation of the class by name.
  
  Parameters:
  
  className - name of a class
  
  Returns:
  
  this Builder for method chaining
- orNull
  
  public DynClasses.Builder orNull()
  
  Instructs this builder to return null if no class is found, rather than throwing an Exception.
  
  Returns:
  
  this Builder for method chaining
- buildChecked
  
  public <S> Class<? extends S> buildChecked() throws ClassNotFoundException
  
  Returns the first implementation or throws ClassNotFoundException if one was not found.
  
  Type Parameters:
  
  S - Java superclass
  
  Returns:
  
  a Class for the first implementation found
  
  Throws:
  
  ClassNotFoundException - if no implementation was found
- build
  
  public <S> Class<? extends S> build()
  
  Returns the first implementation or throws RuntimeException if one was not found.
  
  Type Parameters:
  
  S - Java superclass
  
  Returns:
  
  a Class for the first implementation found
  
  Throws:
  
  RuntimeException - if no implementation was found