Updated conditional on job bean to support kabob case.

Also added comments  reader and writer properties so that boot's metadata resolver can utilize them.

resolves #794

Updated based on code review.

Updated java docs based on review

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/SingleStepJobAutoConfiguration.java

@@ -78,7 +78,7 @@ public class SingleStepJobAutoConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
-	@ConditionalOnProperty(prefix = "spring.batch.job", name = "jobName")
+	@ConditionalOnProperty(prefix = "spring.batch.job", name = "job-name")
 	public Job job(ItemReader<Map<String, Object>> itemReader,
 			ItemWriter<Map<String, Object>> itemWriter) {
 
@@ -95,5 +95,4 @@ public class SingleStepJobAutoConfiguration {
 		return this.jobBuilderFactory.get(this.properties.getJobName()).start(step)
 				.build();
 	}
-
 }

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/SingleStepJobProperties.java

@@ -27,10 +27,19 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job")
 public class SingleStepJobProperties {
 
+	/**
+	 * Name of the step in the single step job.
+	 */
 	private String stepName;
 
+	/**
+	 * The number of items to process per transaction or chunk.
+	 */
 	private Integer chunkSize;
 
+	/**
+	 * The name of the job.
+	 */
 	private String jobName;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/flatfile/FlatFileItemReaderProperties.java

@@ -34,38 +34,95 @@ import org.springframework.core.io.Resource;
 @ConfigurationProperties(prefix = "spring.batch.job.flatfileitemreader")
 public class FlatFileItemReaderProperties {
 
+	/**
+	 * Determines whether the state of the reader is persisted. Default is {@code true}.
+	 */
 	private boolean saveState = true;
 
+	/**
+	 * The name used to calculate the key within the
+	 * {@link org.springframework.batch.item.ExecutionContext}. Required if
+	 * {@link #setSaveState} is set to {@code true}.
+	 */
 	private String name;
 
+	/**
+	 * Configure the maximum number of items to be read.
+	 */
 	private int maxItemCount = Integer.MAX_VALUE;
 
+	/**
+	 * Index for the current item. Also used on restarts to indicate where to start from.
+	 */
 	private int currentItemCount = 0;
 
+	/**
+	 * A list of {@code String} elements used to indicate which records are comments.
+	 */
 	private List<String> comments = new ArrayList<>();
 
+	/**
+	 * The {@link Resource} to be used as input.
+	 */
 	private Resource resource;
 
+	/**
+	 * Configure whether the reader should be in strict mode (require the input
+	 * {@link Resource} to exist).
+	 */
 	private boolean strict = true;
 
+	/**
+	 * Configure the encoding used by the reader to read the input source. The default value
+	 * is {@link FlatFileItemReader#DEFAULT_CHARSET}.
+	 */
 	private String encoding = FlatFileItemReader.DEFAULT_CHARSET;
 
+	/**
+	 * The number of lines to skip at the beginning of reading the file.
+	 */
 	private int linesToSkip = 0;
 
+	/**
+	 * Indicates that a {@link DelimitedLineTokenizer} should be used to parse each line.
+	 */
 	private boolean delimited = false;
 
+	/**
+	 * Define the delimiter for the file.
+	 */
 	private String delimiter = DelimitedLineTokenizer.DELIMITER_COMMA;
 
+	/**
+	 * Define the character used to quote fields.
+	 */
 	private char quoteCharacter = DelimitedLineTokenizer.DEFAULT_QUOTE_CHARACTER;
 
+	/**
+	 * A list of indices of the fields within a delimited file to be included.
+	 */
 	private List<Integer> includedFields = new ArrayList<>();
 
+	/**
+	 * Indicates that a
+	 * {@link org.springframework.batch.item.file.transform.FixedLengthTokenizer} should
+	 * be used to parse the records in the file.
+	 */
 	private boolean fixedLength = false;
 
+	/**
+	 * The column ranges to be used to parse a fixed width file.
+	 */
 	private List<Range> ranges = new ArrayList<>();
 
+	/**
+	 * The names of the fields to be parsed from the file.
+	 */
 	private String[] names;
 
+	/**
+	 * Indicates whether the number of tokens must match the number of configured fields.
+	 */
 	private boolean parsingStrict = true;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/flatfile/FlatFileItemWriterProperties.java

@@ -31,40 +31,99 @@ import org.springframework.core.io.Resource;
 @ConfigurationProperties(prefix = "spring.batch.job.flatfileitemwriter")
 public class FlatFileItemWriterProperties {
 
+	/**
+	 * The {@link Resource} to be used as output.
+	 */
 	private Resource resource;
 
+	/**
+	 * Configure the use of the {@code DelimitedLineAggregator} to generate the output per item.
+	 * Default is {@code false}.
+	 */
 	private boolean delimited;
 
+	/**
+	 * Indicates to use a {@code FormatterLineAggregator} to generate the output per item.
+	 * Default is {@code false}.
+	 */
 	private boolean formatted;
 
+	/**
+	 * Configure the format the {@code FormatterLineAggregator} uses for each item.
+	 */
 	private String format;
 
+	/**
+	 * Configure the {@code Locale} to use when generating the output.
+	 */
 	private Locale locale = Locale.getDefault();
 
+	/**
+	 * Configure the maximum record length. If 0, the size is unbounded.
+	 */
 	private int maximumLength = 0;
 
+	/**
+	 * Configure the minimum record length.
+ 	 */
 	private int minimumLength = 0;
 
+	/**
+	 * Configure the {@code String} used to delimit the fields in the output file.
+	 */
 	private String delimiter = ",";
 
+	/**
+	 * File encoding for the output file.  Defaults to {@code FlatFileItemWriter.DEFAULT_CHARSET})
+	 */
 	private String encoding = FlatFileItemWriter.DEFAULT_CHARSET;
 
+	/**
+	 * A flag indicating that changes should be force-synced to disk on flush. Defaults to {@code false}.
+	 */
 	private boolean forceSync = false;
 
+	/**
+	 * Names of the fields to be extracted into the output.
+	 */
 	private String[] names;
 
+	/**
+	 * Configure if the output file is found if it should be appended to. Defaults to {@code false}.
+	 */
 	private boolean append = false;
 
+	/**
+	 * String used to separate lines in output. Defaults to the {@code System} property {@code line.separator}.
+	 */
 	private String lineSeparator = FlatFileItemWriter.DEFAULT_LINE_SEPARATOR;
 
+	/**
+	 * The name used to calculate the key within the
+	 * {@link org.springframework.batch.item.ExecutionContext}. Required if
+	 * {@link #setSaveState} is set to {@code true}.
+	 */
 	private String name;
 
+	/**
+	 * Returns the configured value of whether the state of the reader is persisted.
+	 */
 	private boolean saveState = true;
 
+	/**
+	 * Indicates whether the output file should be deleted if no output was written to it.
+	 * Defaults to {@code false}.
+	 */
 	private boolean shouldDeleteIfEmpty = false;
 
+	/**
+	 * Indicates whether an existing output file should be deleted on startup. Defaults to {@code true}.
+	 */
 	private boolean shouldDeleteIfExists = true;
 
+	/**
+	 * Indicates whether flushing the buffer should be delayed while a transaction is active.  Defaults to {@code true}.
+	 */
 	private boolean transactional = FlatFileItemWriter.DEFAULT_TRANSACTIONAL;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/jdbc/JdbcBatchItemWriterProperties.java

@@ -27,10 +27,21 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.jdbcbatchitemwriter")
 public class JdbcBatchItemWriterProperties {
 
+	/**
+	 * The name used to calculate the key within the
+	 * {@link org.springframework.batch.item.ExecutionContext}.
+	 */
 	private String name;
 
+	/**
+	 * The SQL statement to be used to update the database.
+	 */
 	private String sql;
 
+	/**
+	 * If set to {@code true}, confirms that every insert results in the update of at least one
+	 * row in the database. Defaults to {@code true}.
+	 */
 	private boolean assertUpdates = true;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/jdbc/JdbcCursorItemReaderProperties.java

@@ -25,28 +25,72 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.jdbccursoritemreader")
 public class JdbcCursorItemReaderProperties {
 
+	/**
+	 * Configure whether the state of the
+	 * {@link org.springframework.batch.item.ItemStreamSupport} should be persisted
+	 * within the {@link org.springframework.batch.item.ExecutionContext} for
+	 * restart purposes. Defaults to {@code true}.
+	 */
 	private boolean saveState = true;
 
+	/**
+	 * Returns the configured value of the name used to calculate {@code ExecutionContext} keys.
+	 */
 	private String name;
 
+	/**
+	 * Configure the maximum number of items to be read.
+	 */
 	private int maxItemCount = Integer.MAX_VALUE;
 
+	/**
+	 * Index for the current item. Also used on restarts to indicate where to start from.
+	 * Defaults to 0.
+	 */
 	private int currentItemCount = 0;
 
+	/**
+	 * The number of items to return each time the cursor fetches from the server.
+	 */
 	private int fetchSize;
 
+	/**
+	 * Sets the maximum number of rows to be read with this reader.
+	 */
 	private int maxRows;
 
+	/**
+	 * The time in milliseconds for the query to timeout.
+	 */
 	private int queryTimeout;
 
+	/**
+	 * Establishes whether SQL warnings should be ignored. Defaults to {@code false}.
+	 */
 	private boolean ignoreWarnings;
 
+	/**
+	 * Sets whether the cursor's position should be validated with each item read.
+	 * Defaults to {@code false}.
+	 */
 	private boolean verifyCursorPosition;
 
+	/**
+	 * Establishes {@code false} the driver supports absolute positioning of a cursor.
+	 * Defaults to {@code false}.
+	 */
 	private boolean driverSupportsAbsolute;
 
+	/**
+	 * Establishes whether the connection used for the cursor is being used by all other
+	 * processing and is, therefore, part of the same transaction.
+	 * Defaults to {@code false}
+	 */
 	private boolean useSharedExtendedConnection;
 
+	/**
+	 * The SQL query to be executed.
+	 */
 	private String sql;
 
 	/**
@@ -226,8 +270,8 @@ public class JdbcCursorItemReaderProperties {
 	}
 
 	/**
-	 * Provides if the the connection used for the cursor is being used by all other
-	 * processing, therefor part of the same transaction.
+	 * Sets whether the connection used for the cursor is being used by all other
+	 * processing and is, therefore, part of the same transaction.
 	 * @return true if the connection is shared beyond this query
 	 */
 	public boolean isUseSharedExtendedConnection() {
@@ -235,8 +279,8 @@ public class JdbcCursorItemReaderProperties {
 	}
 
 	/**
-	 * Sets if the the connection used for the cursor is being used by all other
-	 * processing, therefor part of the same transaction.
+	 * Sets whether the the connection used for the cursor is being used by all other
+	 * processing and is, therefore, part of the same transaction.
 	 * @param useSharedExtendedConnection true if the connection is shared beyond this
 	 * query
 	 * @see org.springframework.batch.item.database.builder.JdbcCursorItemReaderBuilder#useSharedExtendedConnection(boolean)

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/kafka/KafkaItemReaderProperties.java

@@ -30,14 +30,33 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.kafkaitemreader")
 public class KafkaItemReaderProperties {
 
+	/**
+	 * The name used to calculate the key within the
+	 * {@link org.springframework.batch.item.ExecutionContext}.
+	 */
 	private String name;
 
+	/**
+	 * The topic name from which the messages is read.
+	 */
 	private String topic;
 
+	/**
+	 * A list of partitions to manually assign to the consumer. Defaults to a single entry
+	 * value of 1.
+	 */
 	private List<Integer> partitions = new ArrayList<>();
 
+	/**
+	 * Establish the {@code pollTimeout} for the {@code poll()} operations. Defaults to 30 seconds.
+	 */
 	private long pollTimeOutInSeconds = 30L;
 
+	/**
+	 * Configure whether the state of the {@link org.springframework.batch.item.ItemStreamSupport}
+	 * should be persisted within the {@link org.springframework.batch.item.ExecutionContext}
+	 * for restart purposes.  Defaults to {@code true}.
+	 */
 	private boolean saveState = true;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/kafka/KafkaItemWriterProperties.java

@@ -27,8 +27,15 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.kafkaitemwriter")
 public class KafkaItemWriterProperties {
 
+	/**
+	 * The topic name from which the messages are written.
+	 */
 	private String topic;
 
+	/**
+	 * Indicate whether the items being passed to the writer are all to be sent as delete
+	 * events to the topic. Defaults to {@code false}.
+	 */
 	private boolean delete;
 
 	/**
@@ -40,7 +47,7 @@ public class KafkaItemWriterProperties {
 	}
 
 	/**
-	 * The topic name from which the messages will be read.
+	 * The topic name from which the messages are written.
 	 * @param topic name of the topic
 	 */
 	public void setTopic(String topic) {

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/rabbit/AmqpItemReaderProperties.java

@@ -28,8 +28,15 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.amqpitemreader")
 public class AmqpItemReaderProperties {
 
+	/**
+	 * Enables or disables the {@code AmqpItemReader}. Defaults to {@code false}.
+	 */
 	private boolean enabled;
 
+	/**
+	 * Establishes whether the {@link Jackson2JsonMessageConverter} is to be used as a
+	 * message converter. Defaults to {@code true}.
+	 */
 	private boolean jsonConverterEnabled = true;
 
 	/**

spring-cloud-starter-single-step-batch-job/src/main/java/org/springframework/cloud/task/batch/autoconfigure/rabbit/AmqpItemWriterProperties.java

@@ -26,21 +26,28 @@ import org.springframework.boot.context.properties.ConfigurationProperties;
 @ConfigurationProperties(prefix = "spring.batch.job.amqpitemwriter")
 public class AmqpItemWriterProperties {
 
+	/**
+	 * Enables or disables the AmqpItemWriter. Defaults to {@code false}.
+	 */
 	private boolean enabled;
 
+	/**
+	 * Establishes whether the {@link Jackson2JsonMessageConverter} is to be used as a
+	 * message converter. Defaults to {@code true}.
+	 */
 	private boolean jsonConverterEnabled = true;
 
 	/**
 	 * The state of the enabled flag.
-	 * @return true if AmqpItemWriter is enabled. Otherwise false.
+	 * @return {@code true} if {@code AmqpItemWriter} is enabled. Otherwise {@code false}.
 	 */
 	public boolean isEnabled() {
 		return enabled;
 	}
 
 	/**
-	 * Enables or disables the AmqpItemReader.
-	 * @param enabled if true then AmqpItemWriter will be enabled. Defaults to false.
+	 * Enables or disables the {@code AmqpItemWriter}.
+	 * @param enabled if {@code true} then {@code AmqpItemWriter} is enabled. Defaults to {@code false}.
 	 */
 	public void setEnabled(boolean enabled) {
 		this.enabled = enabled;

spring-cloud-starter-single-step-batch-job/src/test/java/org/springframework/cloud/task/batch/autoconfigure/SingleStepJobAutoConfigurationTests.java

@@ -112,6 +112,25 @@ public class SingleStepJobAutoConfigurationTests {
 						"spring.batch.job.stepName=step1",
 						"spring.batch.job.chunkSize=5");
 
+		validateConfiguration(applicationContextRunner);
+	}
+
+	@Test
+	public void testSimpleConfigurationKabobStyle() {
+		ApplicationContextRunner applicationContextRunner = new ApplicationContextRunner()
+			.withUserConfiguration(SimpleConfiguration.class)
+			.withConfiguration(
+				AutoConfigurations.of(PropertyPlaceholderAutoConfiguration.class,
+					BatchAutoConfiguration.class,
+					SingleStepJobAutoConfiguration.class))
+			.withPropertyValues("spring.batch.job.job-name=job",
+				"spring.batch.job.step-name=step1",
+				"spring.batch.job.chunk-size=5");
+
+			validateConfiguration(applicationContextRunner);
+	}
+
+	private void validateConfiguration(ApplicationContextRunner applicationContextRunner) {
 		applicationContextRunner.run((context) -> {
 			JobLauncher jobLauncher = context.getBean(JobLauncher.class);
 

spring-cloud-task-samples/tasksink/src/test/java/io/spring/TaskSinkApplicationTests.java

@@ -78,7 +78,7 @@ public class TaskSinkApplicationTests {
 		assertThat(actualRequest.getDefinition().getProperties()
 			.get("server.port")).isEqualTo("0");
 		assertThat(actualRequest.getResource().toString()
-			.contains("maven://org.springframework.cloud.task.app:timestamp-task:jar:1.0.1.RELEASE"))
+			.contains("org.springframework.cloud.task.app:timestamp-task:jar:1.0.1.RELEASE"))
 			.isTrue();
 	}
 }