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## com.google.gwt.core.ext.linker
Interface SelectionProperty

    public interface SelectionProperty

Represents a deferred binding property. The deferred binding property may or may not have a single value applied across all permutations. SelectionProperty implementations must support object identity comparisons.

See Also:
  `A similarly-named interface used in generators.`

Method Summary
`java.lang.String` | `getFallbackValue()` Returns the fallback value or an empty string if not defined.
`java.lang.String` | `getName()` Returns the name of the deferred binding property.
`java.util.SortedSet<java.lang.String>` | `getPossibleValues()` Returns all possible values for this deferred binding property.
`java.lang.String` | `getPropertyProvider(TreeLogger logger, java.util.SortedSet<ConfigurationProperty> configProperties)` Returns a raw function body that provides the runtime value to be used for a deferred binding property.
`boolean` | `isDerived()` Returns `true` if the value of the SelectionProperty is always derived from other SelectionProperties and, as a consequence, the property provider never needs to be evaluated.
`java.lang.String` | `tryGetValue()` Returns the defined value for the deferred binding property or `null` if the value of the property is not constant.

Method Detail

### getFallbackValue

    java.lang.String getFallbackValue()

  Returns the fallback value or an empty string if not defined.

### getName

    java.lang.String getName()

  Returns the name of the deferred binding property.

### getPossibleValues

    java.util.SortedSet<java.lang.String> getPossibleValues()

  Returns all possible values for this deferred binding property.

### getPropertyProvider

    java.lang.String getPropertyProvider(TreeLogger logger,
                                         java.util.SortedSet<ConfigurationProperty> configProperties)
                                         throws UnableToCompleteException

  Returns a raw function body that provides the runtime value to be used for a deferred binding property.

  Parameters:
    `logger` - logger to use for any warnings/errors
    `configProperties` - set of configuration properties
  Throws:
    `UnableToCompleteException` - if execution cannot continue, after having logged a message

### isDerived

    boolean isDerived()

  Returns `true` if the value of the SelectionProperty is always derived from other SelectionProperties and, as a consequence, the property provider never needs to be evaluated.

### tryGetValue

    java.lang.String tryGetValue()

  Returns the defined value for the deferred binding property or `null` if the value of the property is not constant.

  See Also:
    `CompilationResult.getPropertyMap()`

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