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## com.jgoodies.forms.builder
Class AbstractBuilder

    java.lang.Object
      com.jgoodies.forms.builder.AbstractBuilder

Direct Known Subclasses:
  AbstractButtonPanelBuilder, AbstractFormBuilder

    public abstract class AbstractBuilder

extends Object

An abstract class that minimizes the effort required to implement non-visual builders that use the `FormLayout`.

Builders hide details of the FormLayout and provide convenience behavior that assists you in constructing a form, bar, stack. This class provides a cell cursor that helps you traverse a form while you add components. Also, it offers several methods to append custom and logical columns and rows.

Version:
  $Revision: 1.3 $
Author:
  Karsten Lentzsch
See Also:
  `ButtonBarBuilder2`, `ButtonStackBuilder`, `PanelBuilder`, `I15dPanelBuilder`, `DefaultFormBuilder`

Field Summary
`protected CellConstraints` | `currentCellConstraints` Holds an instance of `CellConstraints` that will be used to specify the location, extent and alignments of the component to be added next.

Constructor Summary
`protected` | `AbstractBuilder(FormLayout layout, Container container)` Constructs an AbstractBuilder for the given FormLayout and layout container.

Method Summary
`protected ComponentFactory` | `createComponentFactory()` Invoked when the per-instance component factory is lazily initialized.
`int` | `getColumnCount()` Returns the number of columns in the form.
`ComponentFactory` | `getComponentFactory()` Returns this builder's component factory.
`Container` | `getContainer()` Returns the container used to build the form.
`static ComponentFactory2` | `getDefaultComponentFactory()` Returns the factory that is used as default for new builder's as they are created.
`FormLayout` | `getLayout()` Returns the FormLayout instance used to build this form.
`int` | `getRowCount()` Returns the number of rows in the form.
`void` | `setComponentFactory(ComponentFactory newFactory)` Sets a new component factory for this builder, overriding the default as provided by `getDefaultComponentFactory()`.
`static void` | `setDefaultComponentFactory(ComponentFactory2 factory)` Sets the global default that is used to initialize the per-instance component factory.

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

Field Detail

### currentCellConstraints

    protected final CellConstraints currentCellConstraints

  Holds an instance of `CellConstraints` that will be used to specify the location, extent and alignments of the component to be added next.

Constructor Detail

### AbstractBuilder

    protected AbstractBuilder(FormLayout layout,
                              Container container)

  Constructs an AbstractBuilder for the given FormLayout and layout container.

  Parameters:
    `layout` - the FormLayout to use
    `container` - the layout container
  Throws:
    `NullPointerException` - if `layout` or `container` is `null`

Method Detail

### getDefaultComponentFactory

    public static ComponentFactory2 getDefaultComponentFactory()

  Returns the factory that is used as default for new builder's as they are created. This default itself is lazily initialized as the `DefaultComponentFactory`.

  Returns:
    the factory that is used as default for new builder instances

### setDefaultComponentFactory

    public static void setDefaultComponentFactory(ComponentFactory2 factory)

  Sets the global default that is used to initialize the per-instance component factory.

  Parameters:
    `factory` - the factory to be used for all new builder instances that do not override the default

### getContainer

    public final Container getContainer()

  Returns the container used to build the form.

  Returns:
    the layout container

### getLayout

    public final FormLayout getLayout()

  Returns the FormLayout instance used to build this form.

  Returns:
    the FormLayout

### getColumnCount

    public final int getColumnCount()

  Returns the number of columns in the form.

  Returns:
    the number of columns

### getRowCount

    public final int getRowCount()

  Returns the number of rows in the form.

  Returns:
    the number of rows

### getComponentFactory

    public final ComponentFactory getComponentFactory()

  Returns this builder's component factory. If no factory has been set before, it is lazily initialized from the global default as returned by `getDefaultComponentFactory()`.

  Returns:
    the component factory
  See Also:
    `setComponentFactory(ComponentFactory)`

### setComponentFactory

    public final void setComponentFactory(ComponentFactory newFactory)

  Sets a new component factory for this builder, overriding the default as provided by `getDefaultComponentFactory()`.

  Parameters:
    `newFactory` - the component factory to be used for this builder
  See Also:
    `getComponentFactory()`

### createComponentFactory

    protected ComponentFactory createComponentFactory()

  Invoked when the per-instance component factory is lazily initialized. This implementation returns the global default factory.

  Subclasses may override to use a factory other than the global default. However, in most cases it is sufficient to just set a new gobal default using `setDefaultComponentFactory(ComponentFactory2)`.

  Returns:
    the factory used during the lazy initialization of the per-instance component factory

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Copyright © 2002-2011 JGoodies Karsten Lentzsch. All Rights Reserved.