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

Class CollectionFilter

java.lang.Object

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

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

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

All Implemented Interfaces:

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

public abstract class CollectionFilter
extends Unary

Some kind of operation that is performed for each element of a collection. I.e. x.<operation>(y | <expression&rt;)

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
LambdaExpression	lambda

Fields inherited from class org.eclipse.equinox.internal.p2.metadata.expression.Unary

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	CollectionFilter(Expression collection, LambdaExpression lambda)

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.
static void	appendProlog(java.lang.StringBuffer bld, Variable rootVariable, Expression lhs, java.lang.String operator)
int	compareTo(Expression e)
boolean	equals(java.lang.Object o)
java.lang.Object	evaluate(IEvaluationContext context) Evaluate this expression with given context and variables.
protected abstract java.lang.Object	evaluate(IEvaluationContext context, java.util.Iterator<?> iterator)
java.util.Iterator<?>	evaluateAsIterator(IEvaluationContext context)
protected java.util.Iterator<?>	evaluateAsIterator(IEvaluationContext context, java.util.Iterator<?> iterator)
protected java.util.Iterator<?>	getInnerIterator(IEvaluationContext context)
int	getPriority()
int	hashCode()
void	toString(java.lang.StringBuffer bld, Variable rootVariable)

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

getOperand

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

appendOperand, assertLength, assertLength, compare, elementsToString, equals, getIndexCandidateMembers, getOperator, 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

lambda

public final LambdaExpression lambda

Constructor Detail

CollectionFilter

protected CollectionFilter(Expression collection,
                           LambdaExpression lambda)

Method Detail

appendProlog

public static void appendProlog(java.lang.StringBuffer bld,
                                Variable rootVariable,
                                Expression lhs,
                                java.lang.String operator)

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 Unary

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 Unary

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Unary

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

Overrides:

evaluate in class Unary

Parameters:

context - The evaluation context

Returns:

The result of the evaluation.

evaluateAsIterator

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

Overrides:

evaluateAsIterator in class Expression

toString

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

Overrides:

toString in class Unary

hashCode

public int hashCode()

Overrides:

hashCode in class Unary

getPriority

public int getPriority()

Specified by:

getPriority in class Expression

evaluate

protected abstract java.lang.Object evaluate(IEvaluationContext context,
                                             java.util.Iterator<?> iterator)

evaluateAsIterator

protected java.util.Iterator<?> evaluateAsIterator(IEvaluationContext context,
                                                   java.util.Iterator<?> iterator)

getInnerIterator

protected java.util.Iterator<?> getInnerIterator(IEvaluationContext context)