com.google.gwt.dom.builder.shared

## Class ElementBuilderFactory

- java.lang.Object
- - com.google.gwt.dom.builder.shared.ElementBuilderFactory

Direct Known Subclasses:
  DomBuilderFactory, HtmlBuilderFactory

    public abstract class ElementBuilderFactory
    extends java.lang.Object

Factory for creating element builders.

Use `get()` to fetch the builder factory optimized for the browser platform.

If you are using the builder on a server, use `HtmlBuilderFactory.get()` instead. `HtmlBuilderFactory` can construct a `SafeHtml` string and will work on the server. Other implementations may only work on a browser client.

Element builder methods can be chained together as with a traditional builder:

     DivBuilder divBuilder = ElementBuilderFactory.get().createDivBuilder();
     divBuilder.id("myId").text("Hello World!").endDiv();

See this example:

>     public class ElementBuilderFactoryChainingExample implements EntryPoint {

>       @Override
>       public void onModuleLoad() {
>         /*
>          * Create a builder for the outermost element. The initial state of the
>          * builder is a started element ready for attributes (eg. "<div").
>          */
>         DivBuilder divBuilder = ElementBuilderFactory.get().createDivBuilder();

>         /*
>          * Build the element.
>          *
>          * First, we set the element's id to "myId", then set its title to
>          * "This is a div". Next, we set the background-color style property to
>          * "red". Finally, we set some inner text to "Hello World!". When we are
>          * finished, we end the div.
>          *
>          * When building elements, the order of methods matters. Attributes and
>          * style properties must be added before setting inner html/text or
>          * appending children. This is because the string implementation cannot
>          * concatenate an attribute after child content has been added.
>          *
>          * Note that endStyle() takes the builder type that we want to return, which
>          * must be the "parent" builder. endDiv() does not need the optional
>          * argument because we are finished building the element.
>          */
>         divBuilder.id("myId").title("This is a div");
>         divBuilder.style().trustedBackgroundColor("red").endStyle();
>         divBuilder.text("Hello World!").endDiv();

>         // Get the element out of the builder.
>         Element div = divBuilder.finish();

>         // Attach the element to the page.
>         Document.get().getBody().appendChild(div);
>       }
>     }

.

Alternatively, builders can be used as separate objects and operated on individually. This may be the preferred method if you are creating a complex or dynamic element. The code below produces the same output as the code above.

     DivBuilder divBuilder = ElementBuilderFactory.get().createDivBuilder();
     divBuilder.id("myId");
     divBuilder.text("Hello World!");
     divBuilder.endDiv();

See an example:

>     public class ElementBuilderFactoryNonChainingExample implements EntryPoint {

>       @Override
>       public void onModuleLoad() {
>         /*
>          * Create a builder for the outermost element. The initial state of the
>          * builder is a started element ready for attributes (eg. "<div").
>          */
>         DivBuilder divBuilder = ElementBuilderFactory.get().createDivBuilder();

>         // Add attributes to the div.
>         divBuilder.id("myId");
>         divBuilder.title("This is a div");

>         // Add style properties to the div.
>         StylesBuilder divStyle = divBuilder.style();
>         divStyle.trustedBackgroundColor("red");
>         divStyle.endStyle();

>         // Append a child select element to the div.
>         SelectBuilder selectBuilder = divBuilder.startSelect();

>         // Append three options to the select element.
>         for (int i = 0; i < 3; i++) {
>           OptionBuilder optionBuilder = selectBuilder.startOption();
>           optionBuilder.value("value" + i);
>           optionBuilder.text("Option " + i);
>           optionBuilder.endOption();
>         }

>         /*
>          * End the select and div elements. Note that ending the remaining elements
>          * before calling asElement() below is optional, but a good practice. If we
>          * did not call endOption() above, we would append each option element to
>          * the preceding option element, which is not what we want.
>          *
>          * In general, you must pay close attention to ensure that you close
>          * elements correctly.
>          */
>         selectBuilder.endSelect();
>         divBuilder.endDiv();

>         // Get the element out of the builder.
>         Element div = divBuilder.finish();

>         // Attach the element to the page.
>         Document.get().getBody().appendChild(div);
>       }
>     }

.

You can also mix chaining and non-chaining methods when appropriate. For example, you can add attributes to an element by chaining methods, but use a separate builder object for each separate element.

NOTE: Builders always operate on the current element. For example, in the code below, we create two divBuilders, one a child of the other. However, they are actually the same builder instance! Implementations of ElementBuilderFactory use a single instance of each builder type to improve performance. The implication is that all element builders operate on the current element, so the call to `divBuilder0.id("div1")` will set the "id" of the child div, and is functionally equivalent to `divBuilder1.id("div1")`. Its important to always call end() before resuming work on the previous element builder.

     DivBuilder divBuilder0 = ElementBuilderFactory.get().createDivBuilder();
     DivBuilder divBuilder1 = divBuilder0.startDiv();
     divBuilder0.id("div1"); // Operates on the first element!

### Constructor Summary

Constructors
`protected` `ElementBuilderFactory()` Created from static factory method.

### Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
`abstract AnchorBuilder` `createAnchorBuilder()`
`abstract AreaBuilder` `createAreaBuilder()`
`abstract AudioBuilder` `createAudioBuilder()`
`abstract BaseBuilder` `createBaseBuilder()`
`abstract QuoteBuilder` `createBlockQuoteBuilder()`
`abstract BodyBuilder` `createBodyBuilder()`
`abstract BRBuilder` `createBRBuilder()`
`abstract InputBuilder` `createButtonInputBuilder()`
`abstract CanvasBuilder` `createCanvasBuilder()`
`abstract InputBuilder` `createCheckboxInputBuilder()`
`abstract TableColBuilder` `createColBuilder()`
`abstract TableColBuilder` `createColGroupBuilder()`
`abstract DivBuilder` `createDivBuilder()`
`abstract DListBuilder` `createDListBuilder()`
`abstract FieldSetBuilder` `createFieldSetBuilder()`
`abstract InputBuilder` `createFileInputBuilder()`
`abstract FormBuilder` `createFormBuilder()`
`abstract FrameBuilder` `createFrameBuilder()`
`abstract FrameSetBuilder` `createFrameSetBuilder()`
`abstract HeadingBuilder` `createH1Builder()`
`abstract HeadingBuilder` `createH2Builder()`
`abstract HeadingBuilder` `createH3Builder()`
`abstract HeadingBuilder` `createH4Builder()`
`abstract HeadingBuilder` `createH5Builder()`
`abstract HeadingBuilder` `createH6Builder()`
`abstract HeadBuilder` `createHeadBuilder()`
`abstract InputBuilder` `createHiddenInputBuilder()`
`abstract HRBuilder` `createHRBuilder()`
`abstract IFrameBuilder` `createIFrameBuilder()`
`abstract ImageBuilder` `createImageBuilder()`
`abstract InputBuilder` `createImageInputBuilder()`
`abstract LabelBuilder` `createLabelBuilder()`
`abstract LegendBuilder` `createLegendBuilder()`
`abstract LIBuilder` `createLIBuilder()`
`abstract LinkBuilder` `createLinkBuilder()`
`abstract MapBuilder` `createMapBuilder()`
`abstract MetaBuilder` `createMetaBuilder()`
`abstract OListBuilder` `createOListBuilder()`
`abstract OptGroupBuilder` `createOptGroupBuilder()`
`abstract OptionBuilder` `createOptionBuilder()`
`abstract ParagraphBuilder` `createParagraphBuilder()`
`abstract ParamBuilder` `createParamBuilder()`
`abstract InputBuilder` `createPasswordInputBuilder()`
`abstract PreBuilder` `createPreBuilder()`
`abstract ButtonBuilder` `createPushButtonBuilder()`
`abstract QuoteBuilder` `createQuoteBuilder()`
`abstract InputBuilder` `createRadioInputBuilder(java.lang.String name)` Create a builder for an <input type='radio'> element.
`abstract ButtonBuilder` `createResetButtonBuilder()`
`abstract InputBuilder` `createResetInputBuilder()`
`abstract ScriptBuilder` `createScriptBuilder()`
`abstract SelectBuilder` `createSelectBuilder()`
`abstract SourceBuilder` `createSourceBuilder()`
`abstract SpanBuilder` `createSpanBuilder()`
`abstract StyleBuilder` `createStyleBuilder()`
`abstract ButtonBuilder` `createSubmitButtonBuilder()`
`abstract InputBuilder` `createSubmitInputBuilder()`
`abstract TableBuilder` `createTableBuilder()`
`abstract TableCaptionBuilder` `createTableCaptionBuilder()`
`abstract TableSectionBuilder` `createTBodyBuilder()`
`abstract TableCellBuilder` `createTDBuilder()`
`abstract TextAreaBuilder` `createTextAreaBuilder()`
`abstract InputBuilder` `createTextInputBuilder()`
`abstract TableSectionBuilder` `createTFootBuilder()`
`abstract TableCellBuilder` `createTHBuilder()`
`abstract TableSectionBuilder` `createTHeadBuilder()`
`abstract TableRowBuilder` `createTRBuilder()`
`abstract UListBuilder` `createUListBuilder()`
`abstract VideoBuilder` `createVideoBuilder()`
`static ElementBuilderFactory` `get()` Get the instance of the `ElementBuilderFactory`.
`abstract ElementBuilder` `trustedCreate(java.lang.String tagName)` Create an `ElementBuilder` for an arbitrary tag name.

### Methods inherited from class java.lang.Object

`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

### Constructor Detail

#### ElementBuilderFactory

    protected ElementBuilderFactory()

Created from static factory method.

### Method Detail

#### get

    public static ElementBuilderFactory get()

Get the instance of the `ElementBuilderFactory`.

Returns:
  the `ElementBuilderFactory`

#### createAnchorBuilder

    public abstract AnchorBuilder createAnchorBuilder()

#### createAreaBuilder

    public abstract AreaBuilder createAreaBuilder()

#### createAudioBuilder

    public abstract AudioBuilder createAudioBuilder()

#### createBaseBuilder

    public abstract BaseBuilder createBaseBuilder()

#### createBlockQuoteBuilder

    public abstract QuoteBuilder createBlockQuoteBuilder()

#### createBodyBuilder

    public abstract BodyBuilder createBodyBuilder()

#### createBRBuilder

    public abstract BRBuilder createBRBuilder()

#### createButtonInputBuilder

    public abstract InputBuilder createButtonInputBuilder()

#### createCanvasBuilder

    public abstract CanvasBuilder createCanvasBuilder()

#### createCheckboxInputBuilder

    public abstract InputBuilder createCheckboxInputBuilder()

#### createColBuilder

    public abstract TableColBuilder createColBuilder()

#### createColGroupBuilder

    public abstract TableColBuilder createColGroupBuilder()

#### createDivBuilder

    public abstract DivBuilder createDivBuilder()

#### createDListBuilder

    public abstract DListBuilder createDListBuilder()

#### createFieldSetBuilder

    public abstract FieldSetBuilder createFieldSetBuilder()

#### createFileInputBuilder

    public abstract InputBuilder createFileInputBuilder()

#### createFormBuilder

    public abstract FormBuilder createFormBuilder()

#### createFrameBuilder

    public abstract FrameBuilder createFrameBuilder()

#### createFrameSetBuilder

    public abstract FrameSetBuilder createFrameSetBuilder()

#### createH1Builder

    public abstract HeadingBuilder createH1Builder()

#### createH2Builder

    public abstract HeadingBuilder createH2Builder()

#### createH3Builder

    public abstract HeadingBuilder createH3Builder()

#### createH4Builder

    public abstract HeadingBuilder createH4Builder()

#### createH5Builder

    public abstract HeadingBuilder createH5Builder()

#### createH6Builder

    public abstract HeadingBuilder createH6Builder()

#### createHeadBuilder

    public abstract HeadBuilder createHeadBuilder()

#### createHiddenInputBuilder

    public abstract InputBuilder createHiddenInputBuilder()

#### createHRBuilder

    public abstract HRBuilder createHRBuilder()

#### createIFrameBuilder

    public abstract IFrameBuilder createIFrameBuilder()

#### createImageBuilder

    public abstract ImageBuilder createImageBuilder()

#### createImageInputBuilder

    public abstract InputBuilder createImageInputBuilder()

#### createLabelBuilder

    public abstract LabelBuilder createLabelBuilder()

#### createLegendBuilder

    public abstract LegendBuilder createLegendBuilder()

#### createLIBuilder

    public abstract LIBuilder createLIBuilder()

#### createLinkBuilder

    public abstract LinkBuilder createLinkBuilder()

#### createMapBuilder

    public abstract MapBuilder createMapBuilder()

#### createMetaBuilder

    public abstract MetaBuilder createMetaBuilder()

#### createOListBuilder

    public abstract OListBuilder createOListBuilder()

#### createOptGroupBuilder

    public abstract OptGroupBuilder createOptGroupBuilder()

#### createOptionBuilder

    public abstract OptionBuilder createOptionBuilder()

#### createParagraphBuilder

    public abstract ParagraphBuilder createParagraphBuilder()

#### createParamBuilder

    public abstract ParamBuilder createParamBuilder()

#### createPasswordInputBuilder

    public abstract InputBuilder createPasswordInputBuilder()

#### createPreBuilder

    public abstract PreBuilder createPreBuilder()

#### createPushButtonBuilder

    public abstract ButtonBuilder createPushButtonBuilder()

#### createQuoteBuilder

    public abstract QuoteBuilder createQuoteBuilder()

#### createRadioInputBuilder

    public abstract InputBuilder createRadioInputBuilder(java.lang.String name)

Create a builder for an <input type='radio'> element.

Parameters:
  `name` - name the name of the radio input (used for grouping)
Returns:
  the builder for the new element

#### createResetButtonBuilder

    public abstract ButtonBuilder createResetButtonBuilder()

#### createResetInputBuilder

    public abstract InputBuilder createResetInputBuilder()

#### createScriptBuilder

    public abstract ScriptBuilder createScriptBuilder()

#### createSelectBuilder

    public abstract SelectBuilder createSelectBuilder()

#### createSourceBuilder

    public abstract SourceBuilder createSourceBuilder()

#### createSpanBuilder

    public abstract SpanBuilder createSpanBuilder()

#### createStyleBuilder

    public abstract StyleBuilder createStyleBuilder()

#### createSubmitButtonBuilder

    public abstract ButtonBuilder createSubmitButtonBuilder()

#### createSubmitInputBuilder

    public abstract InputBuilder createSubmitInputBuilder()

#### createTableBuilder

    public abstract TableBuilder createTableBuilder()

#### createTableCaptionBuilder

    public abstract TableCaptionBuilder createTableCaptionBuilder()

#### createTBodyBuilder

    public abstract TableSectionBuilder createTBodyBuilder()

#### createTDBuilder

    public abstract TableCellBuilder createTDBuilder()

#### createTextAreaBuilder

    public abstract TextAreaBuilder createTextAreaBuilder()

#### createTextInputBuilder

    public abstract InputBuilder createTextInputBuilder()

#### createTFootBuilder

    public abstract TableSectionBuilder createTFootBuilder()

#### createTHBuilder

    public abstract TableCellBuilder createTHBuilder()

#### createTHeadBuilder

    public abstract TableSectionBuilder createTHeadBuilder()

#### createTRBuilder

    public abstract TableRowBuilder createTRBuilder()

#### createUListBuilder

    public abstract UListBuilder createUListBuilder()

#### createVideoBuilder

    public abstract VideoBuilder createVideoBuilder()

#### trustedCreate

    public abstract ElementBuilder trustedCreate(java.lang.String tagName)

Create an `ElementBuilder` for an arbitrary tag name. The tag name will will not be checked or escaped. The calling code should be carefully reviewed to ensure that the provided tag name will not cause a security issue if including in an HTML document. In general, this means limiting the code to HTML tagName constants supported by the HTML specification.

Parameters:
  `tagName` - the tag name of the new element
Returns:
  an `ElementBuilder` used to build the element