org.eclipse.jdt.core.dom
Class InfixExpression

java.lang.Object
  org.eclipse.jdt.core.dom.ASTNode
      org.eclipse.jdt.core.dom.Expression
          org.eclipse.jdt.core.dom.InfixExpression

public class InfixExpression
extends Expression

Infix expression AST node type.

 InfixExpression:
    Expression InfixOperator Expression { InfixOperator Expression } 
 

Since:

2.0

Nested Class Summary

static class

InfixExpression.Operator Infix operators (typesafe enumeration).

Field Summary

static ChildListPropertyDescriptor	EXTENDED_OPERANDS_PROPERTY The "extendedOperands" structural property of this node type.
static ChildPropertyDescriptor	LEFT_OPERAND_PROPERTY The "leftOperand" structural property of this node type.
static SimplePropertyDescriptor	OPERATOR_PROPERTY The "operator" structural property of this node type.
static ChildPropertyDescriptor	RIGHT_OPERAND_PROPERTY The "rightOperand" structural property of this node type.

Fields inherited from class 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, CAST_EXPRESSION, CATCH_CLAUSE, CHARACTER_LITERAL, CLASS_INSTANCE_CREATION, COMPILATION_UNIT, CONDITIONAL_EXPRESSION, CONSTRUCTOR_INVOCATION, CONTINUE_STATEMENT, DO_STATEMENT, EMPTY_STATEMENT, ENHANCED_FOR_STATEMENT, ENUM_CONSTANT_DECLARATION, ENUM_DECLARATION, EXPRESSION_STATEMENT, FIELD_ACCESS, FIELD_DECLARATION, FOR_STATEMENT, IF_STATEMENT, IMPORT_DECLARATION, INFIX_EXPRESSION, INITIALIZER, INSTANCEOF_EXPRESSION, JAVADOC, LABELED_STATEMENT, LINE_COMMENT, MALFORMED, MARKER_ANNOTATION, MEMBER_REF, MEMBER_VALUE_PAIR, METHOD_DECLARATION, METHOD_INVOCATION, METHOD_REF, METHOD_REF_PARAMETER, MODIFIER, NORMAL_ANNOTATION, NULL_LITERAL, NUMBER_LITERAL, ORIGINAL, PACKAGE_DECLARATION, PARAMETERIZED_TYPE, PARENTHESIZED_EXPRESSION, POSTFIX_EXPRESSION, PREFIX_EXPRESSION, PRIMITIVE_TYPE, PROTECT, QUALIFIED_NAME, QUALIFIED_TYPE, RECOVERED, RETURN_STATEMENT, SIMPLE_NAME, SIMPLE_TYPE, SINGLE_MEMBER_ANNOTATION, SINGLE_VARIABLE_DECLARATION, STRING_LITERAL, SUPER_CONSTRUCTOR_INVOCATION, SUPER_FIELD_ACCESS, SUPER_METHOD_INVOCATION, SWITCH_CASE, SWITCH_STATEMENT, SYNCHRONIZED_STATEMENT, TAG_ELEMENT, TEXT_ELEMENT, THIS_EXPRESSION, THROW_STATEMENT, TRY_STATEMENT, TYPE_DECLARATION, TYPE_DECLARATION_STATEMENT, TYPE_LITERAL, TYPE_PARAMETER, VARIABLE_DECLARATION_EXPRESSION, VARIABLE_DECLARATION_FRAGMENT, VARIABLE_DECLARATION_STATEMENT, WHILE_STATEMENT, WILDCARD_TYPE

Method Summary

java.util.List	extendedOperands() Returns the live list of extended operands.
Expression	getLeftOperand() Returns the left operand of this infix expression.
InfixExpression.Operator	getOperator() Returns the operator of this infix expression.
Expression	getRightOperand() Returns the right operand of this infix expression.
boolean	hasExtendedOperands() Returns where there are any extended operands.
static java.util.List	propertyDescriptors(int apiLevel) Returns a list of structural property descriptors for this node type.
void	setLeftOperand(Expression expression) Sets the left operand of this infix expression.
void	setOperator(InfixExpression.Operator operator) Sets the operator of this infix expression.
void	setRightOperand(Expression expression) Sets the right operand of this infix expression.

Methods inherited from class org.eclipse.jdt.core.dom.Expression

resolveBoxing, resolveConstantExpressionValue, resolveTypeBinding, resolveUnboxing

Methods inherited from class 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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

LEFT_OPERAND_PROPERTY

public static final ChildPropertyDescriptor LEFT_OPERAND_PROPERTY

The "leftOperand" structural property of this node type.

Since:

3.0

OPERATOR_PROPERTY

public static final SimplePropertyDescriptor OPERATOR_PROPERTY

The "operator" structural property of this node type.

Since:

3.0

RIGHT_OPERAND_PROPERTY

public static final ChildPropertyDescriptor RIGHT_OPERAND_PROPERTY

The "rightOperand" structural property of this node type.

Since:

3.0

EXTENDED_OPERANDS_PROPERTY

public static final ChildListPropertyDescriptor EXTENDED_OPERANDS_PROPERTY

The "extendedOperands" structural property of this node type.

Since:

3.0

Method Detail

propertyDescriptors

public static java.util.List propertyDescriptors(int apiLevel)

Returns a list of structural property descriptors for this node type. Clients must not modify the result.

Parameters:

apiLevel - the API level; one of the AST.JLS* constants

Returns:

a list of property descriptors (element type: StructuralPropertyDescriptor)

Since:

3.0

getOperator

public InfixExpression.Operator getOperator()

Returns the operator of this infix expression.

Returns:

the infix operator

setOperator

public void setOperator(InfixExpression.Operator operator)

Sets the operator of this infix expression.

Parameters:

operator - the infix operator

Throws:

java.lang.IllegalArgumentException - if the argument is incorrect

getLeftOperand

public Expression getLeftOperand()

Returns the left operand of this infix expression.

Returns:

the left operand node

setLeftOperand

public void setLeftOperand(Expression expression)

Sets the left operand of this infix expression.

Parameters:

expression - the left operand node

Throws:

java.lang.IllegalArgumentException - if:

• the node belongs to a different AST
• the node already has a parent
• a cycle in would be created

getRightOperand

public Expression getRightOperand()

Returns the right operand of this infix expression.

Returns:

the right operand node

setRightOperand

public void setRightOperand(Expression expression)

Sets the right operand of this infix expression.

Parameters:

expression - the right operand node

Throws:

java.lang.IllegalArgumentException - if:

• the node belongs to a different AST
• the node already has a parent
• a cycle in would be created

hasExtendedOperands

public boolean hasExtendedOperands()

Returns where there are any extended operands.

Returns:

true if there are one or more extended operands, and false if there are no extended operands

extendedOperands

public java.util.List extendedOperands()

Returns the live list of extended operands.

The extended operands is the preferred way of representing deeply nested expressions of the form L op R op R2 op R3... where the same operator appears between all the operands (the most common case being lengthy string concatenation expressions). Using the extended operands keeps the trees from getting too deep; this decreases the risk is running out of thread stack space at runtime when traversing such trees. ((a + b) + c) + d would be translated to: leftOperand: a rightOperand: b extendedOperands: {c, d} operator: +

Returns:

the live list of extended operands (element type: Expression)