tMDMViewSearch Standard properties

Schema and Edit Schema

A schema is a row description, it defines the number of fields that will be processed and passed on to the next component. The schema is either Built-in or remote in the Repository.

Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:

• View schema: choose this option to view the schema only.

• Change to built-in property: choose this option to change the schema to Built-in for local changes.

• Update repository connection: choose this option to change the schema stored in the repository and decide whether to propagate the changes to all the Jobs upon completion.

  If you just want to propagate the changes to the current Job, you can select No upon completion and choose this schema metadata again in the Repository Content window.

Click Sync columns to collect the schema from the previous component.

Built-in: You create the schema and store it locally for this component only. For more information about a component schema in its Basic settings tab, see Basic settings tab.

Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs. For more information about a component schema in its Basic settings tab, see Basic settings tab.

XML Field

Select the name of the column in which you want to write the XML data.

MDM version

By default, Server 6.0 is selected. Although it is recommended to migrate existing Jobs for this new version, the Server 5.6 option is available to ease the process of the migration of your Jobs so as to keep them working without modification with a 6.0 server. To do so, an option on the server must be enabled to accept and translate requests from such Jobs.

URL

Type in the URL of the MDM server.

Username and Password

Type in the user authentication data for the MDM server.

To enter the password, click the [...] button next to the password field, enter the password in double quotes in the pop-up dialog box, and click OK to save the settings.

Data Container

Type in the name of the data container that holds the master data you want to read.

Type

Select Master or Staging to specify the database on which the action should be performed.

View Name

Type in the name of the view whose filters will be applied to process the records.

Operations

Complete this table to create the WHERE clause. The parameters to be set are:

• Xpath: Enter between quotes the path and the XML node to which you want to apply the condition.

• Function: Select an operator to be used from the list. The following operators are available:

  • Contains: Returns a result which contains the word or words entered. Note that full text search does not support special characters, for example, @, #, $.
  • Contains the sentence: Returns one or more results which contain the sentence entered.
  • Joins With: This operator is reserved for future use.
  • Starts With: Returns a result which begins with the string entered.
  • Equal: Returns a result which matches the value entered.
  • Not Equal: Returns a result of any value other than the null value and the value entered.
  • is greater than: Returns a result which is greater than the numerical value entered. Applies to number fields only.
  • is greater or equal: Returns a result which is greater than or equal to the numerical value entered. Applies to number fields only.
  • is lower than: Returns a result which is less than the numerical value entered. Applies to number fields only.
  • is lower or equal: Returns a result which is less than or equal to the numerical value entered. Applies to number fields only.
  • whole content contains: Performs a plain text search using the specified Xpath field in the selected data container. If you enter an empty string "" in the Xpath field and select whole content contains from the Function list, searches will be performed in all the fields of all entities in the selected data container.
  • is empty or null: Returns an empty field or a null value.

  Before using the conditions, bear in mind the following:

  • Depending on the type of field the Xpath points to, only certain operators apply. For example, if the field is a boolean, only the Equal or Not Equal operators are appropriate.

  • Searches in the master database support both full text search and standard SQL search, while searches in the staging database only support standard SQL search. For more information about how to manage database search modes, see Managing database search modes.

  • Standard SQL search considers the search content as an integrate phrase to be matched, while full text search interprets the search content as a phrase which contains multiple words, and the records that match any of the words will be returned. For example, if the search content is "test first name", full text search considers it as three independent words "test", "first", and "name", while standard SQL search considers it as one phrase "test first name".

  • The operator Not Equal does not support multi-occurrence fields or complex type fields.

• Value: enter the value you want to retrieve. The value can be a string (for example, "Apple"), an Entity element (for example, "Product/Name") or a user-based variable (for example, "${user_context.language" or "${user_context.properties['location']}").
  Information noteWarning: The vaue of each parameter is case sensitive.

• Predicate: Select a predicate from the drop-down list.

  The predicates none (default), or, and, and Not are now available for use. The other predicates are reserved for future.

  • none (default): is interpreted as and by default.
  • or: returns a record if any of the conditions separated by it is true.
  • and: returns a record if all the conditions separated by it are true.
  • Not: returns a record if the condition on which it is defined is not true.
  Information noteNote: The or predicate is interpreted only if it is defined on all conditions, except the last condition. Otherwise the or predicate is always interpreted as and. For more information, see the related description of behaviors of filters using multiple conditions and predicates in Talend MDM on Talend Help Center (https://help.talend.com).
• Active (boolean type): select a value from the drop-down list, True, False, or Custom, which controls whether to activate the filtering criteria when performing a view search. By default, the value is True, which means the filtering criteria is activated. If Custom is selected, you need to define a customized value in the Custom Active column cell.
• Custom Active: enter the customized value of the Active parameter. The customized value takes effect only when Custom is selected from the Active column cell drop-down list. It could be a context variable, which defines the value of the Active parameter dynamically at runtime.

Order (One Row)

Complete this table to decide the presentation order of the retrieved records. The parameters to be set are:

• XPath: define the path expression to select the XML node at which point the sorting operation is performed.
• Order: select the presentation order that may be asc (ascending) or desc (descending).

Spell Threshold

Set it to -1 to deactivate this threshold. This threshold is used to decide the spell checking level.

Skip Rows

Type in the count of rows to be ignored to specify from which row the process should begin. For example, if you type 8 in the field, the process will begin from the 9th row.

Max Rows

Type in the maximum number of rows to be processed. If Limit = 0, no row is read or processed. By default, the limit is -1, meaning that no limit is set.

Batch Size

Number of lines in each processed batch. By default, the batch size is set to -1, meaning that all the lines are processed in one batch.

tStatCatcher Statistics

Select this check box to gather the processing metadata at the Job level as well as at each component level.

Global Variables

ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box.

NB_LINE: the number of rows processed. This is an After variable and it returns an integer.

A Flow variable functions during the execution of a component while an After variable functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl+Space to access the variable list and choose the variable to use from it.

For more information about variables, see Using contexts and variables.

Usage rule

Use this component to retrieve specific records.

You can increase the timeout values for a Job using this component to help process a large number of data records. For more information, see advanced execution settings for JVM parameters in the article Timeout values for a Job using MDM components.

Connections

Outgoing links (from this component to another):

Row: Iterate

Trigger: Run if; On Component Ok; On Component Error, On Subjob Ok, On Subjob Error.

Incoming links (from one component to this one):

Row: Iterate;

Trigger: Run if, On Component Ok, On Component Error, On Subjob Ok, On Subjob Error

For further information regarding connections, see Using connections in a Job.