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## Uses of Interface
org.apache.commons.configuration.tree.ExpressionEngine

Packages that use ExpressionEngine
org.apache.commons.configuration | The Configuration main package.
org.apache.commons.configuration.tree | A package with helper and utility classes used by hierarchical configurations.
org.apache.commons.configuration.tree.xpath | This package contains the implementation of the XPathExpressionEngine class, which enables XPATH support for querying configuration properties.

Uses of ExpressionEngine in org.apache.commons.configuration

Methods in org.apache.commons.configuration that return ExpressionEngine
`ExpressionEngine` | `CombinedConfiguration.getConversionExpressionEngine()` Returns the `ExpressionEngine` for converting flat child configurations to hierarchical ones.
`static ExpressionEngine` | `HierarchicalConfiguration.getDefaultExpressionEngine()` Returns the default expression engine.
`ExpressionEngine` | `PatternSubtreeConfigurationWrapper.getExpressionEngine()`
`ExpressionEngine` | `MultiFileHierarchicalConfiguration.getExpressionEngine()`
`ExpressionEngine` | `HierarchicalConfiguration.getExpressionEngine()` Returns the expression engine used by this configuration.
`ExpressionEngine` | `DynamicCombinedConfiguration.getExpressionEngine()`

Methods in org.apache.commons.configuration with parameters of type ExpressionEngine
`static HierarchicalConfiguration` | `ConfigurationUtils.convertToHierarchical(Configuration conf, ExpressionEngine engine)` Converts the passed in `Configuration` object to a hierarchical one using the specified `ExpressionEngine`.
`void` | `CombinedConfiguration.setConversionExpressionEngine(ExpressionEngine conversionExpressionEngine)` Sets the `ExpressionEngine` for converting flat child configurations to hierarchical ones.
`static void` | `HierarchicalConfiguration.setDefaultExpressionEngine(ExpressionEngine engine)` Sets the default expression engine.
`void` | `PatternSubtreeConfigurationWrapper.setExpressionEngine(ExpressionEngine expressionEngine)`
`void` | `MultiFileHierarchicalConfiguration.setExpressionEngine(ExpressionEngine expressionEngine)`
`void` | `HierarchicalConfiguration.setExpressionEngine(ExpressionEngine expressionEngine)` Sets the expression engine to be used by this configuration.
`void` | `DynamicCombinedConfiguration.setExpressionEngine(ExpressionEngine expressionEngine)`

Uses of ExpressionEngine in org.apache.commons.configuration.tree

Classes in org.apache.commons.configuration.tree that implement ExpressionEngine
`class` | `DefaultExpressionEngine` A default implementation of the `ExpressionEngine` interface providing the "native"e; expression language for hierarchical configurations.

Uses of ExpressionEngine in org.apache.commons.configuration.tree.xpath

Classes in org.apache.commons.configuration.tree.xpath that implement ExpressionEngine
`class` | `XPathExpressionEngine` A specialized implementation of the `ExpressionEngine` interface that is able to evaluate XPATH expressions.

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