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

Class Variable

java.lang.Object

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

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

All Implemented Interfaces:

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

public class Variable
extends Expression

An expression representing a variable stack in the current thread.

Nested Class Summary

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

Expression.VariableFinder

Field Summary

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

Constructor and Description
Variable(java.lang.String name)

Method Summary

Modifier and Type	Method and Description
int	compareTo(Expression e)
boolean	equals(java.lang.Object o)
java.lang.Object	evaluate(IEvaluationContext context) Evaluate this expression with given context and variables.
java.util.Iterator<?>	evaluateAsIterator(IEvaluationContext context)
int	getExpressionType() Returns the expression type (see TYPE_xxx constants).
java.lang.String	getName()
java.lang.String	getOperator()
int	getPriority()
int	hashCode()
void	setValue(IEvaluationContext context, java.lang.Object value)
void	toString(java.lang.StringBuffer bld, Variable rootVariable)

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

accept, appendOperand, assertLength, assertLength, compare, elementsToString, equals, getIndexCandidateMembers, hashCode, isReferenceTo, needsTranslationSupport, toLDAPString, toLDAPString, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

Variable

public Variable(java.lang.String name)

Method Detail

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 final 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.

evaluateAsIterator

public java.util.Iterator<?> evaluateAsIterator(IEvaluationContext context)

Overrides:

evaluateAsIterator in class Expression

getExpressionType

public int getExpressionType()

Description copied from interface: IExpression

Returns the expression type (see TYPE_xxx constants).

getName

public java.lang.String getName()

getOperator

public java.lang.String getOperator()

Specified by:

getOperator in class Expression

getPriority

public int getPriority()

Specified by:

getPriority in class Expression

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

setValue

public final void setValue(IEvaluationContext context,
                           java.lang.Object value)

toString

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

Specified by:

toString in class Expression