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Method Details

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  getName

  public String getName()

  Gets the name of the column.

  Returns:

  the name of the column

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  getType

  public Class<?> getType()

  Gets the Java data type of the column.

  Returns:

  the Java data type of the column

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  getAvroType

  public String getAvroType()

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  getColumnBaseType

  public Type.Column.ColumnBaseType getColumnBaseType()

  Gets the enumeration of the *base* type of the column. This is far more efficient than using getType() and then comparing it to various Java classes, e.g. Integer.class. With this enumeration, switch statements can be used to do different things for different column types. This enumeration is preferred when the same thing needs to be done for all sub-types of a given base type. For example, string has a lot of sub-types; rather than having to group multiple case statements (and ensuring that no applicable enumeration is missed) for Type.Column.ColumnType, this enumeration can be used to cover all string cases.

  Returns:

  the enumeration representing the *base* type of the column

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  getColumnType

  public Type.Column.ColumnType getColumnType()

  Gets the enumeration of the type of the column. This is far more efficient than using hasProperty(String) to check for given column properties. With this enumeration, switch statements can be used to do different things for different column types.

  Returns:

  the enumeration representing the type of the column

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  isDecimal

  public boolean isDecimal()

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  getDecimalPrecision

  public int getDecimalPrecision()

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  getDecimalScale

  public int getDecimalScale()

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  hasDefault

  public boolean hasDefault()

  Determine if the column has a default expression

  Returns:

  True if the column has a default expression

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  getDefault

  public String getDefault()

  Returns the column’s default expression

  Returns:

  The default expression of the column, or null if none exists

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  isNullable

  public boolean isNullable()

  Gets whether the column is nullable.

  Returns:

  whether the column is nullable

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  isArray

  public boolean isArray()

  Determine if the column is an Array type

  Returns:

  True if the column is an Array

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  getArrayType

  public Type.Column.ColumnType getArrayType() throws GPUdbException

  Get the sub-type of the array

  Returns:

  The ColumnBaseType of the array sub-type. Returns null if column is not an Array

  Throws:

  GPUdbException

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  getProperties

  public List<String> getProperties()

  Gets the list of properties that apply to the column.

  Returns:

  the list of properties that apply to the column

  See Also:

  • ColumnProperty

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  isVector

  public boolean isVector()

  Determine if the column is a Vector type

  Returns:

  True if the column is a Vector type

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  getVectorDimensions

  public int getVectorDimensions()

  Get vector datatype dimensions, -1 if not a vector

  Returns:

  Size of the vector, -1 if not a vector

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  hasProperty

  public boolean hasProperty(String property)

  Checks if the given property applies to the column.

  Returns:

  boolean indicating whether the given property exists in the column’s properties.

  See Also:

  • ColumnProperty

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  equals

  public boolean equals(Object obj)

  Overrides:

  equals in class Object

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  hashCode

  public int hashCode()

  Overrides:

  hashCode in class Object

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  toString

  public String toString()

  Overrides:

  toString in class Object