JavaProjectBuilder

java.lang.Object
- com.thoughtworks.qdox.JavaProjectBuilder

```
public class JavaProjectBuilder
extends java.lang.Object
```
This is the improved version of the JavaDocBuilder of QDox 1.x, which has the following tasks:
- Provide adders for all kind of resources, such as classloaders, java files and source directories
- Provide setters to enable the debug-mode for the Lexer and Parser (which are used when parsing sourcefiles) and the encoding
- Provide getter for retrieving Java Object Models from these libraries, such as JavaSources, JavaClasses and JavaPackages
- Provide a method to search through all the parsed JavaClasses
- Provide store and load methods for the JavaProjectBuilder
- Provide the option to set an ErrorHandler
By default the JavaProjectBuilder will use the SortedClassLibraryBuilder, which means it doesn't matter in which order you add the resources, first all sources and sourcefolders, followed by the classloaders. Another implementation for the ClassLibraryBuilder is the OrderedClassLibraryBuilder, which preserves the order in which resources are added. By creating a new JavaProjectBuilder with your own ClassLibraryBuilder you can decide which loading strategy should be used.
Since:

2.0

Constructor Summary

Constructors
Constructor	Description
`JavaProjectBuilder()`	Default constructor, which will use the `SortedClassLibraryBuilder` implementation and add the default classloaders
`JavaProjectBuilder(ClassLibraryBuilder classLibraryBuilder)`	Custom constructor, so another resource loading strategy can be defined

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addClassLoader(java.lang.ClassLoader classLoader)`	Add the `ClassLoader` to this JavaProjectBuilder
`JavaSource`	`addSource(java.io.File file)`	Add a java source from a file to this JavaProjectBuilder
`JavaSource`	`addSource(java.io.Reader reader)`	Add a java source from a Reader to this JavaProjectBuilder
`JavaSource`	`addSource(java.net.URL url)`	Add a java source from a URL to this JavaProjectBuilder
`JavaModule`	`addSourceFolder(java.io.File sourceFolder)`	Add a sourcefolder to this javaprojectbuilder, but don't parse any file.
`void`	`addSourceTree(java.io.File directory)`	Add all java files of the `directory` recursively
`void`	`addSourceTree(java.io.File directory, FileVisitor errorHandler)`	Add all java files of the `directory` recursively
`JavaClass`	`getClassByName(java.lang.String name)`	Try to retrieve a `JavaClass` by its name.
`java.util.Collection<JavaClass>`	`getClasses()`	Retrieve all classes which were added by sources
`java.util.Collection<JavaModule>`	`getModules()`
`JavaPackage`	`getPackageByName(java.lang.String name)`	Try to retrieve a `JavaPackage` by its name.
`java.util.Collection<JavaPackage>`	`getPackages()`	Retrieve all packages which were added by sources.
`java.util.Collection<JavaSource>`	`getSources()`	Get all the sources added.
`static JavaProjectBuilder`	`load(java.io.File file)`	Note that after loading JavaDocBuilder classloaders need to be re-added.
`void`	`save(java.io.File file)`	Persist the classLibraryBuilder to a file
`java.util.Collection<JavaClass>`	`search(Searcher searcher)`
`JavaProjectBuilder`	`setDebugLexer(boolean debugLexer)`	Enable the debugmode for the Lexer
`JavaProjectBuilder`	`setDebugParser(boolean debugParser)`	Enable the debugmode for the Parser
`JavaProjectBuilder`	`setEncoding(java.lang.String encoding)`	Sets the encoding when using Files or URL's to parse.
`JavaProjectBuilder`	`setErrorHandler(ErrorHandler errorHandler)`	Sets the errorHandler which will be triggered when a parse exception occurs.

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

- Constructor Detail
  - JavaProjectBuilder
```
public JavaProjectBuilder()
```
    Default constructor, which will use the SortedClassLibraryBuilder implementation and add the default classloaders
  - JavaProjectBuilder
```
public JavaProjectBuilder(ClassLibraryBuilder classLibraryBuilder)
```
    Custom constructor, so another resource loading strategy can be defined
    
    Parameters:
    
    classLibraryBuilder - custom implementation of ClassLibraryBuilder
- Method Detail
  - setDebugLexer
```
public JavaProjectBuilder setDebugLexer(boolean debugLexer)
```
    Enable the debugmode for the Lexer
    
    Parameters:
    
    debugLexer - true to enable, false to disable
    
    Returns:
    
    this javaProjectBuilder itself
  - setDebugParser
```
public JavaProjectBuilder setDebugParser(boolean debugParser)
```
    Enable the debugmode for the Parser
    
    Parameters:
    
    debugParser - true to enable, false to disable
    
    Returns:
    
    this javaProjectBuilder itself
  - setEncoding
```
public JavaProjectBuilder setEncoding(java.lang.String encoding)
```
    Sets the encoding when using Files or URL's to parse.
    
    Parameters:
    
    encoding - the encoding to use for File or URL
    
    Returns:
    
    this javaProjectBuilder itself
  - setErrorHandler
```
public JavaProjectBuilder setErrorHandler(ErrorHandler errorHandler)
```
    Sets the errorHandler which will be triggered when a parse exception occurs.
    
    Parameters:
    
    errorHandler - the errorHandler
    
    Returns:
    
    this javaProjectBuilder itself
  - addSource
```
public JavaSource addSource(java.io.File file)
                     throws java.io.IOException
```
    Add a java source from a file to this JavaProjectBuilder
    
    Parameters:
    
    file - a java file
    
    Returns:
    
    the JavaSource of the parsed file
    
    Throws:
    
    java.io.IOException - if file is a directory or can't be read
  - addSource
```
public JavaSource addSource(java.net.URL url)
                     throws java.io.IOException
```
    Add a java source from a URL to this JavaProjectBuilder
    
    Parameters:
    
    url - the url
    
    Returns:
    
    the JavaSource of the parsed file
    
    Throws:
    
    java.io.IOException - if the url can't be read
  - addSource
```
public JavaSource addSource(java.io.Reader reader)
```
    Add a java source from a Reader to this JavaProjectBuilder
    
    Parameters:
    
    reader - the reader
    
    Returns:
    
    the JavaSource of the parsed reader content
  - addSourceFolder
```
public JavaModule addSourceFolder(java.io.File sourceFolder)
```
    Add a sourcefolder to this javaprojectbuilder, but don't parse any file. This is a lazy parser. Only if a JavaClass is called it will be searched by matching the package with the folder structure and the classname with the filename
    
    Parameters:
    
    sourceFolder - the sourcefolder to add
    
    Returns:
    
    the JavaModule when the sourceFolder has a module-info, otherwise null
    
    See Also:
    
    addSourceTree(File)
  - addSourceTree
```
public void addSourceTree(java.io.File directory)
```
    Add all java files of the directory recursively
    
    Parameters:
    
    directory - the directory from which all java files should be parsed.
  - addSourceTree
```
public void addSourceTree(java.io.File directory,
                          FileVisitor errorHandler)
```
    Add all java files of the directory recursively
    
    Parameters:
    
    directory - the directory from which all java files should be parsed.
    
    errorHandler - a fileVisitor which will be triggered when an IOException occurs.
  - addClassLoader
```
public void addClassLoader(java.lang.ClassLoader classLoader)
```
    Add the ClassLoader to this JavaProjectBuilder
    
    Parameters:
    
    classLoader - the classloader to add
  - getClassByName
```
public JavaClass getClassByName(java.lang.String name)
```
    Try to retrieve a JavaClass by its name.
    
    Parameters:
    
    name - the fully qualified name of the class
    
    Returns:
    
    the matching JavaClass, otherwise null
  - getSources
```
public java.util.Collection<JavaSource> getSources()
```
    Get all the sources added. This will only contain the sources added as sourcefile, sourcetree or sourcefolder.
    
    Returns:
    
    a list of sources
    
    See Also:
    
    addSource(File), addSource(Reader), addSourceFolder(File), addSourceTree(File)
  - getClasses
```
public java.util.Collection<JavaClass> getClasses()
```
    Retrieve all classes which were added by sources
    
    Returns:
    
    a list of javaclasses, never null
    
    See Also:
    
    addSource(File), addSource(Reader), addSourceFolder(File), addSourceTree(File)
  - getPackageByName
```
public JavaPackage getPackageByName(java.lang.String name)
```
    Try to retrieve a JavaPackage by its name.
    
    Parameters:
    
    name - the package name
    
    Returns:
    
    the matching JavaPackage, otherwise null
  - getPackages
```
public java.util.Collection<JavaPackage> getPackages()
```
    Retrieve all packages which were added by sources.
    
    Returns:
    
    a list of packages, never null
    
    See Also:
    
    addSource(File), addSource(Reader), addSourceFolder(File), addSourceTree(File)
  - getModules
```
public java.util.Collection<JavaModule> getModules()
```
  - search
```
public java.util.Collection<JavaClass> search(Searcher searcher)
```
  - save
```
public void save(java.io.File file)
          throws java.io.IOException
```
    Persist the classLibraryBuilder to a file
    
    Parameters:
    
    file - the file to serialize to
    
    Throws:
    
    java.io.IOException - Any exception thrown by the underlying OutputStream
  - load
```
public static JavaProjectBuilder load(java.io.File file)
                               throws java.io.IOException
```
    Note that after loading JavaDocBuilder classloaders need to be re-added.
    
    Parameters:
    
    file - the file to load
    
    Returns:
    
    the deserialized project builder
    
    Throws:
    
    java.io.IOException - when file could not be deserialized

Class JavaProjectBuilder

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

JavaProjectBuilder

JavaProjectBuilder

Method Detail

setDebugLexer

setDebugParser

setEncoding

setErrorHandler

addSource

addSource

addSource

addSourceFolder

addSourceTree

addSourceTree

addClassLoader

getClassByName

getSources

getClasses

getPackageByName

getPackages

getModules

search

save

load