Class CompiledMethodExpression

java.lang.Object

jakarta.el.Expression

jakarta.el.MethodExpression

io.micronaut.el.runtime.CompiledMethodExpression

All Implemented Interfaces:

CompiledExpression, Serializable

Direct Known Subclasses:

LiteralMethodExpression

public abstract class CompiledMethodExpression
extends jakarta.el.MethodExpression
implements CompiledExpression

The base class of the MethodExpression implementations generated at compilation time.

Since:

1.0

Author:

Denis Stepanov

See Also:

• Serialized Form

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CompiledMethodExpression(String expressionString, Class<?> expectedReturnType, @Nullable Class<?>[] expectedParamTypes, boolean parametersProvided)
protected	CompiledMethodExpression(String expressionString, String canonicalForm, Class<?> expectedReturnType, @Nullable Class<?>[] expectedParamTypes, boolean parametersProvided)

Method Summary

Modifier and Type	Method	Description
protected abstract @Nullable Object	doInvoke(jakarta.el.ELContext context, @Nullable Object[] arguments)	Performs the compiled invocation.
boolean	equals(Object obj)
protected Object @Nullable []	evaluateArguments(jakarta.el.ELContext context)	Evaluates the parameters an expression such as ${bean.method(a, b)} provides itself.
protected abstract @Nullable Object	evaluateBase(jakarta.el.ELContext context)	Evaluates the base object the method is invoked on, null for a method expression consisting of a single identifier.
protected abstract @Nullable Object	evaluateProperty(jakarta.el.ELContext context)
protected Class<?>[]	getExpectedParamTypes()
protected Class<?>	getExpectedReturnType()
final String	getExpressionString()
jakarta.el.MethodInfo	getMethodInfo(jakarta.el.ELContext context)
jakarta.el.MethodReference	getMethodReference(jakarta.el.ELContext context)
int	hashCode()
@Nullable Object	invoke(jakarta.el.ELContext context, @Nullable Object[] params)
boolean	isLiteralText()
boolean	isParametersProvided()
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CompiledMethodExpression

protected CompiledMethodExpression(String expressionString,
 Class<?> expectedReturnType,
 @Nullable Class<?>[] expectedParamTypes,
 boolean parametersProvided)

Parameters:

expressionString - The original expression

expectedReturnType - The expected return type

expectedParamTypes - The expected parameter types

parametersProvided - Whether the parameters are provided by the expression itself

CompiledMethodExpression

protected CompiledMethodExpression(String expressionString,
 String canonicalForm,
 Class<?> expectedReturnType,
 @Nullable Class<?>[] expectedParamTypes,
 boolean parametersProvided)

Parameters:

expressionString - The original expression

canonicalForm - The canonical form of the expression, which is what equality compares

expectedReturnType - The expected return type

expectedParamTypes - The expected parameter types

parametersProvided - Whether the parameters are provided by the expression itself

Method Details

evaluateBase

protected abstract @Nullable Object evaluateBase(jakarta.el.ELContext context)

Evaluates the base object the method is invoked on, null for a method expression consisting of a single identifier.

Parameters:

context - The context

Returns:

The base object

evaluateProperty

protected abstract @Nullable Object evaluateProperty(jakarta.el.ELContext context)

Parameters:

context - The context

Returns:

The name of the invoked method

doInvoke

protected abstract @Nullable Object doInvoke(jakarta.el.ELContext context,
 @Nullable Object[] arguments)

Performs the compiled invocation.

Parameters:

context - The context

arguments - The arguments passed to invoke(ELContext, Object[])

Returns:

The result of the invocation, before the coercion to the expected return type

evaluateArguments

protected Object @Nullable [] evaluateArguments(jakarta.el.ELContext context)

Evaluates the parameters an expression such as ${bean.method(a, b)} provides itself.

Parameters:

context - The context

Returns:

The evaluated parameters, null for an expression that does not provide them

invoke

public @Nullable Object invoke(jakarta.el.ELContext context,
 @Nullable Object[] params)

Specified by:

invoke in class jakarta.el.MethodExpression

getMethodInfo

public jakarta.el.MethodInfo getMethodInfo(jakarta.el.ELContext context)

Specified by:

getMethodInfo in class jakarta.el.MethodExpression

getMethodReference

public jakarta.el.MethodReference getMethodReference(jakarta.el.ELContext context)

Overrides:

getMethodReference in class jakarta.el.MethodExpression

isParametersProvided

public boolean isParametersProvided()

Overrides:

isParametersProvided in class jakarta.el.MethodExpression

getExpectedReturnType

protected Class<?> getExpectedReturnType()

Returns:

The expected return type

getExpectedParamTypes

protected Class<?>[] getExpectedParamTypes()

Returns:

The expected parameter types

getExpressionString

public final String getExpressionString()

Specified by:

getExpressionString in interface CompiledExpression

Specified by:

getExpressionString in class jakarta.el.Expression

Returns:

The original expression string

isLiteralText

public boolean isLiteralText()

Specified by:

isLiteralText in class jakarta.el.Expression

equals

public boolean equals(Object obj)

Specified by:

equals in class jakarta.el.Expression

hashCode

public int hashCode()

Specified by:

hashCode in class jakarta.el.Expression

toString

public String toString()

Overrides:

toString in class Object