1 files changed, 0 insertions, 134 deletions
diff --git a/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/CollectionFilter.java b/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/CollectionFilter.java
deleted file mode 100644
index 5a1e43fb9..000000000
--- a/bundles/org.eclipse.equinox.p2.metadata/src/org/eclipse/equinox/internal/p2/metadata/expression/CollectionFilter.java
+++ /dev/null
@@ -1,134 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2009 Cloudsmith Inc. and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     Cloudsmith Inc. - initial API and implementation
- *******************************************************************************/
-package org.eclipse.equinox.internal.p2.metadata.expression;
-
-import java.util.Iterator;
-import org.eclipse.equinox.p2.metadata.expression.IEvaluationContext;
-import org.eclipse.equinox.p2.metadata.expression.IExpressionVisitor;
-import org.eclipse.equinox.p2.metadata.index.IIndex;
-import org.eclipse.equinox.p2.metadata.index.IIndexProvider;
-
-/**
- * Some kind of operation that is performed for each element of a collection. I.e.
- * <code>x.&lt;operation&gt;(y | &lt;expression&rt;)</code>
- */
-public abstract class CollectionFilter extends Unary {
-	public static void appendProlog(StringBuffer bld, Variable rootVariable, Expression lhs, String operator) {
-		if (lhs != rootVariable) {
-			appendOperand(bld, rootVariable, lhs, PRIORITY_COLLECTION);
-			bld.append('.');
-		}
-		bld.append(operator);
-		bld.append('(');
-	}
-
-	public final LambdaExpression lambda;
-
-	protected CollectionFilter(Expression collection, LambdaExpression lambda) {
-		super(collection);
-		this.lambda = lambda;
-	}
-
-	public boolean accept(IExpressionVisitor visitor) {
-		return super.accept(visitor) && lambda.accept(visitor);
-	}
-
-	public int compareTo(Expression e) {
-		int cmp = super.compareTo(e);
-		if (cmp == 0)
-			cmp = lambda.compareTo(((CollectionFilter) e).lambda);
-		return cmp;
-	}
-
-	public boolean equals(Object o) {
-		return super.equals(o) && lambda.equals(((CollectionFilter) o).lambda);
-	}
-
-	public final Object evaluate(IEvaluationContext context) {
-		Iterator<?> lval = getInnerIterator(context);
-		context = lambda.prolog(context);
-		return evaluate(context, lval);
-	}
-
-	public final Iterator<?> evaluateAsIterator(IEvaluationContext context) {
-		Iterator<?> lval = getInnerIterator(context);
-		context = lambda.prolog(context);
-		return evaluateAsIterator(context, lval);
-	}
-
-	public void toString(StringBuffer bld, Variable rootVariable) {
-		appendProlog(bld, rootVariable, operand, getOperator());
-		appendOperand(bld, rootVariable, lambda, PRIORITY_LAMBDA);
-		bld.append(')');
-	}
-
-	public int hashCode() {
-		int result = 31 + operand.hashCode();
-		return 31 * result + lambda.hashCode();
-	}
-
-	public int getPriority() {
-		return PRIORITY_COLLECTION;
-	}
-
-	protected abstract Object evaluate(final IEvaluationContext context, Iterator<?> iterator);
-
-	protected Iterator<?> evaluateAsIterator(IEvaluationContext context, Iterator<?> iterator) {
-		throw new UnsupportedOperationException();
-	}
-
-	private transient IIndexProvider<?> lastIndexProvider;
-	private transient IIndex<?> lastIndex;
-
-	private IIndex<?> getIndex(Class<?> elementClass, IIndexProvider<?> indexProvider) {
-		if (lastIndexProvider == indexProvider)
-			return lastIndex;
-
-		for (String member : getIndexCandidateMembers(elementClass, lambda.getItemVariable(), lambda.getOperand())) {
-			IIndex<?> index = indexProvider.getIndex(member);
-			if (index != null)
-				lastIndex = index;
-		}
-		lastIndexProvider = indexProvider;
-		return lastIndex;
-	}
-
-	protected Iterator<?> getInnerIterator(IEvaluationContext context) {
-		Object collection = operand.evaluate(context);
-		if (collection instanceof Everything<?>) {
-			// Try to find an index
-			//
-			IIndexProvider<?> indexProvider = context.getIndexProvider();
-			if (indexProvider != null) {
-				Class<?> elementClass = ((Everything<?>) collection).getElementClass();
-				IIndex<?> index = getIndex(elementClass, indexProvider);
-				if (index != null) {
-					Iterator<?> indexed = index.getCandidates(context, lambda.getItemVariable(), lambda.getOperand());
-					if (indexed != null)
-						return indexed;
-				}
-			}
-		}
-
-		// No index. We need every element
-		if (collection instanceof IRepeatableIterator<?>)
-			return ((IRepeatableIterator<?>) collection).getCopy();
-
-		Iterator<?> itor = RepeatableIterator.create(collection);
-		if (operand instanceof Variable)
-			((Variable) operand).setValue(context, itor);
-		return itor;
-	}
-
-	int countAccessToEverything() {
-		return operand.countAccessToEverything() + lambda.countAccessToEverything();
-	}
-}