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Package com.gpudb.protocol

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Class FilterByValueRequest

java.lang.Object
com.gpudb.protocol.FilterByValueRequest
All Implemented Interfaces:
org.apache.avro.generic.GenericContainer, org.apache.avro.generic.IndexedRecord
public class FilterByValueRequest extends Object implements org.apache.avro.generic.IndexedRecord
A set of parameters for GPUdb.filterByValue.

Calculates which objects from a table has a particular value for a particular column. The input parameters provide a way to specify either a String or a Double valued column and a desired value for the column on which the filter is performed. The operation is synchronous, meaning that a response will not be returned until all the objects are fully available. The response payload provides the count of the resulting set. A new result view which satisfies the input filter restriction specification is also created with a view name passed in as part of the input payload. Although this functionality can also be accomplished with the standard filter function, it is more efficient.

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    Constructor Details

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      FilterByValueRequest

      public FilterByValueRequest()
      Constructs a FilterByValueRequest object with default parameters.

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      FilterByValueRequest

      public FilterByValueRequest(String tableName, String viewName, boolean isString, double value, String valueStr, String columnName, Map<String,String> options)
      Constructs a FilterByValueRequest object with the specified parameters.
      Parameters:
      tableName - Name of an existing table on which to perform the calculation, in [schema_name.]table_name format, using standard name resolution rules.
      viewName - If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ”.
      isString - Indicates whether the value being searched for is string or numeric.
      value - The value to search for. The default value is 0.
      valueStr - The string value to search for. The default value is ”.
      columnName - Name of a column on which the filter by value would be applied.
      options - Optional parameters.
      • CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema for the newly created view. If the schema is non-existent, it will be automatically created.
      The default value is an empty Map.

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    Method Details

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      getClassSchema

      public static org.apache.avro.Schema getClassSchema()
      This method supports the Avro framework and is not intended to be called directly by the user.
      Returns:
      The schema for the class.

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      getTableName

      public String getTableName()
      Name of an existing table on which to perform the calculation, in [schema_name.]table_name format, using standard name resolution rules.
      Returns:
      The current value of tableName.

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      setTableName

      public FilterByValueRequest setTableName(String tableName)
      Name of an existing table on which to perform the calculation, in [schema_name.]table_name format, using standard name resolution rules.
      Parameters:
      tableName - The new value for tableName.
      Returns:
      this to mimic the builder pattern.

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      getViewName

      public String getViewName()
      If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ”.
      Returns:
      The current value of viewName.

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      setViewName

      public FilterByValueRequest setViewName(String viewName)
      If provided, then this will be the name of the view containing the results, in [schema_name.]view_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ”.
      Parameters:
      viewName - The new value for viewName.
      Returns:
      this to mimic the builder pattern.

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      getIsString

      public boolean getIsString()
      Indicates whether the value being searched for is string or numeric.
      Returns:
      The current value of isString.

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      setIsString

      public FilterByValueRequest setIsString(boolean isString)
      Indicates whether the value being searched for is string or numeric.
      Parameters:
      isString - The new value for isString.
      Returns:
      this to mimic the builder pattern.

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      getValue

      public double getValue()
      The value to search for. The default value is 0.
      Returns:
      The current value of value.

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      setValue

      public FilterByValueRequest setValue(double value)
      The value to search for. The default value is 0.
      Parameters:
      value - The new value for value.
      Returns:
      this to mimic the builder pattern.

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      getValueStr

      public String getValueStr()
      The string value to search for. The default value is ”.
      Returns:
      The current value of valueStr.

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      setValueStr

      public FilterByValueRequest setValueStr(String valueStr)
      The string value to search for. The default value is ”.
      Parameters:
      valueStr - The new value for valueStr.
      Returns:
      this to mimic the builder pattern.

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      getColumnName

      public String getColumnName()
      Name of a column on which the filter by value would be applied.
      Returns:
      The current value of columnName.

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      setColumnName

      public FilterByValueRequest setColumnName(String columnName)
      Name of a column on which the filter by value would be applied.
      Parameters:
      columnName - The new value for columnName.
      Returns:
      this to mimic the builder pattern.

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      getOptions

      public Map<String,String> getOptions()
      Optional parameters.
      • CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema for the newly created view. If the schema is non-existent, it will be automatically created.
      The default value is an empty Map.
      Returns:
      The current value of options.

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      setOptions

      public FilterByValueRequest setOptions(Map<String,String> options)
      Optional parameters.
      • CREATE_TEMP_TABLE: If TRUE, a unique temporary table name will be generated in the sys_temp schema and used in place of viewName. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in QUALIFIED_VIEW_NAME. Supported values:The default value is FALSE.
      • COLLECTION_NAME: [DEPRECATED—please specify the containing schema for the view as part of viewName and use GPUdb.createSchema to create the schema if non-existent] Name of a schema for the newly created view. If the schema is non-existent, it will be automatically created.
      The default value is an empty Map.
      Parameters:
      options - The new value for options.
      Returns:
      this to mimic the builder pattern.

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      getSchema

      public org.apache.avro.Schema getSchema()
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      getSchema in interface org.apache.avro.generic.GenericContainer
      Returns:
      The schema object describing this class.

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      get

      public Object get(int index)
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      get in interface org.apache.avro.generic.IndexedRecord
      Parameters:
      index - the position of the field to get
      Returns:
      value of the field with the given index.
      Throws:
      IndexOutOfBoundsException

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      put

      public void put(int index, Object value)
      This method supports the Avro framework and is not intended to be called directly by the user.
      Specified by:
      put in interface org.apache.avro.generic.IndexedRecord
      Parameters:
      index - the position of the field to set
      value - the value to set
      Throws:
      IndexOutOfBoundsException

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      equals

      public boolean equals(Object obj)
      Overrides:
      equals in class Object

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      toString

      public String toString()
      Overrides:
      toString in class Object

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      hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object