pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / queryparser / src / java / org / apache / lucene / queryParser / core / nodes / ParametricQueryNode.java

diff --git a/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/nodes/ParametricQueryNode.java b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/nodes/ParametricQueryNode.java
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+++ b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/core/nodes/ParametricQueryNode.java
@@ -0,0 +1,112 @@
+package org.apache.lucene.queryParser.core.nodes;
+
+/**
+ * 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.
+ */
+
+import org.apache.lucene.queryParser.core.parser.EscapeQuerySyntax;
+
+/**
+ * A {@link ParametricQueryNode} represents LE, LT, GE, GT, EQ, NE query.
+ * Example: date >= "2009-10-10" OR price = 200
+ * 
+ * @deprecated this class will be removed in future. {@link FieldQueryNode} 
+ * should be used instead.
+ */
+@Deprecated
+public class ParametricQueryNode extends FieldQueryNode {
+
+  private static final long serialVersionUID = -5770038129741218116L;
+
+  private CompareOperator operator;
+
+  public enum CompareOperator {
+    LE { 
+      @Override
+      public String toString() { return "<="; }
+    },
+    LT {
+      @Override
+      public String toString() { return "<";  }
+    },
+    GE {
+      @Override
+      public String toString() { return ">="; }
+    },
+    GT {
+      @Override
+      public String toString() { return ">";  }
+    },
+    EQ {
+      @Override
+      public String toString() { return "=";  }
+    },
+    NE {
+      @Override
+      public String toString() { return "!="; }
+    };
+  }
+
+  /**
+   * @param field
+   *          - field name
+   * @param comp
+   *          - CompareOperator
+   * @param value
+   *          - text value
+   * @param begin
+   *          - position in the query string
+   * @param end
+   *          - position in the query string
+   */
+  public ParametricQueryNode(CharSequence field, CompareOperator comp,
+      CharSequence value, int begin, int end) {
+    super(field, value, begin, end);
+    this.operator = comp;
+    setLeaf(true);
+  }
+
+  public CharSequence getOperand() {
+    return getText();
+  }
+
+  @Override
+  public CharSequence toQueryString(EscapeQuerySyntax escapeSyntaxParser) {
+    return this.field + "" + this.operator.toString() + "\"" + this.text + "\"";
+  }
+
+  @Override
+  public String toString() {
+    return "<parametric field='" + this.field + "' operator='"
+        + this.operator.toString() + "' text='" + this.text + "'/>";
+  }
+
+  @Override
+  public ParametricQueryNode cloneTree() throws CloneNotSupportedException {
+    ParametricQueryNode clone = (ParametricQueryNode) super.cloneTree();
+
+    clone.operator = this.operator;
+
+    return clone;
+  }
+
+  /**
+   * @return the operator
+   */
+  public CompareOperator getOperator() {
+    return this.operator;
+  }
+}