import quincy 17.2.0

[ceph.git] / ceph / src / arrow / java / vector / src / main / java / org / apache / arrow / vector / types / pojo / DictionaryEncoding.java

diff --git a/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/types/pojo/DictionaryEncoding.java b/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/types/pojo/DictionaryEncoding.java
new file mode 100644 (file)
index 0000000..8d41b92
--- /dev/null
+++ b/ceph/src/arrow/java/vector/src/main/java/org/apache/arrow/vector/types/pojo/DictionaryEncoding.java
@@ -0,0 +1,88 @@
+/*
+ * 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.arrow.vector.types.pojo;
+
+import java.util.Objects;
+
+import org.apache.arrow.vector.types.pojo.ArrowType.Int;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonGetter;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+/**
+ * A POJO representation of Arrow Dictionary metadata.
+ */
+public class DictionaryEncoding {
+
+  private final long id;
+  private final boolean ordered;
+  private final Int indexType;
+
+  /**
+   * Constructs a new instance.
+   *
+   * @param id The ID of the dictionary to use for encoding.
+   * @param ordered Whether the keys in values in the dictionary are ordered.
+   * @param indexType (nullable). The integer type to use for indexing in the dictionary. Defaults to a signed
+   *     32 bit integer.
+   */
+  @JsonCreator
+  public DictionaryEncoding(
+      @JsonProperty("id") long id,
+      @JsonProperty("isOrdered") boolean ordered,
+      @JsonProperty("indexType") Int indexType) {
+    this.id = id;
+    this.ordered = ordered;
+    this.indexType = indexType == null ? new Int(32, true) : indexType;
+  }
+
+  public long getId() {
+    return id;
+  }
+
+  @JsonGetter("isOrdered")
+  public boolean isOrdered() {
+    return ordered;
+  }
+
+  public Int getIndexType() {
+    return indexType;
+  }
+
+  @Override
+  public String toString() {
+    return "DictionaryEncoding[id=" + id + ",ordered=" + ordered + ",indexType=" + indexType + "]";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    } else if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    DictionaryEncoding that = (DictionaryEncoding) o;
+    return id == that.id && ordered == that.ordered && Objects.equals(indexType, that.indexType);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, ordered, indexType);
+  }
+}