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ColumnProcessor.java
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ColumnProcessor.java
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package com.annotatedsql.processor.sql;
import com.annotatedsql.AnnotationParsingException;
import com.annotatedsql.annotation.sql.Autoincrement;
import com.annotatedsql.annotation.sql.Column;
import com.annotatedsql.annotation.sql.NotNull;
import com.annotatedsql.annotation.sql.PrimaryKey;
import com.annotatedsql.annotation.sql.Unique;
import com.annotatedsql.util.TextUtils;
import javax.lang.model.element.VariableElement;
public class ColumnProcessor {
/**
* @throws AnnotationParsingException
*/
public static ColumnMeta create(VariableElement f) {
String columnName = null;
try {
columnName = (String) f.getConstantValue();
} catch (Exception e) {
throw new AnnotationParsingException("Can not find column name", f);
}
Column column = f.getAnnotation(Column.class);
boolean isPrimary = f.getAnnotation(PrimaryKey.class) != null;
boolean isAutoIncrement = f.getAnnotation(Autoincrement.class) != null;
boolean isNotNull = f.getAnnotation(NotNull.class) != null;
Unique unique = f.getAnnotation(Unique.class);
StringBuilder sql = new StringBuilder(" ");
sql.append(columnName).append(' ').append(column.type());
if (isPrimary) {
sql.append(" PRIMARY KEY");
}
if (isAutoIncrement) {
sql.append(" AUTOINCREMENT");
}
if (isNotNull) {
sql.append(" NOT NULL");
}
if (unique != null) {
sql.append(" UNIQUE ON CONFLICT ").append(unique.type());
}
String defVal = column.defVal();
if (!TextUtils.isEmpty(defVal)) {
sql.append(" DEFAULT (").append(defVal).append(")");
}
String extra = column.extra();
if (!TextUtils.isEmpty(extra)) {
sql.append(" ").append(extra);
}
return new ColumnMeta(columnName, isPrimary, sql.toString(), column.type(), isNotNull || isAutoIncrement || isPrimary);
}
static class ColumnMeta {
final String sql;
final boolean isPrimary;
final String name;
final Column.Type dataType;
final boolean isNotNull;
public ColumnMeta(String name, boolean isPrimary, String sql, Column.Type sqlType, boolean isNotNull) {
super();
this.name = name;
this.sql = sql;
this.isPrimary = isPrimary;
dataType = sqlType;
this.isNotNull = isNotNull;
}
}
}