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## javax.el
Class ExpressionFactory

    java.lang.Object
      javax.el.ExpressionFactory

    public abstract class ExpressionFactory

extends java.lang.Object

Since:
  2.1

Constructor Summary
`ExpressionFactory()`

Method Summary
`abstract java.lang.Object` | `coerceToType(java.lang.Object obj, java.lang.Class<?> expectedType)`
`abstract MethodExpression` | `createMethodExpression(ELContext context, java.lang.String expression, java.lang.Class<?> expectedReturnType, java.lang.Class<?>[] expectedParamTypes)`
`abstract ValueExpression` | `createValueExpression(ELContext context, java.lang.String expression, java.lang.Class<?> expectedType)`
`abstract ValueExpression` | `createValueExpression(java.lang.Object instance, java.lang.Class<?> expectedType)`
`static ExpressionFactory` | `newInstance()` Create a new `ExpressionFactory`.
`static ExpressionFactory` | `newInstance(java.util.Properties properties)` Create a new `ExpressionFactory` passing in the provided `Properties`.

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

Constructor Detail

### ExpressionFactory

    public ExpressionFactory()

Method Detail

### coerceToType

    public abstract java.lang.Object coerceToType(java.lang.Object obj,
                                                  java.lang.Class<?> expectedType)
                                           throws ELException

  Throws:
    `ELException`

### createValueExpression

    public abstract ValueExpression createValueExpression(ELContext context,
                                                          java.lang.String expression,
                                                          java.lang.Class<?> expectedType)
                                                   throws java.lang.NullPointerException,
                                                          ELException

  Throws:
    `java.lang.NullPointerException`
    `ELException`

### createValueExpression

    public abstract ValueExpression createValueExpression(java.lang.Object instance,
                                                          java.lang.Class<?> expectedType)

### createMethodExpression

    public abstract MethodExpression createMethodExpression(ELContext context,
                                                            java.lang.String expression,
                                                            java.lang.Class<?> expectedReturnType,
                                                            java.lang.Class<?>[] expectedParamTypes)
                                                     throws ELException,
                                                            java.lang.NullPointerException

  Throws:
    `ELException`
    `java.lang.NullPointerException`

### newInstance

    public static ExpressionFactory newInstance()

  Create a new `ExpressionFactory`. The class to use is determined by the following search order:
  1. services API (META-INF/services/javax.el.ExpressionFactory)
  2. $JRE_HOME/lib/el.properties - key javax.el.ExpressionFactory
  3. javax.el.ExpressionFactory
  4. Platform default implementation - org.apache.el.ExpressionFactoryImpl

  Returns:
    the new ExpressionFactory

### newInstance

    public static ExpressionFactory newInstance(java.util.Properties properties)

  Create a new `ExpressionFactory` passing in the provided `Properties`. Search order is the same as `newInstance()`.

  Parameters:
    `properties` - the properties to be passed to the new instance (may be null)
  Returns:
    the new ExpressionFactory

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