| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.rya.indexing.pcj.fluo.app.query; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| |
| import edu.umd.cs.findbugs.annotations.Nullable; |
| import edu.umd.cs.findbugs.annotations.DefaultAnnotation; |
| import edu.umd.cs.findbugs.annotations.NonNull; |
| import net.jcip.annotations.Immutable; |
| |
| import org.apache.commons.lang3.builder.EqualsBuilder; |
| import org.apache.rya.indexing.pcj.storage.accumulo.VariableOrder; |
| |
| import com.google.common.base.Objects; |
| |
| /** |
| * Metadata that is specific to Statement Pattern nodes. |
| */ |
| @Immutable |
| @DefaultAnnotation(NonNull.class) |
| public class StatementPatternMetadata extends CommonNodeMetadata { |
| |
| private final String statementPattern; |
| private final String parentNodeId; |
| |
| /** |
| * Constructs an instance of {@link StatementPatternMetadata}. |
| * |
| * @param nodeId - The ID the Fluo app uses to reference this node. (not null) |
| * @param varOrder - The variable order of binding sets that are emitted by this node. (not null) |
| * @param statementPattern - The statement pattern new statements are matched against. (not null) |
| * @param parentNodeId - The node id of this node's parent. (not null) |
| */ |
| public StatementPatternMetadata( |
| final String nodeId, |
| final VariableOrder varOrder, |
| final String statementPattern, |
| final String parentNodeId) { |
| super(nodeId, varOrder); |
| this.statementPattern = checkNotNull(statementPattern); |
| this.parentNodeId = checkNotNull(parentNodeId); |
| } |
| |
| /** |
| * @return The statement pattern new statements are matched against. |
| */ |
| public String getStatementPattern() { |
| return statementPattern; |
| } |
| |
| /** |
| * @return The node id of this node's parent. |
| */ |
| public String getParentNodeId() { |
| return parentNodeId; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hashCode( |
| super.getNodeId(), |
| super.getVariableOrder(), |
| statementPattern, |
| parentNodeId); |
| } |
| |
| @Override |
| public boolean equals(final Object o) { |
| if(this == o) { |
| return true; |
| } |
| |
| if(o instanceof StatementPatternMetadata) { |
| if(super.equals(o)) { |
| final StatementPatternMetadata spMetadata = (StatementPatternMetadata)o; |
| return new EqualsBuilder() |
| .append(statementPattern, spMetadata.statementPattern) |
| .append(parentNodeId, spMetadata.parentNodeId) |
| .isEquals(); |
| } |
| return false; |
| } |
| |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return new StringBuilder() |
| .append("Statement Pattern Metadata {\n") |
| .append(" Node ID: " + super.getNodeId() + "\n") |
| .append(" Variable Order: " + super.getVariableOrder() + "\n") |
| .append(" Parent Node ID: " + parentNodeId + "\n") |
| .append(" Statement Pattern: " + statementPattern + "\n") |
| .append("}") |
| .toString(); |
| } |
| |
| /** |
| * Creates a new {@link Builder} for this class. |
| * |
| * @param nodeId - The ID the Fluo app uses to reference this node. (not null) |
| * @return A new {@link Builder} for this class. |
| */ |
| public static Builder builder(final String nodeId) { |
| return new Builder(nodeId); |
| } |
| |
| /** |
| * Builds instances of {@link StatementPatternMetadata}. |
| */ |
| @DefaultAnnotation(NonNull.class) |
| public static final class Builder implements CommonNodeMetadata.Builder { |
| |
| private final String nodeId; |
| private VariableOrder varOrder; |
| private String statementPattern; |
| private String parentNodeId; |
| |
| /** |
| * Constructs an instance of {@link Builder}. |
| * |
| * @param nodeId - The ID the Fluo app uses to reference this node. (not null) |
| */ |
| public Builder(final String nodeId) { |
| this.nodeId = checkNotNull(nodeId); |
| } |
| |
| /** |
| * @return The ID the Fluo app uses to reference this node. |
| */ |
| public String getNodeId() { |
| return nodeId; |
| } |
| |
| /** |
| * Sets the variable order of binding sets that are emitted by this node. |
| * |
| * @param varOrder - The variable order of binding sets that are emitted by this node. |
| * @return This builder so that method invocations may be chained. |
| */ |
| public Builder setVarOrder(@Nullable final VariableOrder varOrder) { |
| this.varOrder = varOrder; |
| return this; |
| } |
| |
| @Override |
| public VariableOrder getVariableOrder() { |
| return varOrder; |
| } |
| |
| /** |
| * Sets the statement pattern new statements are matched against. |
| * |
| * @param statementPattern - The statement pattern new statements are matched against. |
| * @return This builder so that method invocations may be chained. |
| */ |
| public Builder setStatementPattern(@Nullable final String statementPattern) { |
| this.statementPattern = statementPattern; |
| return this; |
| } |
| |
| /** |
| * Sets the node id of this node's parent. |
| * |
| * @param parentNodeId - The node id of this node's parent. |
| * @return This builder so that method invocations may be chained. |
| */ |
| public Builder setParentNodeId(@Nullable final String parentNodeId) { |
| this.parentNodeId = parentNodeId; |
| return this; |
| } |
| |
| /** |
| * @return Constructs an instance of {@link StatementPatternMetadata} using the values that are in this builder. |
| */ |
| public StatementPatternMetadata build() { |
| return new StatementPatternMetadata( |
| nodeId, |
| varOrder, |
| statementPattern, |
| parentNodeId); |
| } |
| } |
| } |