How to use JQL eq and like operator with a custom field

[Pradeep Panayal]

I was trying to filter the issues by a custom field (Data type : Single line) in JIRA plugin, I tried using eq and like function of jqlClauseBuilder. It returns no issues. Following is my code.

CustomField customField = getCustomField("CustomField1"); 

/* Build the query */
jqlClauseBuilder = jqlClauseBuilder.project("Sample").and().issueType("TASK")
 .and().customField(customField.getIdAsLong()).eq("SampleValue");
 

how can I use eq or like with my custom field? 

How can I make use of ~(CONTAINS) in jqlClauseBuilder?