Package com.anthropic.models.messages
Class MessageCreateParams.System
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public final class MessageCreateParams.SystemSystem prompt.
A system prompt is a way of providing context and instructions to Claude, such as specifying a particular goal or role. See our guide to system prompts.
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Nested Class Summary
Nested Classes Modifier and Type Class Description public interfaceMessageCreateParams.System.VisitorAn interface that defines how to map each variant of System to a value of type T.
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Method Summary
Modifier and Type Method Description final Optional<String>string()final Optional<List<TextBlockParam>>textBlockParams()final BooleanisString()final BooleanisTextBlockParams()final StringasString()final List<TextBlockParam>asTextBlockParams()final Optional<JsonValue>_json()final <T extends Any> Taccept(MessageCreateParams.System.Visitor<T> visitor)Maps this instance's current variant to a value of type T using the given visitor. final MessageCreateParams.Systemvalidate()Validates that the types of all values in this object match their expected types recursively. final BooleanisValid()Booleanequals(Object other)IntegerhashCode()StringtoString()final static MessageCreateParams.SystemofString(String string)final static MessageCreateParams.SystemofTextBlockParams(List<TextBlockParam> textBlockParams)-
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Method Detail
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textBlockParams
final Optional<List<TextBlockParam>> textBlockParams()
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isTextBlockParams
final Boolean isTextBlockParams()
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asTextBlockParams
final List<TextBlockParam> asTextBlockParams()
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accept
final <T extends Any> T accept(MessageCreateParams.System.Visitor<T> visitor)
Maps this instance's current variant to a value of type T using the given visitor.
Note that this method is not forwards compatible with new variants from the API, unless visitor overrides Visitor.unknown. To handle variants not known to this version of the SDK gracefully, consider overriding Visitor.unknown:
import com.anthropic.core.JsonValue; import java.util.Optional; Optional<String> result = system.accept(new System.Visitor<Optional<String>>() { @Override public Optional<String> visitString(String string) { return Optional.of(string.toString()); } // ... @Override public Optional<String> unknown(JsonValue json) { // Or inspect the `json`. return Optional.empty(); } });
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validate
final MessageCreateParams.System validate()
Validates that the types of all values in this object match their expected types recursively.
This method is not forwards compatible with new types from the API for existing fields.
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ofString
final static MessageCreateParams.System ofString(String string)
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ofTextBlockParams
final static MessageCreateParams.System ofTextBlockParams(List<TextBlockParam> textBlockParams)
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