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Fix constraints initialization

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This commit is contained in:
Antonin Delpeuch 2018-10-21 18:54:06 +01:00
parent d4bdd37bda
commit 9c58b8f51f
1 changed files with 2 additions and 1 deletions
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main/src/com/google/refine/model/Column.java
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@ -36,6 +36,7 @@ package com.google.refine.model;
import java.io.IOException;
import java.io.Writer;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
@ -67,7 +68,7 @@ public class Column {
private String format = Field.FIELD_FORMAT_DEFAULT;
private String title = "";
private String description = "";
private Map<String, Object> constraints = null;
private Map<String, Object> constraints = Collections.emptyMap();
transient protected Map<String, Object> _precomputes;