package org.embulk.spi;
import java.util.Objects;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import org.embulk.spi.type.Type;
import org.embulk.spi.type.BooleanType;
import org.embulk.spi.type.DoubleType;
import org.embulk.spi.type.LongType;
import org.embulk.spi.type.TimestampType;
import org.embulk.spi.type.StringType;
import org.embulk.spi.type.JsonType;
public class Column
{
private final int index;
private final String name;
private final Type type;
@JsonCreator
public Column(
@JsonProperty("index") int index,
@JsonProperty("name") String name,
@JsonProperty("type") Type type)
{
this.index = index;
this.name = name;
this.type = type;
}
@JsonProperty("index")
public int getIndex()
{
return index;
}
@JsonProperty("name")
public String getName()
{
return name;
}
@JsonProperty("type")
public Type getType()
{
return type;
}
public void visit(ColumnVisitor visitor)
{
if (type instanceof BooleanType) {
visitor.booleanColumn(this);
} else if (type instanceof LongType) {
visitor.longColumn(this);
} else if (type instanceof DoubleType) {
visitor.doubleColumn(this);
} else if (type instanceof StringType) {
visitor.stringColumn(this);
} else if (type instanceof TimestampType) {
visitor.timestampColumn(this);
} else if (type instanceof JsonType) {
visitor.jsonColumn(this);
} else {
assert(false);
}
}
@Override
public boolean equals(Object obj)
{
if (this == obj) {
return true;
}
if (!(obj instanceof Column)) {
return false;
}
Column other = (Column) obj;
return Objects.equals(index, other.index) &&
Objects.equals(name, other.name) &&
Objects.equals(type, other.type);
}
@Override
public int hashCode()
{
return Objects.hash(index, name, type);
}
@Override
public String toString()
{
return String.format("Column{index:%d, name:%s, type:%s}",
getIndex(), getName(), getType().getName());
}
}