Klasse IfStatement
IfStatement: if ( Expression ) Statement [ else Statement]
- Seit:
- 2.0
-
Feldübersicht
Modifizierer und TypFeldBeschreibungstatic final ChildPropertyDescriptor
The "elseStatement" structural property of this node type (child type:Statement
).static final ChildPropertyDescriptor
The "expression" structural property of this node type (child type:Expression
).static final ChildPropertyDescriptor
The "thenStatement" structural property of this node type (child type:Statement
).Von Klasse geerbte Felder org.aspectj.org.eclipse.jdt.core.dom.ASTNode
ANNOTATION_TYPE_DECLARATION, ANNOTATION_TYPE_MEMBER_DECLARATION, ANONYMOUS_CLASS_DECLARATION, ARRAY_ACCESS, ARRAY_CREATION, ARRAY_INITIALIZER, ARRAY_TYPE, ASSERT_STATEMENT, ASSIGNMENT, BLOCK, BLOCK_COMMENT, BOOLEAN_LITERAL, BREAK_STATEMENT, CASE_DEFAULT_EXPRESSION, CAST_EXPRESSION, CATCH_CLAUSE, CHARACTER_LITERAL, CLASS_INSTANCE_CREATION, COMPILATION_UNIT, CONDITIONAL_EXPRESSION, CONSTRUCTOR_INVOCATION, CONTINUE_STATEMENT, CREATION_REFERENCE, DIMENSION, DO_STATEMENT, EMPTY_STATEMENT, ENHANCED_FOR_STATEMENT, ENHANCED_FOR_WITH_RECORD_PATTERN, ENUM_CONSTANT_DECLARATION, ENUM_DECLARATION, EXPORTS_DIRECTIVE, EXPRESSION_METHOD_REFERENCE, EXPRESSION_STATEMENT, FIELD_ACCESS, FIELD_DECLARATION, FOR_STATEMENT, GUARDED_PATTERN, IF_STATEMENT, IMPORT_DECLARATION, INFIX_EXPRESSION, INITIALIZER, INSTANCEOF_EXPRESSION, INTERSECTION_TYPE, JAVADOC, JAVADOC_REGION, JAVADOC_TEXT_ELEMENT, LABELED_STATEMENT, LAMBDA_EXPRESSION, LINE_COMMENT, MALFORMED, MARKER_ANNOTATION, MEMBER_REF, MEMBER_VALUE_PAIR, METHOD_DECLARATION, METHOD_INVOCATION, METHOD_REF, METHOD_REF_PARAMETER, MODIFIER, MODULE_DECLARATION, MODULE_MODIFIER, MODULE_QUALIFIED_NAME, NAME_QUALIFIED_TYPE, NORMAL_ANNOTATION, NULL_LITERAL, NULL_PATTERN, NUMBER_LITERAL, OPENS_DIRECTIVE, ORIGINAL, PACKAGE_DECLARATION, PARAMETERIZED_TYPE, PARENTHESIZED_EXPRESSION, PATTERN_INSTANCEOF_EXPRESSION, POSTFIX_EXPRESSION, PREFIX_EXPRESSION, PRIMITIVE_TYPE, PROTECT, PROVIDES_DIRECTIVE, QUALIFIED_NAME, QUALIFIED_TYPE, RECORD_DECLARATION, RECORD_PATTERN, RECOVERED, REQUIRES_DIRECTIVE, RETURN_STATEMENT, SIMPLE_NAME, SIMPLE_TYPE, SINGLE_MEMBER_ANNOTATION, SINGLE_VARIABLE_DECLARATION, STRING_LITERAL, SUPER_CONSTRUCTOR_INVOCATION, SUPER_FIELD_ACCESS, SUPER_METHOD_INVOCATION, SUPER_METHOD_REFERENCE, SWITCH_CASE, SWITCH_EXPRESSION, SWITCH_STATEMENT, SYNCHRONIZED_STATEMENT, TAG_ELEMENT, TAG_PROPERTY, TEXT_BLOCK, TEXT_ELEMENT, THIS_EXPRESSION, THROW_STATEMENT, TRY_STATEMENT, TYPE_DECLARATION, TYPE_DECLARATION_STATEMENT, TYPE_LITERAL, TYPE_METHOD_REFERENCE, TYPE_PARAMETER, TYPE_PATTERN, UNION_TYPE, USES_DIRECTIVE, VARIABLE_DECLARATION_EXPRESSION, VARIABLE_DECLARATION_FRAGMENT, VARIABLE_DECLARATION_STATEMENT, WHILE_STATEMENT, WILDCARD_TYPE, YIELD_STATEMENT
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Methodenübersicht
Modifizierer und TypMethodeBeschreibungReturns the "else" part of this if statement, ornull
if this if statement has no "else" part.Returns the expression of this if statement.Returns the "then" part of this if statement.static List
propertyDescriptors
(int apiLevel) Returns a list of structural property descriptors for this node type.void
setElseStatement
(Statement statement) Sets or clears the "else" part of this if statement.void
setExpression
(Expression expression) Sets the condition of this if statement.void
setThenStatement
(Statement statement) Sets the "then" part of this if statement.Von Klasse geerbte Methoden org.aspectj.org.eclipse.jdt.core.dom.Statement
getLeadingComment, setLeadingComment
Von Klasse geerbte Methoden org.aspectj.org.eclipse.jdt.core.dom.ASTNode
accept, copySubtree, copySubtrees, delete, equals, getAST, getFlags, getLength, getLocationInParent, getNodeType, getParent, getProperty, getRoot, getStartPosition, getStructuralProperty, hashCode, nodeClassForType, properties, setFlags, setProperty, setSourceRange, setStructuralProperty, structuralPropertiesForType, subtreeBytes, subtreeMatch, toString
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Felddetails
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EXPRESSION_PROPERTY
The "expression" structural property of this node type (child type:Expression
).- Seit:
- 3.0
-
THEN_STATEMENT_PROPERTY
The "thenStatement" structural property of this node type (child type:Statement
).- Seit:
- 3.0
-
ELSE_STATEMENT_PROPERTY
The "elseStatement" structural property of this node type (child type:Statement
).- Seit:
- 3.0
-
-
Methodendetails
-
propertyDescriptors
Returns a list of structural property descriptors for this node type. Clients must not modify the result.- Parameter:
apiLevel
- the API level; one of theAST.JLS*
constants- Gibt zurück:
- a list of property descriptors (element type:
StructuralPropertyDescriptor
) - Seit:
- 3.0
-
getExpression
Returns the expression of this if statement.- Gibt zurück:
- the expression node
-
setExpression
Sets the condition of this if statement.- Parameter:
expression
- the expression node- Löst aus:
IllegalArgumentException
- if:- the node belongs to a different AST
- the node already has a parent
- a cycle in would be created
-
getThenStatement
Returns the "then" part of this if statement.- Gibt zurück:
- the "then" statement node
-
setThenStatement
Sets the "then" part of this if statement.Special note: The Java language does not allow a local variable declaration to appear as the "then" part of an if statement (they may only appear within a block). However, the AST will allow a
VariableDeclarationStatement
as the thenStatement of aIfStatement
. To get something that will compile, be sure to embed theVariableDeclarationStatement
inside aBlock
.- Parameter:
statement
- the "then" statement node- Löst aus:
IllegalArgumentException
- if:- the node belongs to a different AST
- the node already has a parent
- a cycle in would be created
-
getElseStatement
Returns the "else" part of this if statement, ornull
if this if statement has no "else" part.Note that there is a subtle difference between having no else statement and having an empty statement ("{}") or null statement (";").
- Gibt zurück:
- the "else" statement node, or
null
if none
-
setElseStatement
Sets or clears the "else" part of this if statement.Note that there is a subtle difference between having no else part (as in
"if(true){}"
) and having an empty block (as in "if(true){}else{}") or null statement (as in "if(true){}else;").Special note: The Java language does not allow a local variable declaration to appear as the "else" part of an if statement (they may only appear within a block). However, the AST will allow a
VariableDeclarationStatement
as the elseStatement of aIfStatement
. To get something that will compile, be sure to embed theVariableDeclarationStatement
inside aBlock
.- Parameter:
statement
- the "else" statement node, ornull
if there is none- Löst aus:
IllegalArgumentException
- if:- the node belongs to a different AST
- the node already has a parent
- a cycle in would be created
-