Package org.apache.tapestry5.services
Interface BeanBlockSource
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- All Known Implementing Classes:
BeanBlockSourceImpl
@UsesConfiguration(BeanBlockContribution.class) public interface BeanBlockSource
A source ofBlocks used to display the properties of a bean (used by theGridcomponent), or to edit the properties of a bean (used by theBeanEditFormcomponent). Contributions to this service (a configuration ofBeanBlockContributions) define what properties may be editted. Blocks are accessed in terms of a data type a string that identifies the type of data to be editted, such as "string", "date", "boolean", etc. Tapestry contributes a number of default data types and corresponding edit and display blocks. TheBeanBlockOverrideSourceservice allows these to be overridden.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description BlockgetDisplayBlock(java.lang.String datatype)Returns a block which can be used to render output for the given data type.BlockgetEditBlock(java.lang.String datatype)Returns a block which can be used to render an editor for the given data type, in the form of a field label and input field.booleanhasDisplayBlock(java.lang.String datatype)Checks to see if there is a display block for the indicated data type.
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Method Detail
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getEditBlock
Block getEditBlock(java.lang.String datatype)
Returns a block which can be used to render an editor for the given data type, in the form of a field label and input field.- Parameters:
datatype- logical name for the type of data to be displayed- Returns:
- the Block
- Throws:
java.lang.RuntimeException- if no appropriate block is available
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getDisplayBlock
Block getDisplayBlock(java.lang.String datatype)
Returns a block which can be used to render output for the given data type.- Parameters:
datatype- logical name for the type of data to be displayed- Returns:
- the Block
- Throws:
java.lang.RuntimeException- if no appropriate block is available
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hasDisplayBlock
boolean hasDisplayBlock(java.lang.String datatype)
Checks to see if there is a display block for the indicated data type.- Parameters:
datatype- to check for- Returns:
- true if a block is available
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