org.eclipse.equinox.internal.p2.metadata.expression

Class Unary

java.lang.Object

org.eclipse.equinox.internal.p2.metadata.expression.Expression

org.eclipse.equinox.internal.p2.metadata.expression.Unary

All Implemented Interfaces:

java.lang.Comparable<Expression>, IExpressionConstants, IExpression

Direct Known Subclasses:

CollectionFilter, ContextExpression, LambdaExpression, LDAPFilter, MatchExpression, Member

public abstract class Unary
extends Expression

The abstract base class for all unary expressions

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.equinox.internal.p2.metadata.expression.Expression

Expression.VariableFinder

Field Summary

Fields

Modifier and Type	Field and Description
Expression	operand

Fields inherited from interface org.eclipse.equinox.p2.metadata.expression.IExpression

TYPE_ALL, TYPE_AND, TYPE_ARRAY, TYPE_ASSIGNMENT, TYPE_AT, TYPE_COLLECT, TYPE_CONDITION, TYPE_EQUALS, TYPE_EXISTS, TYPE_FIRST, TYPE_FLATTEN, TYPE_FUNCTION, TYPE_GREATER, TYPE_GREATER_EQUAL, TYPE_INTERSECT, TYPE_LAMBDA, TYPE_LATEST, TYPE_LESS, TYPE_LESS_EQUAL, TYPE_LIMIT, TYPE_LITERAL, TYPE_MATCHES, TYPE_MEMBER, TYPE_NOT, TYPE_NOT_EQUALS, TYPE_OR, TYPE_PARAMETER, TYPE_PIPE, TYPE_SELECT, TYPE_TRAVERSE, TYPE_UNION, TYPE_UNIQUE, TYPE_VARIABLE

Fields inherited from interface org.eclipse.equinox.internal.p2.metadata.expression.IExpressionConstants

KEYWORD_ALL, KEYWORD_BOOLEAN, KEYWORD_CLASS, KEYWORD_COLLECT, KEYWORD_EXISTS, KEYWORD_FALSE, KEYWORD_FILTER, KEYWORD_FIRST, KEYWORD_FLATTEN, KEYWORD_INTERSECT, KEYWORD_IQUERY, KEYWORD_LATEST, KEYWORD_LIMIT, KEYWORD_LOCALIZED_KEYS, KEYWORD_LOCALIZED_MAP, KEYWORD_LOCALIZED_PROPERTY, KEYWORD_NULL, KEYWORD_RANGE, KEYWORD_SATISFIES_ALL, KEYWORD_SATISFIES_ANY, KEYWORD_SELECT, KEYWORD_SET, KEYWORD_TRAVERSE, KEYWORD_TRUE, KEYWORD_UNION, KEYWORD_UNIQUE, KEYWORD_VERSION, OPERATOR_AND, OPERATOR_ARRAY, OPERATOR_ASSIGN, OPERATOR_AT, OPERATOR_EACH, OPERATOR_ELSE, OPERATOR_EQUALS, OPERATOR_GT, OPERATOR_GT_EQUAL, OPERATOR_IF, OPERATOR_LT, OPERATOR_LT_EQUAL, OPERATOR_MATCHES, OPERATOR_MEMBER, OPERATOR_NOT, OPERATOR_NOT_EQUALS, OPERATOR_OR, OPERATOR_PARAMETER, PRIORITY_AND, PRIORITY_ASSIGNMENT, PRIORITY_BINARY, PRIORITY_COLLECTION, PRIORITY_COMMA, PRIORITY_CONDITION, PRIORITY_FUNCTION, PRIORITY_LAMBDA, PRIORITY_LITERAL, PRIORITY_MAX, PRIORITY_MEMBER, PRIORITY_NOT, PRIORITY_OR, PRIORITY_VARIABLE, VARIABLE_EVERYTHING, VARIABLE_THIS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Unary(Expression operand)

Method Summary

Modifier and Type	Method and Description
boolean	accept(IExpressionVisitor visitor) Let the visitor visit this instance and all expressions that this instance contains.
int	compareTo(Expression e)
boolean	equals(java.lang.Object o)
java.lang.Object	evaluate(IEvaluationContext context) Evaluate this expression with given context and variables.
Expression	getOperand()
int	hashCode()
void	toString(java.lang.StringBuffer bld, Variable rootVariable)

Methods inherited from class org.eclipse.equinox.internal.p2.metadata.expression.Expression

appendOperand, assertLength, assertLength, compare, elementsToString, equals, evaluateAsIterator, getIndexCandidateMembers, getOperator, getPriority, hashCode, isReferenceTo, needsTranslationSupport, toLDAPString, toLDAPString, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.equinox.p2.metadata.expression.IExpression

getExpressionType

Field Detail

operand

public final Expression operand

Constructor Detail

Unary

protected Unary(Expression operand)

Method Detail

accept

public boolean accept(IExpressionVisitor visitor)

Description copied from class: Expression

Let the visitor visit this instance and all expressions that this instance contains.

Specified by:

accept in interface IExpression

Overrides:

accept in class Expression

Parameters:

visitor - The visiting visitor.

Returns:

true if the visitor should continue visiting, false otherwise.

compareTo

public int compareTo(Expression e)

Specified by:

compareTo in interface java.lang.Comparable<Expression>

Overrides:

compareTo in class Expression

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Expression

evaluate

public java.lang.Object evaluate(IEvaluationContext context)

Description copied from class: Expression

Evaluate this expression with given context and variables.

Specified by:

evaluate in interface IExpression

Specified by:

evaluate in class Expression

Parameters:

context - The evaluation context

Returns:

The result of the evaluation.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

getOperand

public Expression getOperand()

toString

public void toString(java.lang.StringBuffer bld,
                     Variable rootVariable)

Specified by:

toString in class Expression