oracle.javatools.parser.java.v2.model.expression

Interface SourceLambdaExpression

All Superinterfaces:

CompiledExpression, Element, JavaElement, JavaHasType, SourceElement, SourceExpression

public interface SourceLambdaExpression
extends SourceExpression

Represents a lambda expression, which is an expression new in JDK8 and higher.

Since:

12.1.2.0.0

Field Summary

Fields inherited from interface oracle.javatools.parser.java.v2.model.expression.SourceExpression

EMPTY_ARRAY

Fields inherited from interface oracle.javatools.parser.java.v2.model.SourceElement

CHILDREN_ALL, CHILDREN_BLANKLINES, CHILDREN_COMMENTS, CHILDREN_default, CHILDREN_none, CHILDREN_REGULAR, PRINT_ALL, REFORMAT_ALL, REFORMAT_INDENT

Method Summary

Methods

Modifier and Type	Method and Description
SourceElement	getBody() Get the body of this lambda expression, which can be either a SourceExpression or a SourceBlock.
SourceFormalParameterList	getFormalParameterList() Get the formal parameter list.
java.util.List<SourceLambdaParameter>	getFormalParameters() Get the formal parameters.
JavaType[]	getFormalParameterTypes() Get the formal parameter types.
JavaType	getResolvedType() Get the resolved type of this lambda expression, which is its return type.
JavaMethod	getTargetMethod() Get the method that is the target of this lambda expression IFF the target of this lambda expression is a method in a functional interface.
boolean	hasFormalParameters() Determine if this lambda expression has formal parameters.
boolean	hasInferredFormalParameters() Determine if this lambda expression has inferred formal parameters.

Methods inherited from interface oracle.javatools.parser.java.v2.model.expression.SourceExpression

getConstantValue, getExpressionCode, getFirstOperand, getOperandAt, getOperandCount, getOperands, getOperatorCode, getSecondOperand, getThirdOperand

Methods inherited from interface oracle.javatools.parser.java.v2.model.SourceElement

addSelf, addSelf, addSelfAfter, addSelfBefore, adjustTextIndentation, clearBinding, cloneSelf, compile, getBinding, getChildren, getChildren, getCompiledObject, getContainedElements, getEndOffset, getJdkVersion, getOwningFile, getOwningSourceFile, getParent, getSiblingAfter, getSiblingBefore, getSiblings, getSiblings, getStartOffset, getSymbolKind, getText, getTokens, hasErrors, print, print, reformatSelf, removeSelf, replaceSelf, resolve, setBinding, setContext, visitSelf

Methods inherited from interface oracle.javatools.parser.java.v2.model.expression.CompiledExpression

getResolvedObject

Methods inherited from interface oracle.javatools.parser.java.v2.model.JavaHasType

getUnresolvedType

Methods inherited from interface oracle.javatools.parser.java.v2.model.JavaElement

getElementKind, getFile, getModifiers, getOwner, getSourceElement, isDeprecated, isFinal, isHidden, isSourceElement, isSynthetic, printCompiledInfo

Method Detail

getBody

SourceElement getBody()

Get the body of this lambda expression, which can be either a SourceExpression or a SourceBlock.

Returns:

the body of this lambda expression which might be null

getFormalParameterList

SourceFormalParameterList getFormalParameterList()

Get the formal parameter list.

Returns:

The formal parameter list which will not be null

getFormalParameters

java.util.List<SourceLambdaParameter> getFormalParameters()

Get the formal parameters. Call this if you know there are formal parameters (hasFormalParameters() == true) OR if there are no parameters yet at all and you want to add formal parameters.

Returns:

The list of formal parameters which will not be null. This is a live list and you can add/remove parameters.

getFormalParameterTypes

JavaType[] getFormalParameterTypes()

Get the formal parameter types. Some types might be null IFF the type could not be resolved.

Returns:

The array of formal parameter types, which will not be null, but it might contain null elements.

hasFormalParameters

boolean hasFormalParameters()

Determine if this lambda expression has formal parameters. There are three possibilities with lambda expressions: 1) There are no parameters at all (hasFormalParameters() == false && hasInferredFormalParameters() == false). 2) There are formal parameters (hasFormalParameters() == true). 3) There are inferred formal parameters (hasInferredFormalParameters() == true).

Returns:

True if there are formal parameters

hasInferredFormalParameters

boolean hasInferredFormalParameters()

Determine if this lambda expression has inferred formal parameters. There are three possibilities with lambda expressions: 1) There are no parameters at all (hasFormalParameters() == false && hasInferredFormalParameters() == false). 2) There are formal parameters (hasFormalParameters() == true). 3) There are inferred formal parameters (hasInferredFormalParameters() == true).

Returns:

True if there are inferred formal parameters

getTargetMethod

JavaMethod getTargetMethod()

Get the method that is the target of this lambda expression IFF the target of this lambda expression is a method in a functional interface.

Returns:

A JavaMethod or null if the target method could not be determined

getResolvedType

JavaType getResolvedType()

Get the resolved type of this lambda expression, which is its return type. Lambda expressions might not have an explicit return type, in which case the return type is inferred from the lambda return statements, the context and the target.

Specified by:

getResolvedType in interface JavaHasType

Returns:

A JavaType which can be null.